./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8 --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- 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-2329fc7 [2022-12-13 14:42:28,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:42:28,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:42:28,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:42:28,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:42:28,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:42:28,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:42:28,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:42:28,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:42:28,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:42:28,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:42:28,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:42:28,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:42:28,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:42:28,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:42:28,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:42:28,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:42:28,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:42:28,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:42:28,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:42:28,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:42:28,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:42:28,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:42:28,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:42:28,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:42:28,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:42:28,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:42:28,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:42:28,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:42:28,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:42:28,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:42:28,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:42:28,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:42:28,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:42:28,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:42:28,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:42:28,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:42:28,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:42:28,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:42:28,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:42:28,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:42:28,337 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:42:28,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:42:28,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:42:28,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:42:28,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:42:28,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:42:28,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:42:28,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:42:28,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:42:28,379 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:42:28,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:42:28,379 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:42:28,379 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:42:28,380 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:42:28,381 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:42:28,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:42:28,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:42:28,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:42:28,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:42:28,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:42:28,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:42:28,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:42:28,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:42:28,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:42:28,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:42:28,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:42:28,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:42:28,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:42:28,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:42:28,383 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:42:28,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:42:28,383 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:42:28,384 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_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-12-13 14:42:28,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:42:28,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:42:28,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:42:28,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:42:28,593 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:42:28,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-12-13 14:42:31,196 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:42:31,472 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:42:31,472 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-12-13 14:42:31,498 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/data/3e9c0c090/5793532e189c4945ba44fb8e4e9243cb/FLAG0cd1b6919 [2022-12-13 14:42:31,509 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/data/3e9c0c090/5793532e189c4945ba44fb8e4e9243cb [2022-12-13 14:42:31,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:42:31,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:42:31,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:42:31,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:42:31,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:42:31,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:42:31" (1/1) ... [2022-12-13 14:42:31,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4838de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:31, skipping insertion in model container [2022-12-13 14:42:31,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:42:31" (1/1) ... [2022-12-13 14:42:31,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:42:31,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:42:31,653 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:42:32,011 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_ff03ab78-6590-47d5-914b-6f1dc0771a7e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-12-13 14:42:32,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:42:32,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:42:32,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:42:32,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:42:32,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:42:32,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:42:32,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:42:32,045 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:42:32,053 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:42:32,074 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_ff03ab78-6590-47d5-914b-6f1dc0771a7e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-12-13 14:42:32,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:42:32,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:42:32,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:42:32,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:42:32,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:42:32,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:42:32,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:42:32,162 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:42:32,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32 WrapperNode [2022-12-13 14:42:32,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:42:32,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:42:32,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:42:32,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:42:32,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,215 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2022-12-13 14:42:32,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:42:32,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:42:32,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:42:32,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:42:32,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:42:32,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:42:32,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:42:32,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:42:32,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (1/1) ... [2022-12-13 14:42:32,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:42:32,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:42:32,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:42:32,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:42:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:42:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:42:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:42:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:42:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:42:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:42:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:42:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:42:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 14:42:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 14:42:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:42:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:42:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:42:32,318 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:42:32,566 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:42:32,568 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:42:32,769 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:42:32,793 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:42:32,793 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:42:32,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:42:32 BoogieIcfgContainer [2022-12-13 14:42:32,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:42:32,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:42:32,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:42:32,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:42:32,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:42:31" (1/3) ... [2022-12-13 14:42:32,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107fd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:42:32, skipping insertion in model container [2022-12-13 14:42:32,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:42:32" (2/3) ... [2022-12-13 14:42:32,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107fd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:42:32, skipping insertion in model container [2022-12-13 14:42:32,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:42:32" (3/3) ... [2022-12-13 14:42:32,804 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-12-13 14:42:32,813 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:42:32,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:42:32,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:42:32,824 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:42:32,877 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 14:42:32,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2022-12-13 14:42:32,967 INFO L130 PetriNetUnfolder]: 8/206 cut-off events. [2022-12-13 14:42:32,968 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:42:32,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 8/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 337 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2022-12-13 14:42:32,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2022-12-13 14:42:32,975 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 129 transitions, 267 flow [2022-12-13 14:42:32,978 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:42:32,985 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 129 transitions, 267 flow [2022-12-13 14:42:32,987 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 129 transitions, 267 flow [2022-12-13 14:42:32,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 129 transitions, 267 flow [2022-12-13 14:42:33,010 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-13 14:42:33,010 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 14:42:33,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 129 events. 2/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 122 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-13 14:42:33,012 INFO L119 LiptonReduction]: Number of co-enabled transitions 2856 [2022-12-13 14:42:38,705 INFO L134 LiptonReduction]: Checked pairs total: 5644 [2022-12-13 14:42:38,705 INFO L136 LiptonReduction]: Total number of compositions: 123 [2022-12-13 14:42:38,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:42:38,725 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;@72089afa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:42:38,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 14:42:38,729 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 14:42:38,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:42:38,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:38,730 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 14:42:38,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:38,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 16223437, now seen corresponding path program 1 times [2022-12-13 14:42:38,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:38,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729178819] [2022-12-13 14:42:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:38,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:39,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:39,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729178819] [2022-12-13 14:42:39,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729178819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:39,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:39,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:42:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243340873] [2022-12-13 14:42:39,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:39,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:42:39,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:39,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:42:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:42:39,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 286 [2022-12-13 14:42:39,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:39,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:39,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 286 [2022-12-13 14:42:39,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:39,562 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2022-12-13 14:42:39,562 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 14:42:39,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 715 event pairs, 81 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 360. Up to 206 conditions per place. [2022-12-13 14:42:39,564 INFO L137 encePairwiseOnDemand]: 278/286 looper letters, 17 selfloop transitions, 6 changer transitions 0/23 dead transitions. [2022-12-13 14:42:39,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 101 flow [2022-12-13 14:42:39,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:42:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:42:39,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 691 transitions. [2022-12-13 14:42:39,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48321678321678324 [2022-12-13 14:42:39,576 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 691 transitions. [2022-12-13 14:42:39,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 691 transitions. [2022-12-13 14:42:39,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:39,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 691 transitions. [2022-12-13 14:42:39,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:39,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:39,589 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:39,591 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 55 flow. Second operand 5 states and 691 transitions. [2022-12-13 14:42:39,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 101 flow [2022-12-13 14:42:39,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:42:39,594 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 76 flow [2022-12-13 14:42:39,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-12-13 14:42:39,598 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2022-12-13 14:42:39,598 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 76 flow [2022-12-13 14:42:39,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:39,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:39,599 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:42:39,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:42:39,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:39,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash 502928366, now seen corresponding path program 1 times [2022-12-13 14:42:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:39,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425082477] [2022-12-13 14:42:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:39,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:39,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:39,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425082477] [2022-12-13 14:42:39,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425082477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:39,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:39,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:42:39,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715099262] [2022-12-13 14:42:39,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:39,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:42:39,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:39,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:42:39,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:42:40,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 14:42:40,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:40,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 14:42:40,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:40,184 INFO L130 PetriNetUnfolder]: 100/195 cut-off events. [2022-12-13 14:42:40,184 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-13 14:42:40,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 195 events. 100/195 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 669 event pairs, 36 based on Foata normal form. 3/158 useless extension candidates. Maximal degree in co-relation 426. Up to 177 conditions per place. [2022-12-13 14:42:40,186 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 23 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2022-12-13 14:42:40,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 164 flow [2022-12-13 14:42:40,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:42:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:42:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 691 transitions. [2022-12-13 14:42:40,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48321678321678324 [2022-12-13 14:42:40,189 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 691 transitions. [2022-12-13 14:42:40,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 691 transitions. [2022-12-13 14:42:40,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:40,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 691 transitions. [2022-12-13 14:42:40,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,194 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,194 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 76 flow. Second operand 5 states and 691 transitions. [2022-12-13 14:42:40,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 164 flow [2022-12-13 14:42:40,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:42:40,196 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 121 flow [2022-12-13 14:42:40,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2022-12-13 14:42:40,197 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2022-12-13 14:42:40,197 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 121 flow [2022-12-13 14:42:40,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:40,198 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:42:40,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:42:40,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1589415671, now seen corresponding path program 1 times [2022-12-13 14:42:40,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:40,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208668601] [2022-12-13 14:42:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:40,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:40,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208668601] [2022-12-13 14:42:40,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208668601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:40,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:40,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:42:40,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76016368] [2022-12-13 14:42:40,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:40,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:42:40,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:40,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:42:40,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:42:40,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 14:42:40,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:40,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 14:42:40,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:40,822 INFO L130 PetriNetUnfolder]: 94/185 cut-off events. [2022-12-13 14:42:40,822 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2022-12-13 14:42:40,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 185 events. 94/185 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 617 event pairs, 70 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 467. Up to 175 conditions per place. [2022-12-13 14:42:40,824 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 25 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2022-12-13 14:42:40,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 213 flow [2022-12-13 14:42:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:42:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:42:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 690 transitions. [2022-12-13 14:42:40,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4825174825174825 [2022-12-13 14:42:40,826 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 690 transitions. [2022-12-13 14:42:40,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 690 transitions. [2022-12-13 14:42:40,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:40,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 690 transitions. [2022-12-13 14:42:40,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,831 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 121 flow. Second operand 5 states and 690 transitions. [2022-12-13 14:42:40,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 213 flow [2022-12-13 14:42:40,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 201 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-12-13 14:42:40,834 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 162 flow [2022-12-13 14:42:40,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2022-12-13 14:42:40,835 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2022-12-13 14:42:40,835 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 162 flow [2022-12-13 14:42:40,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:40,836 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:40,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:42:40,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:40,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:40,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2024325665, now seen corresponding path program 1 times [2022-12-13 14:42:40,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:40,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111819414] [2022-12-13 14:42:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:40,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:41,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:41,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111819414] [2022-12-13 14:42:41,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111819414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:41,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:41,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:41,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245818544] [2022-12-13 14:42:41,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:41,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:42:41,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:41,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:42:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:42:41,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 14:42:41,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 162 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:41,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:41,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 14:42:41,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:41,734 INFO L130 PetriNetUnfolder]: 124/235 cut-off events. [2022-12-13 14:42:41,734 INFO L131 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2022-12-13 14:42:41,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 235 events. 124/235 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 837 event pairs, 21 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 327. Up to 181 conditions per place. [2022-12-13 14:42:41,735 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 31 selfloop transitions, 14 changer transitions 0/45 dead transitions. [2022-12-13 14:42:41,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 302 flow [2022-12-13 14:42:41,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:42:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:42:41,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 966 transitions. [2022-12-13 14:42:41,737 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4825174825174825 [2022-12-13 14:42:41,737 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 966 transitions. [2022-12-13 14:42:41,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 966 transitions. [2022-12-13 14:42:41,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:41,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 966 transitions. [2022-12-13 14:42:41,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:41,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:41,742 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:41,742 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 162 flow. Second operand 7 states and 966 transitions. [2022-12-13 14:42:41,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 302 flow [2022-12-13 14:42:41,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 292 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 14:42:41,743 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 226 flow [2022-12-13 14:42:41,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2022-12-13 14:42:41,744 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 16 predicate places. [2022-12-13 14:42:41,744 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 226 flow [2022-12-13 14:42:41,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:41,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:41,745 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:41,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:42:41,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2017175838, now seen corresponding path program 1 times [2022-12-13 14:42:41,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:41,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394468968] [2022-12-13 14:42:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:41,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:42,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:42,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394468968] [2022-12-13 14:42:42,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394468968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:42,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:42,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:42:42,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869072360] [2022-12-13 14:42:42,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:42,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:42:42,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:42:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:42:42,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 286 [2022-12-13 14:42:42,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:42,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:42,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 286 [2022-12-13 14:42:42,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:42,395 INFO L130 PetriNetUnfolder]: 117/229 cut-off events. [2022-12-13 14:42:42,396 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-12-13 14:42:42,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 229 events. 117/229 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 846 event pairs, 10 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 689. Up to 151 conditions per place. [2022-12-13 14:42:42,397 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 33 selfloop transitions, 18 changer transitions 0/51 dead transitions. [2022-12-13 14:42:42,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 51 transitions, 375 flow [2022-12-13 14:42:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:42:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:42:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 984 transitions. [2022-12-13 14:42:42,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4915084915084915 [2022-12-13 14:42:42,400 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 984 transitions. [2022-12-13 14:42:42,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 984 transitions. [2022-12-13 14:42:42,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:42,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 984 transitions. [2022-12-13 14:42:42,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.57142857142858) internal successors, (984), 7 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:42,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:42,407 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:42,407 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 226 flow. Second operand 7 states and 984 transitions. [2022-12-13 14:42:42,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 51 transitions, 375 flow [2022-12-13 14:42:42,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 51 transitions, 346 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 14:42:42,410 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 274 flow [2022-12-13 14:42:42,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=274, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2022-12-13 14:42:42,411 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 21 predicate places. [2022-12-13 14:42:42,411 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 274 flow [2022-12-13 14:42:42,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:42,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:42,412 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:42,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:42:42,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2024325679, now seen corresponding path program 1 times [2022-12-13 14:42:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:42,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675151221] [2022-12-13 14:42:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:42,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:42,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:42,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675151221] [2022-12-13 14:42:42,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675151221] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:42,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:42,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933599742] [2022-12-13 14:42:42,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:42:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:42:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:42:42,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 14:42:42,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 274 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:42,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:42,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 14:42:42,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:43,113 INFO L130 PetriNetUnfolder]: 111/219 cut-off events. [2022-12-13 14:42:43,113 INFO L131 PetriNetUnfolder]: For 360/360 co-relation queries the response was YES. [2022-12-13 14:42:43,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 219 events. 111/219 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 780 event pairs, 20 based on Foata normal form. 4/213 useless extension candidates. Maximal degree in co-relation 736. Up to 175 conditions per place. [2022-12-13 14:42:43,115 INFO L137 encePairwiseOnDemand]: 278/286 looper letters, 29 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2022-12-13 14:42:43,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 370 flow [2022-12-13 14:42:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:42:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:42:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 829 transitions. [2022-12-13 14:42:43,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4831002331002331 [2022-12-13 14:42:43,117 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 829 transitions. [2022-12-13 14:42:43,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 829 transitions. [2022-12-13 14:42:43,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:43,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 829 transitions. [2022-12-13 14:42:43,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,120 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,120 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 274 flow. Second operand 6 states and 829 transitions. [2022-12-13 14:42:43,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 370 flow [2022-12-13 14:42:43,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 44 transitions, 342 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-13 14:42:43,125 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 270 flow [2022-12-13 14:42:43,125 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2022-12-13 14:42:43,125 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 22 predicate places. [2022-12-13 14:42:43,126 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 270 flow [2022-12-13 14:42:43,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:43,126 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:42:43,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2027237509, now seen corresponding path program 2 times [2022-12-13 14:42:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:43,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646002928] [2022-12-13 14:42:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:43,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:43,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:43,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646002928] [2022-12-13 14:42:43,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646002928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:43,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:43,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:43,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713003943] [2022-12-13 14:42:43,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:43,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:42:43,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:43,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:42:43,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:42:43,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 14:42:43,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 270 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:43,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 14:42:43,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:43,712 INFO L130 PetriNetUnfolder]: 135/259 cut-off events. [2022-12-13 14:42:43,713 INFO L131 PetriNetUnfolder]: For 408/408 co-relation queries the response was YES. [2022-12-13 14:42:43,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 259 events. 135/259 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 973 event pairs, 26 based on Foata normal form. 16/261 useless extension candidates. Maximal degree in co-relation 868. Up to 115 conditions per place. [2022-12-13 14:42:43,714 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 33 selfloop transitions, 20 changer transitions 4/57 dead transitions. [2022-12-13 14:42:43,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 479 flow [2022-12-13 14:42:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:42:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:42:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 971 transitions. [2022-12-13 14:42:43,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.485014985014985 [2022-12-13 14:42:43,716 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 971 transitions. [2022-12-13 14:42:43,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 971 transitions. [2022-12-13 14:42:43,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:43,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 971 transitions. [2022-12-13 14:42:43,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,720 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,720 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 270 flow. Second operand 7 states and 971 transitions. [2022-12-13 14:42:43,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 479 flow [2022-12-13 14:42:43,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 57 transitions, 447 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 14:42:43,722 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 317 flow [2022-12-13 14:42:43,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=317, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2022-12-13 14:42:43,722 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2022-12-13 14:42:43,722 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 317 flow [2022-12-13 14:42:43,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:43,723 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:43,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:42:43,723 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:43,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2027237495, now seen corresponding path program 2 times [2022-12-13 14:42:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:43,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387853605] [2022-12-13 14:42:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:43,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:43,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:43,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:43,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387853605] [2022-12-13 14:42:43,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387853605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:43,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:43,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:43,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142711611] [2022-12-13 14:42:43,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:43,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:42:43,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:42:43,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:42:44,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 14:42:44,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 317 flow. Second operand has 8 states, 8 states have (on average 130.875) internal successors, (1047), 8 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:44,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:44,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 14:42:44,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:44,472 INFO L130 PetriNetUnfolder]: 101/202 cut-off events. [2022-12-13 14:42:44,472 INFO L131 PetriNetUnfolder]: For 466/466 co-relation queries the response was YES. [2022-12-13 14:42:44,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 202 events. 101/202 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 718 event pairs, 17 based on Foata normal form. 12/212 useless extension candidates. Maximal degree in co-relation 687. Up to 99 conditions per place. [2022-12-13 14:42:44,474 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 29 selfloop transitions, 25 changer transitions 2/56 dead transitions. [2022-12-13 14:42:44,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 507 flow [2022-12-13 14:42:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:42:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 14:42:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1086 transitions. [2022-12-13 14:42:44,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47465034965034963 [2022-12-13 14:42:44,476 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1086 transitions. [2022-12-13 14:42:44,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1086 transitions. [2022-12-13 14:42:44,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:44,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1086 transitions. [2022-12-13 14:42:44,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 135.75) internal successors, (1086), 8 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:44,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 286.0) internal successors, (2574), 9 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:44,480 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 286.0) internal successors, (2574), 9 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:44,480 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 317 flow. Second operand 8 states and 1086 transitions. [2022-12-13 14:42:44,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 507 flow [2022-12-13 14:42:44,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 56 transitions, 453 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-13 14:42:44,482 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 373 flow [2022-12-13 14:42:44,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=373, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2022-12-13 14:42:44,483 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2022-12-13 14:42:44,483 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 373 flow [2022-12-13 14:42:44,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 130.875) internal successors, (1047), 8 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:44,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:44,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:44,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:42:44,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2027243088, now seen corresponding path program 2 times [2022-12-13 14:42:44,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:44,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410780915] [2022-12-13 14:42:44,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:44,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:44,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410780915] [2022-12-13 14:42:44,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410780915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:44,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:44,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:44,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021640839] [2022-12-13 14:42:44,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:44,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:42:44,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:44,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:42:44,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:42:44,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 14:42:44,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 373 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:44,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:44,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 14:42:44,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:45,108 INFO L130 PetriNetUnfolder]: 89/179 cut-off events. [2022-12-13 14:42:45,108 INFO L131 PetriNetUnfolder]: For 430/430 co-relation queries the response was YES. [2022-12-13 14:42:45,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 179 events. 89/179 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 586 event pairs, 12 based on Foata normal form. 8/185 useless extension candidates. Maximal degree in co-relation 623. Up to 92 conditions per place. [2022-12-13 14:42:45,109 INFO L137 encePairwiseOnDemand]: 278/286 looper letters, 25 selfloop transitions, 22 changer transitions 2/49 dead transitions. [2022-12-13 14:42:45,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 49 transitions, 474 flow [2022-12-13 14:42:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:42:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:42:45,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 826 transitions. [2022-12-13 14:42:45,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4813519813519814 [2022-12-13 14:42:45,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 826 transitions. [2022-12-13 14:42:45,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 826 transitions. [2022-12-13 14:42:45,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:45,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 826 transitions. [2022-12-13 14:42:45,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.66666666666666) internal successors, (826), 6 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:45,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:45,129 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:45,129 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 373 flow. Second operand 6 states and 826 transitions. [2022-12-13 14:42:45,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 49 transitions, 474 flow [2022-12-13 14:42:45,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 49 transitions, 439 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-12-13 14:42:45,131 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 388 flow [2022-12-13 14:42:45,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2022-12-13 14:42:45,131 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 32 predicate places. [2022-12-13 14:42:45,131 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 388 flow [2022-12-13 14:42:45,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:45,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:45,132 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:45,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:42:45,132 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1736523771, now seen corresponding path program 1 times [2022-12-13 14:42:45,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:45,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939437751] [2022-12-13 14:42:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:45,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:45,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:45,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939437751] [2022-12-13 14:42:45,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939437751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:45,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:45,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:45,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187479911] [2022-12-13 14:42:45,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:45,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:45,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:45,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:45,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:46,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:46,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 388 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:46,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:46,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:46,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:46,660 INFO L130 PetriNetUnfolder]: 122/249 cut-off events. [2022-12-13 14:42:46,660 INFO L131 PetriNetUnfolder]: For 694/694 co-relation queries the response was YES. [2022-12-13 14:42:46,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 249 events. 122/249 cut-off events. For 694/694 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 994 event pairs, 5 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 861. Up to 87 conditions per place. [2022-12-13 14:42:46,662 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 41 selfloop transitions, 38 changer transitions 10/89 dead transitions. [2022-12-13 14:42:46,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 754 flow [2022-12-13 14:42:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:42:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:42:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2140 transitions. [2022-12-13 14:42:46,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46765734265734266 [2022-12-13 14:42:46,665 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2140 transitions. [2022-12-13 14:42:46,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2140 transitions. [2022-12-13 14:42:46,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:46,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2140 transitions. [2022-12-13 14:42:46,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 133.75) internal successors, (2140), 16 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:46,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:46,672 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:46,672 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 388 flow. Second operand 16 states and 2140 transitions. [2022-12-13 14:42:46,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 754 flow [2022-12-13 14:42:46,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 89 transitions, 672 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-12-13 14:42:46,675 INFO L231 Difference]: Finished difference. Result has 74 places, 56 transitions, 509 flow [2022-12-13 14:42:46,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=509, PETRI_PLACES=74, PETRI_TRANSITIONS=56} [2022-12-13 14:42:46,675 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 45 predicate places. [2022-12-13 14:42:46,676 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 56 transitions, 509 flow [2022-12-13 14:42:46,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:46,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:46,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:46,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 14:42:46,677 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:46,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:46,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1736523770, now seen corresponding path program 1 times [2022-12-13 14:42:46,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:46,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186942311] [2022-12-13 14:42:46,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:46,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:46,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:46,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186942311] [2022-12-13 14:42:46,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186942311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:46,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:46,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:46,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397341988] [2022-12-13 14:42:46,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:46,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:42:46,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:46,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:42:46,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:42:47,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 286 [2022-12-13 14:42:47,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 56 transitions, 509 flow. Second operand has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:47,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:47,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 286 [2022-12-13 14:42:47,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:47,250 INFO L130 PetriNetUnfolder]: 122/300 cut-off events. [2022-12-13 14:42:47,250 INFO L131 PetriNetUnfolder]: For 838/838 co-relation queries the response was YES. [2022-12-13 14:42:47,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 300 events. 122/300 cut-off events. For 838/838 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1449 event pairs, 26 based on Foata normal form. 6/302 useless extension candidates. Maximal degree in co-relation 1068. Up to 83 conditions per place. [2022-12-13 14:42:47,252 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 61 selfloop transitions, 26 changer transitions 4/91 dead transitions. [2022-12-13 14:42:47,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 91 transitions, 852 flow [2022-12-13 14:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:42:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 14:42:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1280 transitions. [2022-12-13 14:42:47,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4972804972804973 [2022-12-13 14:42:47,254 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1280 transitions. [2022-12-13 14:42:47,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1280 transitions. [2022-12-13 14:42:47,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:47,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1280 transitions. [2022-12-13 14:42:47,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.22222222222223) internal successors, (1280), 9 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:47,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:47,258 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:47,258 INFO L175 Difference]: Start difference. First operand has 74 places, 56 transitions, 509 flow. Second operand 9 states and 1280 transitions. [2022-12-13 14:42:47,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 91 transitions, 852 flow [2022-12-13 14:42:47,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 771 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-12-13 14:42:47,262 INFO L231 Difference]: Finished difference. Result has 78 places, 63 transitions, 562 flow [2022-12-13 14:42:47,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=562, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2022-12-13 14:42:47,263 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 49 predicate places. [2022-12-13 14:42:47,263 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 562 flow [2022-12-13 14:42:47,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:47,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:47,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:47,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:42:47,263 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash 221056775, now seen corresponding path program 2 times [2022-12-13 14:42:47,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:47,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364416473] [2022-12-13 14:42:47,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:47,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:47,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:47,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364416473] [2022-12-13 14:42:47,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364416473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:47,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:47,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952593008] [2022-12-13 14:42:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:47,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:47,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:47,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:47,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 63 transitions, 562 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:47,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:47,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:47,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:48,434 INFO L130 PetriNetUnfolder]: 167/430 cut-off events. [2022-12-13 14:42:48,434 INFO L131 PetriNetUnfolder]: For 1320/1320 co-relation queries the response was YES. [2022-12-13 14:42:48,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 430 events. 167/430 cut-off events. For 1320/1320 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2485 event pairs, 48 based on Foata normal form. 3/433 useless extension candidates. Maximal degree in co-relation 1573. Up to 178 conditions per place. [2022-12-13 14:42:48,436 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 74 selfloop transitions, 40 changer transitions 6/120 dead transitions. [2022-12-13 14:42:48,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 120 transitions, 1125 flow [2022-12-13 14:42:48,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:42:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 14:42:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1882 transitions. [2022-12-13 14:42:48,438 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47002997002997005 [2022-12-13 14:42:48,438 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1882 transitions. [2022-12-13 14:42:48,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1882 transitions. [2022-12-13 14:42:48,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:48,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1882 transitions. [2022-12-13 14:42:48,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 134.42857142857142) internal successors, (1882), 14 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:48,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:48,444 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:48,444 INFO L175 Difference]: Start difference. First operand has 78 places, 63 transitions, 562 flow. Second operand 14 states and 1882 transitions. [2022-12-13 14:42:48,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 120 transitions, 1125 flow [2022-12-13 14:42:48,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 120 transitions, 1077 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-12-13 14:42:48,449 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 806 flow [2022-12-13 14:42:48,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=806, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2022-12-13 14:42:48,450 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2022-12-13 14:42:48,450 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 806 flow [2022-12-13 14:42:48,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:48,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:48,450 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:48,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:42:48,450 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:48,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash 221056774, now seen corresponding path program 2 times [2022-12-13 14:42:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:48,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8406839] [2022-12-13 14:42:48,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:48,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:48,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:48,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8406839] [2022-12-13 14:42:48,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8406839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:48,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:48,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889852309] [2022-12-13 14:42:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:48,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:42:48,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:48,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:42:48,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:42:48,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 286 [2022-12-13 14:42:48,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 806 flow. Second operand has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:48,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:48,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 286 [2022-12-13 14:42:48,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:49,041 INFO L130 PetriNetUnfolder]: 166/426 cut-off events. [2022-12-13 14:42:49,041 INFO L131 PetriNetUnfolder]: For 1567/1567 co-relation queries the response was YES. [2022-12-13 14:42:49,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1858 conditions, 426 events. 166/426 cut-off events. For 1567/1567 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2429 event pairs, 36 based on Foata normal form. 11/437 useless extension candidates. Maximal degree in co-relation 1667. Up to 153 conditions per place. [2022-12-13 14:42:49,044 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 67 selfloop transitions, 35 changer transitions 3/105 dead transitions. [2022-12-13 14:42:49,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 1127 flow [2022-12-13 14:42:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:42:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 14:42:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1273 transitions. [2022-12-13 14:42:49,046 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49456099456099456 [2022-12-13 14:42:49,046 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1273 transitions. [2022-12-13 14:42:49,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1273 transitions. [2022-12-13 14:42:49,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:49,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1273 transitions. [2022-12-13 14:42:49,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.44444444444446) internal successors, (1273), 9 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:49,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:49,049 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:49,049 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 806 flow. Second operand 9 states and 1273 transitions. [2022-12-13 14:42:49,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 1127 flow [2022-12-13 14:42:49,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 105 transitions, 1041 flow, removed 22 selfloop flow, removed 7 redundant places. [2022-12-13 14:42:49,055 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 855 flow [2022-12-13 14:42:49,055 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=855, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2022-12-13 14:42:49,056 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 67 predicate places. [2022-12-13 14:42:49,056 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 855 flow [2022-12-13 14:42:49,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:49,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:49,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:49,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 14:42:49,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1479123477, now seen corresponding path program 3 times [2022-12-13 14:42:49,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:49,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190361260] [2022-12-13 14:42:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:49,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:49,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190361260] [2022-12-13 14:42:49,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190361260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:49,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:49,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902977706] [2022-12-13 14:42:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:49,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:49,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:49,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:49,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 855 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:49,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:49,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:49,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:50,130 INFO L130 PetriNetUnfolder]: 158/410 cut-off events. [2022-12-13 14:42:50,130 INFO L131 PetriNetUnfolder]: For 1925/1925 co-relation queries the response was YES. [2022-12-13 14:42:50,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1805 conditions, 410 events. 158/410 cut-off events. For 1925/1925 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2311 event pairs, 25 based on Foata normal form. 9/419 useless extension candidates. Maximal degree in co-relation 1610. Up to 197 conditions per place. [2022-12-13 14:42:50,132 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 52 selfloop transitions, 53 changer transitions 7/112 dead transitions. [2022-12-13 14:42:50,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 112 transitions, 1221 flow [2022-12-13 14:42:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 14:42:50,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 14:42:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2266 transitions. [2022-12-13 14:42:50,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4660633484162896 [2022-12-13 14:42:50,135 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2266 transitions. [2022-12-13 14:42:50,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2266 transitions. [2022-12-13 14:42:50,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:50,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2266 transitions. [2022-12-13 14:42:50,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 133.2941176470588) internal successors, (2266), 17 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:50,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:50,141 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:50,141 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 855 flow. Second operand 17 states and 2266 transitions. [2022-12-13 14:42:50,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 112 transitions, 1221 flow [2022-12-13 14:42:50,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 112 transitions, 1155 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-12-13 14:42:50,147 INFO L231 Difference]: Finished difference. Result has 109 places, 87 transitions, 988 flow [2022-12-13 14:42:50,147 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=988, PETRI_PLACES=109, PETRI_TRANSITIONS=87} [2022-12-13 14:42:50,148 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 80 predicate places. [2022-12-13 14:42:50,148 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 87 transitions, 988 flow [2022-12-13 14:42:50,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:50,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:50,148 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:50,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 14:42:50,149 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:50,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1739879442, now seen corresponding path program 1 times [2022-12-13 14:42:50,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:50,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998697514] [2022-12-13 14:42:50,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:50,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:50,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:50,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998697514] [2022-12-13 14:42:50,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998697514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:50,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:50,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246661190] [2022-12-13 14:42:50,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:50,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:50,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:50,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:50,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:50,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 87 transitions, 988 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:50,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:50,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:50,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:51,106 INFO L130 PetriNetUnfolder]: 168/434 cut-off events. [2022-12-13 14:42:51,106 INFO L131 PetriNetUnfolder]: For 2111/2111 co-relation queries the response was YES. [2022-12-13 14:42:51,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 434 events. 168/434 cut-off events. For 2111/2111 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2471 event pairs, 56 based on Foata normal form. 2/436 useless extension candidates. Maximal degree in co-relation 1845. Up to 291 conditions per place. [2022-12-13 14:42:51,108 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 66 selfloop transitions, 34 changer transitions 13/113 dead transitions. [2022-12-13 14:42:51,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 113 transitions, 1376 flow [2022-12-13 14:42:51,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:42:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 14:42:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1735 transitions. [2022-12-13 14:42:51,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4666487358795051 [2022-12-13 14:42:51,111 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1735 transitions. [2022-12-13 14:42:51,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1735 transitions. [2022-12-13 14:42:51,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:51,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1735 transitions. [2022-12-13 14:42:51,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.46153846153845) internal successors, (1735), 13 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:51,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:51,116 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:51,116 INFO L175 Difference]: Start difference. First operand has 109 places, 87 transitions, 988 flow. Second operand 13 states and 1735 transitions. [2022-12-13 14:42:51,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 113 transitions, 1376 flow [2022-12-13 14:42:51,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 113 transitions, 1225 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-12-13 14:42:51,122 INFO L231 Difference]: Finished difference. Result has 111 places, 89 transitions, 968 flow [2022-12-13 14:42:51,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=968, PETRI_PLACES=111, PETRI_TRANSITIONS=89} [2022-12-13 14:42:51,123 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 82 predicate places. [2022-12-13 14:42:51,123 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 89 transitions, 968 flow [2022-12-13 14:42:51,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:51,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:51,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:51,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 14:42:51,124 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash 221046545, now seen corresponding path program 4 times [2022-12-13 14:42:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:51,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553835970] [2022-12-13 14:42:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:51,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:51,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:51,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553835970] [2022-12-13 14:42:51,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553835970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:51,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:51,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:51,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805841083] [2022-12-13 14:42:51,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:51,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:51,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:51,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:51,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:51,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:51,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 89 transitions, 968 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:51,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:51,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:51,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:52,490 INFO L130 PetriNetUnfolder]: 167/422 cut-off events. [2022-12-13 14:42:52,491 INFO L131 PetriNetUnfolder]: For 1702/1702 co-relation queries the response was YES. [2022-12-13 14:42:52,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 422 events. 167/422 cut-off events. For 1702/1702 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2377 event pairs, 33 based on Foata normal form. 6/428 useless extension candidates. Maximal degree in co-relation 1922. Up to 101 conditions per place. [2022-12-13 14:42:52,493 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 62 selfloop transitions, 64 changer transitions 6/132 dead transitions. [2022-12-13 14:42:52,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 1444 flow [2022-12-13 14:42:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 14:42:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 14:42:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2796 transitions. [2022-12-13 14:42:52,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46553446553446554 [2022-12-13 14:42:52,495 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2796 transitions. [2022-12-13 14:42:52,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2796 transitions. [2022-12-13 14:42:52,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:52,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2796 transitions. [2022-12-13 14:42:52,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 133.14285714285714) internal successors, (2796), 21 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:52,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:52,506 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:52,507 INFO L175 Difference]: Start difference. First operand has 111 places, 89 transitions, 968 flow. Second operand 21 states and 2796 transitions. [2022-12-13 14:42:52,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 1444 flow [2022-12-13 14:42:52,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 1370 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-13 14:42:52,512 INFO L231 Difference]: Finished difference. Result has 127 places, 97 transitions, 1173 flow [2022-12-13 14:42:52,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1173, PETRI_PLACES=127, PETRI_TRANSITIONS=97} [2022-12-13 14:42:52,513 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 98 predicate places. [2022-12-13 14:42:52,513 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 97 transitions, 1173 flow [2022-12-13 14:42:52,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:52,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:52,513 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:52,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 14:42:52,514 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 223468265, now seen corresponding path program 5 times [2022-12-13 14:42:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:52,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471123618] [2022-12-13 14:42:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:52,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:52,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:52,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471123618] [2022-12-13 14:42:52,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471123618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:52,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:52,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:52,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008563603] [2022-12-13 14:42:52,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:52,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:52,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:52,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:52,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:53,121 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:53,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 97 transitions, 1173 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:53,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:53,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:53,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:53,553 INFO L130 PetriNetUnfolder]: 176/444 cut-off events. [2022-12-13 14:42:53,553 INFO L131 PetriNetUnfolder]: For 2042/2042 co-relation queries the response was YES. [2022-12-13 14:42:53,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2261 conditions, 444 events. 176/444 cut-off events. For 2042/2042 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2535 event pairs, 32 based on Foata normal form. 3/447 useless extension candidates. Maximal degree in co-relation 2083. Up to 126 conditions per place. [2022-12-13 14:42:53,555 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 56 selfloop transitions, 67 changer transitions 3/126 dead transitions. [2022-12-13 14:42:53,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 126 transitions, 1587 flow [2022-12-13 14:42:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:42:53,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:42:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2130 transitions. [2022-12-13 14:42:53,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46547202797202797 [2022-12-13 14:42:53,558 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2130 transitions. [2022-12-13 14:42:53,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2130 transitions. [2022-12-13 14:42:53,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:53,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2130 transitions. [2022-12-13 14:42:53,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 133.125) internal successors, (2130), 16 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:53,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:53,562 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:53,562 INFO L175 Difference]: Start difference. First operand has 127 places, 97 transitions, 1173 flow. Second operand 16 states and 2130 transitions. [2022-12-13 14:42:53,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 126 transitions, 1587 flow [2022-12-13 14:42:53,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 126 transitions, 1447 flow, removed 18 selfloop flow, removed 15 redundant places. [2022-12-13 14:42:53,571 INFO L231 Difference]: Finished difference. Result has 131 places, 103 transitions, 1311 flow [2022-12-13 14:42:53,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1311, PETRI_PLACES=131, PETRI_TRANSITIONS=103} [2022-12-13 14:42:53,571 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 102 predicate places. [2022-12-13 14:42:53,571 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 103 transitions, 1311 flow [2022-12-13 14:42:53,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:53,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:53,572 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:53,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 14:42:53,572 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1739868051, now seen corresponding path program 6 times [2022-12-13 14:42:53,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:53,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087308184] [2022-12-13 14:42:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:53,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:54,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:54,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087308184] [2022-12-13 14:42:54,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087308184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:54,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:54,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:54,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628476741] [2022-12-13 14:42:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:54,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:54,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:54,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:54,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 103 transitions, 1311 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:54,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:54,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:54,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:54,692 INFO L130 PetriNetUnfolder]: 174/437 cut-off events. [2022-12-13 14:42:54,692 INFO L131 PetriNetUnfolder]: For 2361/2361 co-relation queries the response was YES. [2022-12-13 14:42:54,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2303 conditions, 437 events. 174/437 cut-off events. For 2361/2361 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2438 event pairs, 34 based on Foata normal form. 3/440 useless extension candidates. Maximal degree in co-relation 2116. Up to 257 conditions per place. [2022-12-13 14:42:54,694 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 60 selfloop transitions, 58 changer transitions 3/121 dead transitions. [2022-12-13 14:42:54,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 121 transitions, 1607 flow [2022-12-13 14:42:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:42:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 14:42:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1736 transitions. [2022-12-13 14:42:54,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4669176976869285 [2022-12-13 14:42:54,696 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1736 transitions. [2022-12-13 14:42:54,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1736 transitions. [2022-12-13 14:42:54,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:54,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1736 transitions. [2022-12-13 14:42:54,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.53846153846155) internal successors, (1736), 13 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:54,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:54,700 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:54,700 INFO L175 Difference]: Start difference. First operand has 131 places, 103 transitions, 1311 flow. Second operand 13 states and 1736 transitions. [2022-12-13 14:42:54,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 121 transitions, 1607 flow [2022-12-13 14:42:54,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 121 transitions, 1496 flow, removed 9 selfloop flow, removed 14 redundant places. [2022-12-13 14:42:54,709 INFO L231 Difference]: Finished difference. Result has 130 places, 103 transitions, 1321 flow [2022-12-13 14:42:54,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1321, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2022-12-13 14:42:54,709 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2022-12-13 14:42:54,709 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 103 transitions, 1321 flow [2022-12-13 14:42:54,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:54,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:54,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:54,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 14:42:54,710 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:54,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1731345762, now seen corresponding path program 2 times [2022-12-13 14:42:54,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:54,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061052049] [2022-12-13 14:42:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:54,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:55,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061052049] [2022-12-13 14:42:55,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061052049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:55,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:55,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362390061] [2022-12-13 14:42:55,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:55,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:55,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:55,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:55,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:55,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:55,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 103 transitions, 1321 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:55,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:55,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:55,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:55,824 INFO L130 PetriNetUnfolder]: 173/473 cut-off events. [2022-12-13 14:42:55,824 INFO L131 PetriNetUnfolder]: For 2615/2615 co-relation queries the response was YES. [2022-12-13 14:42:55,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 473 events. 173/473 cut-off events. For 2615/2615 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2892 event pairs, 57 based on Foata normal form. 6/479 useless extension candidates. Maximal degree in co-relation 2271. Up to 287 conditions per place. [2022-12-13 14:42:55,828 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 75 selfloop transitions, 47 changer transitions 23/145 dead transitions. [2022-12-13 14:42:55,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 145 transitions, 1923 flow [2022-12-13 14:42:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:42:55,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:42:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2134 transitions. [2022-12-13 14:42:55,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46634615384615385 [2022-12-13 14:42:55,830 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2134 transitions. [2022-12-13 14:42:55,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2134 transitions. [2022-12-13 14:42:55,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:55,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2134 transitions. [2022-12-13 14:42:55,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:55,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:55,834 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:55,835 INFO L175 Difference]: Start difference. First operand has 130 places, 103 transitions, 1321 flow. Second operand 16 states and 2134 transitions. [2022-12-13 14:42:55,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 145 transitions, 1923 flow [2022-12-13 14:42:55,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 145 transitions, 1846 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-12-13 14:42:55,844 INFO L231 Difference]: Finished difference. Result has 140 places, 106 transitions, 1383 flow [2022-12-13 14:42:55,844 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1383, PETRI_PLACES=140, PETRI_TRANSITIONS=106} [2022-12-13 14:42:55,844 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 111 predicate places. [2022-12-13 14:42:55,844 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 106 transitions, 1383 flow [2022-12-13 14:42:55,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:55,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:55,844 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:55,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 14:42:55,845 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:55,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1731345761, now seen corresponding path program 1 times [2022-12-13 14:42:55,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:55,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908024963] [2022-12-13 14:42:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:55,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:56,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908024963] [2022-12-13 14:42:56,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908024963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:56,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:56,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604809712] [2022-12-13 14:42:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:42:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:42:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:42:56,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 286 [2022-12-13 14:42:56,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 106 transitions, 1383 flow. Second operand has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:56,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:56,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 286 [2022-12-13 14:42:56,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:56,398 INFO L130 PetriNetUnfolder]: 117/338 cut-off events. [2022-12-13 14:42:56,398 INFO L131 PetriNetUnfolder]: For 1924/1924 co-relation queries the response was YES. [2022-12-13 14:42:56,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 338 events. 117/338 cut-off events. For 1924/1924 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1914 event pairs, 23 based on Foata normal form. 7/345 useless extension candidates. Maximal degree in co-relation 1864. Up to 149 conditions per place. [2022-12-13 14:42:56,400 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 48 selfloop transitions, 66 changer transitions 5/119 dead transitions. [2022-12-13 14:42:56,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 119 transitions, 1649 flow [2022-12-13 14:42:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:42:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:42:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1404 transitions. [2022-12-13 14:42:56,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2022-12-13 14:42:56,402 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1404 transitions. [2022-12-13 14:42:56,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1404 transitions. [2022-12-13 14:42:56,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:56,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1404 transitions. [2022-12-13 14:42:56,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.4) internal successors, (1404), 10 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:56,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:56,404 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:56,404 INFO L175 Difference]: Start difference. First operand has 140 places, 106 transitions, 1383 flow. Second operand 10 states and 1404 transitions. [2022-12-13 14:42:56,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 119 transitions, 1649 flow [2022-12-13 14:42:56,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 119 transitions, 1533 flow, removed 5 selfloop flow, removed 12 redundant places. [2022-12-13 14:42:56,413 INFO L231 Difference]: Finished difference. Result has 137 places, 101 transitions, 1343 flow [2022-12-13 14:42:56,413 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1343, PETRI_PLACES=137, PETRI_TRANSITIONS=101} [2022-12-13 14:42:56,413 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2022-12-13 14:42:56,413 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 101 transitions, 1343 flow [2022-12-13 14:42:56,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:56,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:56,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:56,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 14:42:56,414 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:56,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1736513540, now seen corresponding path program 3 times [2022-12-13 14:42:56,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:56,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010766085] [2022-12-13 14:42:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:56,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:56,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010766085] [2022-12-13 14:42:56,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010766085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:56,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:56,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001457182] [2022-12-13 14:42:56,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:56,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:56,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:57,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:42:57,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 101 transitions, 1343 flow. Second operand has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:57,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:57,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:42:57,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:57,281 INFO L130 PetriNetUnfolder]: 101/297 cut-off events. [2022-12-13 14:42:57,282 INFO L131 PetriNetUnfolder]: For 1986/1986 co-relation queries the response was YES. [2022-12-13 14:42:57,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 297 events. 101/297 cut-off events. For 1986/1986 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1607 event pairs, 37 based on Foata normal form. 3/300 useless extension candidates. Maximal degree in co-relation 1685. Up to 136 conditions per place. [2022-12-13 14:42:57,283 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 68 selfloop transitions, 43 changer transitions 0/111 dead transitions. [2022-12-13 14:42:57,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 111 transitions, 1563 flow [2022-12-13 14:42:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:42:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:42:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1574 transitions. [2022-12-13 14:42:57,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4586247086247086 [2022-12-13 14:42:57,286 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1574 transitions. [2022-12-13 14:42:57,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1574 transitions. [2022-12-13 14:42:57,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:57,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1574 transitions. [2022-12-13 14:42:57,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 131.16666666666666) internal successors, (1574), 12 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:57,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:57,292 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:57,292 INFO L175 Difference]: Start difference. First operand has 137 places, 101 transitions, 1343 flow. Second operand 12 states and 1574 transitions. [2022-12-13 14:42:57,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 111 transitions, 1563 flow [2022-12-13 14:42:57,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 111 transitions, 1444 flow, removed 10 selfloop flow, removed 13 redundant places. [2022-12-13 14:42:57,304 INFO L231 Difference]: Finished difference. Result has 132 places, 99 transitions, 1281 flow [2022-12-13 14:42:57,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1281, PETRI_PLACES=132, PETRI_TRANSITIONS=99} [2022-12-13 14:42:57,304 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 103 predicate places. [2022-12-13 14:42:57,304 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 99 transitions, 1281 flow [2022-12-13 14:42:57,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:57,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:57,305 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:57,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 14:42:57,305 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1731325302, now seen corresponding path program 3 times [2022-12-13 14:42:57,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:57,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598045334] [2022-12-13 14:42:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:57,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:57,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:57,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598045334] [2022-12-13 14:42:57,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598045334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:57,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:57,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:57,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145157748] [2022-12-13 14:42:57,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:57,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:57,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:57,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:57,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:42:57,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 99 transitions, 1281 flow. Second operand has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:57,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:57,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:42:57,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:58,349 INFO L130 PetriNetUnfolder]: 100/294 cut-off events. [2022-12-13 14:42:58,350 INFO L131 PetriNetUnfolder]: For 1868/1868 co-relation queries the response was YES. [2022-12-13 14:42:58,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 294 events. 100/294 cut-off events. For 1868/1868 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1591 event pairs, 31 based on Foata normal form. 2/296 useless extension candidates. Maximal degree in co-relation 1523. Up to 189 conditions per place. [2022-12-13 14:42:58,351 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 67 selfloop transitions, 42 changer transitions 1/110 dead transitions. [2022-12-13 14:42:58,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 110 transitions, 1519 flow [2022-12-13 14:42:58,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:42:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 14:42:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1827 transitions. [2022-12-13 14:42:58,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4562937062937063 [2022-12-13 14:42:58,353 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1827 transitions. [2022-12-13 14:42:58,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1827 transitions. [2022-12-13 14:42:58,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:58,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1827 transitions. [2022-12-13 14:42:58,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.5) internal successors, (1827), 14 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:58,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:58,356 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:58,357 INFO L175 Difference]: Start difference. First operand has 132 places, 99 transitions, 1281 flow. Second operand 14 states and 1827 transitions. [2022-12-13 14:42:58,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 110 transitions, 1519 flow [2022-12-13 14:42:58,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 110 transitions, 1435 flow, removed 6 selfloop flow, removed 8 redundant places. [2022-12-13 14:42:58,363 INFO L231 Difference]: Finished difference. Result has 137 places, 98 transitions, 1270 flow [2022-12-13 14:42:58,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1186, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1270, PETRI_PLACES=137, PETRI_TRANSITIONS=98} [2022-12-13 14:42:58,363 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2022-12-13 14:42:58,364 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 98 transitions, 1270 flow [2022-12-13 14:42:58,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:58,364 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:58,364 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:58,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 14:42:58,364 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash 223468264, now seen corresponding path program 4 times [2022-12-13 14:42:58,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:58,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113146139] [2022-12-13 14:42:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:58,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:58,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113146139] [2022-12-13 14:42:58,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113146139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:58,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:58,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:58,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801679292] [2022-12-13 14:42:58,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:58,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:58,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:58,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:58,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:42:58,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:42:58,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 98 transitions, 1270 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:58,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:42:58,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:42:58,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:42:59,389 INFO L130 PetriNetUnfolder]: 97/288 cut-off events. [2022-12-13 14:42:59,389 INFO L131 PetriNetUnfolder]: For 1825/1825 co-relation queries the response was YES. [2022-12-13 14:42:59,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1665 conditions, 288 events. 97/288 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1550 event pairs, 13 based on Foata normal form. 3/291 useless extension candidates. Maximal degree in co-relation 1456. Up to 118 conditions per place. [2022-12-13 14:42:59,391 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 48 selfloop transitions, 63 changer transitions 0/111 dead transitions. [2022-12-13 14:42:59,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 111 transitions, 1497 flow [2022-12-13 14:42:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:42:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 14:42:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1864 transitions. [2022-12-13 14:42:59,393 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46553446553446554 [2022-12-13 14:42:59,393 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1864 transitions. [2022-12-13 14:42:59,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1864 transitions. [2022-12-13 14:42:59,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:42:59,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1864 transitions. [2022-12-13 14:42:59,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 133.14285714285714) internal successors, (1864), 14 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:59,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:59,400 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:59,400 INFO L175 Difference]: Start difference. First operand has 137 places, 98 transitions, 1270 flow. Second operand 14 states and 1864 transitions. [2022-12-13 14:42:59,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 111 transitions, 1497 flow [2022-12-13 14:42:59,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 111 transitions, 1383 flow, removed 0 selfloop flow, removed 14 redundant places. [2022-12-13 14:42:59,409 INFO L231 Difference]: Finished difference. Result has 136 places, 96 transitions, 1248 flow [2022-12-13 14:42:59,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1248, PETRI_PLACES=136, PETRI_TRANSITIONS=96} [2022-12-13 14:42:59,410 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 107 predicate places. [2022-12-13 14:42:59,410 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 96 transitions, 1248 flow [2022-12-13 14:42:59,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:59,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:42:59,411 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:42:59,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 14:42:59,411 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:42:59,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:59,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1497891808, now seen corresponding path program 5 times [2022-12-13 14:42:59,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:59,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134412457] [2022-12-13 14:42:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:59,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:59,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:59,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:59,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134412457] [2022-12-13 14:42:59,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134412457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:59,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:59,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:42:59,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745519563] [2022-12-13 14:42:59,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:59,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:42:59,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:59,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:42:59,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:00,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:43:00,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 96 transitions, 1248 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:00,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:00,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:43:00,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:00,675 INFO L130 PetriNetUnfolder]: 94/282 cut-off events. [2022-12-13 14:43:00,675 INFO L131 PetriNetUnfolder]: For 1682/1682 co-relation queries the response was YES. [2022-12-13 14:43:00,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 282 events. 94/282 cut-off events. For 1682/1682 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1528 event pairs, 12 based on Foata normal form. 3/285 useless extension candidates. Maximal degree in co-relation 1441. Up to 126 conditions per place. [2022-12-13 14:43:00,676 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 55 selfloop transitions, 60 changer transitions 1/116 dead transitions. [2022-12-13 14:43:00,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 116 transitions, 1502 flow [2022-12-13 14:43:00,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 14:43:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 14:43:00,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2392 transitions. [2022-12-13 14:43:00,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46464646464646464 [2022-12-13 14:43:00,678 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2392 transitions. [2022-12-13 14:43:00,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2392 transitions. [2022-12-13 14:43:00,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:00,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2392 transitions. [2022-12-13 14:43:00,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 132.88888888888889) internal successors, (2392), 18 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:00,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:00,683 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:00,683 INFO L175 Difference]: Start difference. First operand has 136 places, 96 transitions, 1248 flow. Second operand 18 states and 2392 transitions. [2022-12-13 14:43:00,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 116 transitions, 1502 flow [2022-12-13 14:43:00,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 116 transitions, 1392 flow, removed 7 selfloop flow, removed 13 redundant places. [2022-12-13 14:43:00,690 INFO L231 Difference]: Finished difference. Result has 140 places, 94 transitions, 1224 flow [2022-12-13 14:43:00,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1224, PETRI_PLACES=140, PETRI_TRANSITIONS=94} [2022-12-13 14:43:00,690 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 111 predicate places. [2022-12-13 14:43:00,690 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 94 transitions, 1224 flow [2022-12-13 14:43:00,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:00,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:00,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:00,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 14:43:00,691 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash 239814874, now seen corresponding path program 6 times [2022-12-13 14:43:00,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:00,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572094683] [2022-12-13 14:43:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:01,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572094683] [2022-12-13 14:43:01,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572094683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:01,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:01,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082622505] [2022-12-13 14:43:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:01,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:01,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:01,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 94 transitions, 1224 flow. Second operand has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:01,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:01,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:01,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:01,770 INFO L130 PetriNetUnfolder]: 92/275 cut-off events. [2022-12-13 14:43:01,770 INFO L131 PetriNetUnfolder]: For 1776/1776 co-relation queries the response was YES. [2022-12-13 14:43:01,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 275 events. 92/275 cut-off events. For 1776/1776 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1447 event pairs, 21 based on Foata normal form. 3/278 useless extension candidates. Maximal degree in co-relation 1396. Up to 140 conditions per place. [2022-12-13 14:43:01,771 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 66 selfloop transitions, 41 changer transitions 1/108 dead transitions. [2022-12-13 14:43:01,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 108 transitions, 1466 flow [2022-12-13 14:43:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:43:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:43:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1580 transitions. [2022-12-13 14:43:01,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4603729603729604 [2022-12-13 14:43:01,773 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1580 transitions. [2022-12-13 14:43:01,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1580 transitions. [2022-12-13 14:43:01,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:01,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1580 transitions. [2022-12-13 14:43:01,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 131.66666666666666) internal successors, (1580), 12 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:01,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:01,776 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:01,776 INFO L175 Difference]: Start difference. First operand has 140 places, 94 transitions, 1224 flow. Second operand 12 states and 1580 transitions. [2022-12-13 14:43:01,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 108 transitions, 1466 flow [2022-12-13 14:43:01,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 108 transitions, 1318 flow, removed 4 selfloop flow, removed 17 redundant places. [2022-12-13 14:43:01,782 INFO L231 Difference]: Finished difference. Result has 134 places, 93 transitions, 1149 flow [2022-12-13 14:43:01,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1149, PETRI_PLACES=134, PETRI_TRANSITIONS=93} [2022-12-13 14:43:01,782 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2022-12-13 14:43:01,782 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 93 transitions, 1149 flow [2022-12-13 14:43:01,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:01,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:01,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:01,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 14:43:01,783 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1731325301, now seen corresponding path program 2 times [2022-12-13 14:43:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:01,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819787485] [2022-12-13 14:43:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:01,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:02,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:02,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819787485] [2022-12-13 14:43:02,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819787485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:02,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:02,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:02,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940771031] [2022-12-13 14:43:02,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:02,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:02,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:02,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:02,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:02,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 93 transitions, 1149 flow. Second operand has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:02,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:02,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:02,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:02,659 INFO L130 PetriNetUnfolder]: 91/272 cut-off events. [2022-12-13 14:43:02,659 INFO L131 PetriNetUnfolder]: For 1695/1695 co-relation queries the response was YES. [2022-12-13 14:43:02,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 272 events. 91/272 cut-off events. For 1695/1695 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1423 event pairs, 29 based on Foata normal form. 2/274 useless extension candidates. Maximal degree in co-relation 1336. Up to 170 conditions per place. [2022-12-13 14:43:02,661 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 59 selfloop transitions, 36 changer transitions 3/98 dead transitions. [2022-12-13 14:43:02,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 98 transitions, 1355 flow [2022-12-13 14:43:02,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:43:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 14:43:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1177 transitions. [2022-12-13 14:43:02,663 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45726495726495725 [2022-12-13 14:43:02,663 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1177 transitions. [2022-12-13 14:43:02,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1177 transitions. [2022-12-13 14:43:02,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:02,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1177 transitions. [2022-12-13 14:43:02,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.77777777777777) internal successors, (1177), 9 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:02,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:02,666 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:02,666 INFO L175 Difference]: Start difference. First operand has 134 places, 93 transitions, 1149 flow. Second operand 9 states and 1177 transitions. [2022-12-13 14:43:02,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 98 transitions, 1355 flow [2022-12-13 14:43:02,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 98 transitions, 1291 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-13 14:43:02,671 INFO L231 Difference]: Finished difference. Result has 132 places, 90 transitions, 1131 flow [2022-12-13 14:43:02,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1131, PETRI_PLACES=132, PETRI_TRANSITIONS=90} [2022-12-13 14:43:02,672 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 103 predicate places. [2022-12-13 14:43:02,672 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 90 transitions, 1131 flow [2022-12-13 14:43:02,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:02,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:02,672 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:02,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 14:43:02,672 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1734505671, now seen corresponding path program 7 times [2022-12-13 14:43:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:02,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582180189] [2022-12-13 14:43:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:03,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:03,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582180189] [2022-12-13 14:43:03,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582180189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:03,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:03,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:03,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722391945] [2022-12-13 14:43:03,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:03,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:03,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:03,261 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:43:03,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 90 transitions, 1131 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:03,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:03,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:43:03,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:03,536 INFO L130 PetriNetUnfolder]: 87/259 cut-off events. [2022-12-13 14:43:03,536 INFO L131 PetriNetUnfolder]: For 1608/1608 co-relation queries the response was YES. [2022-12-13 14:43:03,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 259 events. 87/259 cut-off events. For 1608/1608 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1331 event pairs, 22 based on Foata normal form. 3/262 useless extension candidates. Maximal degree in co-relation 1339. Up to 137 conditions per place. [2022-12-13 14:43:03,538 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 55 selfloop transitions, 44 changer transitions 0/99 dead transitions. [2022-12-13 14:43:03,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 99 transitions, 1327 flow [2022-12-13 14:43:03,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1463 transitions. [2022-12-13 14:43:03,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46503496503496505 [2022-12-13 14:43:03,539 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1463 transitions. [2022-12-13 14:43:03,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1463 transitions. [2022-12-13 14:43:03,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:03,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1463 transitions. [2022-12-13 14:43:03,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:03,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:03,542 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:03,542 INFO L175 Difference]: Start difference. First operand has 132 places, 90 transitions, 1131 flow. Second operand 11 states and 1463 transitions. [2022-12-13 14:43:03,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 99 transitions, 1327 flow [2022-12-13 14:43:03,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 99 transitions, 1187 flow, removed 3 selfloop flow, removed 12 redundant places. [2022-12-13 14:43:03,547 INFO L231 Difference]: Finished difference. Result has 127 places, 88 transitions, 1053 flow [2022-12-13 14:43:03,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=965, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1053, PETRI_PLACES=127, PETRI_TRANSITIONS=88} [2022-12-13 14:43:03,547 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 98 predicate places. [2022-12-13 14:43:03,547 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 88 transitions, 1053 flow [2022-12-13 14:43:03,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:03,548 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:03,548 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:03,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 14:43:03,548 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:03,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1475757576, now seen corresponding path program 4 times [2022-12-13 14:43:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:03,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963685853] [2022-12-13 14:43:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:03,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:03,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963685853] [2022-12-13 14:43:03,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963685853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:03,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:03,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813600801] [2022-12-13 14:43:03,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:03,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:03,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:03,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:04,082 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:43:04,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 88 transitions, 1053 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:04,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:04,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:43:04,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:04,378 INFO L130 PetriNetUnfolder]: 86/256 cut-off events. [2022-12-13 14:43:04,378 INFO L131 PetriNetUnfolder]: For 1480/1480 co-relation queries the response was YES. [2022-12-13 14:43:04,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 256 events. 86/256 cut-off events. For 1480/1480 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1315 event pairs, 28 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 1230. Up to 175 conditions per place. [2022-12-13 14:43:04,379 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 56 selfloop transitions, 34 changer transitions 6/96 dead transitions. [2022-12-13 14:43:04,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 96 transitions, 1260 flow [2022-12-13 14:43:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:43:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:43:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1332 transitions. [2022-12-13 14:43:04,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46573426573426574 [2022-12-13 14:43:04,381 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1332 transitions. [2022-12-13 14:43:04,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1332 transitions. [2022-12-13 14:43:04,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:04,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1332 transitions. [2022-12-13 14:43:04,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.2) internal successors, (1332), 10 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:04,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:04,383 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:04,384 INFO L175 Difference]: Start difference. First operand has 127 places, 88 transitions, 1053 flow. Second operand 10 states and 1332 transitions. [2022-12-13 14:43:04,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 96 transitions, 1260 flow [2022-12-13 14:43:04,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 96 transitions, 1114 flow, removed 3 selfloop flow, removed 11 redundant places. [2022-12-13 14:43:04,388 INFO L231 Difference]: Finished difference. Result has 123 places, 85 transitions, 951 flow [2022-12-13 14:43:04,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=951, PETRI_PLACES=123, PETRI_TRANSITIONS=85} [2022-12-13 14:43:04,388 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 94 predicate places. [2022-12-13 14:43:04,388 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 85 transitions, 951 flow [2022-12-13 14:43:04,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:04,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:04,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:04,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 14:43:04,389 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash -366988181, now seen corresponding path program 8 times [2022-12-13 14:43:04,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:04,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841906975] [2022-12-13 14:43:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:04,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:04,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:04,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841906975] [2022-12-13 14:43:04,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841906975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:04,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:04,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426275242] [2022-12-13 14:43:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:04,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:04,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:04,901 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-12-13 14:43:04,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 85 transitions, 951 flow. Second operand has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:04,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:04,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-12-13 14:43:04,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:05,266 INFO L130 PetriNetUnfolder]: 76/229 cut-off events. [2022-12-13 14:43:05,266 INFO L131 PetriNetUnfolder]: For 1173/1173 co-relation queries the response was YES. [2022-12-13 14:43:05,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1241 conditions, 229 events. 76/229 cut-off events. For 1173/1173 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1139 event pairs, 8 based on Foata normal form. 3/232 useless extension candidates. Maximal degree in co-relation 1095. Up to 61 conditions per place. [2022-12-13 14:43:05,267 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 40 selfloop transitions, 61 changer transitions 0/101 dead transitions. [2022-12-13 14:43:05,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 101 transitions, 1225 flow [2022-12-13 14:43:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:43:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:43:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2112 transitions. [2022-12-13 14:43:05,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-12-13 14:43:05,269 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2112 transitions. [2022-12-13 14:43:05,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2112 transitions. [2022-12-13 14:43:05,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:05,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2112 transitions. [2022-12-13 14:43:05,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 132.0) internal successors, (2112), 16 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:05,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:05,273 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:05,273 INFO L175 Difference]: Start difference. First operand has 123 places, 85 transitions, 951 flow. Second operand 16 states and 2112 transitions. [2022-12-13 14:43:05,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 101 transitions, 1225 flow [2022-12-13 14:43:05,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 101 transitions, 1157 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 14:43:05,277 INFO L231 Difference]: Finished difference. Result has 129 places, 87 transitions, 1080 flow [2022-12-13 14:43:05,277 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1080, PETRI_PLACES=129, PETRI_TRANSITIONS=87} [2022-12-13 14:43:05,278 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 100 predicate places. [2022-12-13 14:43:05,278 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 87 transitions, 1080 flow [2022-12-13 14:43:05,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:05,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:05,278 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:05,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 14:43:05,278 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:05,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash -366988182, now seen corresponding path program 7 times [2022-12-13 14:43:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232023636] [2022-12-13 14:43:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:05,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232023636] [2022-12-13 14:43:05,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232023636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:05,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:05,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:43:05,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473081782] [2022-12-13 14:43:05,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:05,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:43:05,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:05,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:43:05,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:43:05,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 14:43:05,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 87 transitions, 1080 flow. Second operand has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:05,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:05,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 14:43:05,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:06,050 INFO L130 PetriNetUnfolder]: 74/222 cut-off events. [2022-12-13 14:43:06,050 INFO L131 PetriNetUnfolder]: For 1350/1350 co-relation queries the response was YES. [2022-12-13 14:43:06,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 222 events. 74/222 cut-off events. For 1350/1350 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1085 event pairs, 21 based on Foata normal form. 3/225 useless extension candidates. Maximal degree in co-relation 1169. Up to 66 conditions per place. [2022-12-13 14:43:06,052 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 45 selfloop transitions, 47 changer transitions 0/92 dead transitions. [2022-12-13 14:43:06,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 92 transitions, 1256 flow [2022-12-13 14:43:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:43:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 14:43:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1201 transitions. [2022-12-13 14:43:06,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4665889665889666 [2022-12-13 14:43:06,053 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1201 transitions. [2022-12-13 14:43:06,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1201 transitions. [2022-12-13 14:43:06,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:06,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1201 transitions. [2022-12-13 14:43:06,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.44444444444446) internal successors, (1201), 9 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:06,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:06,056 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:06,056 INFO L175 Difference]: Start difference. First operand has 129 places, 87 transitions, 1080 flow. Second operand 9 states and 1201 transitions. [2022-12-13 14:43:06,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 92 transitions, 1256 flow [2022-12-13 14:43:06,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 92 transitions, 1148 flow, removed 3 selfloop flow, removed 12 redundant places. [2022-12-13 14:43:06,060 INFO L231 Difference]: Finished difference. Result has 125 places, 85 transitions, 1042 flow [2022-12-13 14:43:06,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1042, PETRI_PLACES=125, PETRI_TRANSITIONS=85} [2022-12-13 14:43:06,060 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 96 predicate places. [2022-12-13 14:43:06,061 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 85 transitions, 1042 flow [2022-12-13 14:43:06,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:06,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:06,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:06,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 14:43:06,061 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:06,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:06,061 INFO L85 PathProgramCache]: Analyzing trace with hash 164467283, now seen corresponding path program 1 times [2022-12-13 14:43:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:06,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138690769] [2022-12-13 14:43:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:06,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:06,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:06,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138690769] [2022-12-13 14:43:06,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138690769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:06,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:06,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443441734] [2022-12-13 14:43:06,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:06,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:06,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:06,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:06,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:07,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:07,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 85 transitions, 1042 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:07,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:07,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:07,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:07,965 INFO L130 PetriNetUnfolder]: 76/238 cut-off events. [2022-12-13 14:43:07,965 INFO L131 PetriNetUnfolder]: For 1442/1442 co-relation queries the response was YES. [2022-12-13 14:43:07,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 238 events. 76/238 cut-off events. For 1442/1442 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1215 event pairs, 13 based on Foata normal form. 2/240 useless extension candidates. Maximal degree in co-relation 1218. Up to 57 conditions per place. [2022-12-13 14:43:07,968 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 58 selfloop transitions, 54 changer transitions 0/112 dead transitions. [2022-12-13 14:43:07,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 112 transitions, 1428 flow [2022-12-13 14:43:07,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:43:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 14:43:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1845 transitions. [2022-12-13 14:43:07,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43006993006993005 [2022-12-13 14:43:07,971 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1845 transitions. [2022-12-13 14:43:07,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1845 transitions. [2022-12-13 14:43:07,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:07,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1845 transitions. [2022-12-13 14:43:07,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 123.0) internal successors, (1845), 15 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:07,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:07,978 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:07,978 INFO L175 Difference]: Start difference. First operand has 125 places, 85 transitions, 1042 flow. Second operand 15 states and 1845 transitions. [2022-12-13 14:43:07,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 112 transitions, 1428 flow [2022-12-13 14:43:07,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 112 transitions, 1301 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-12-13 14:43:07,986 INFO L231 Difference]: Finished difference. Result has 137 places, 94 transitions, 1157 flow [2022-12-13 14:43:07,987 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1157, PETRI_PLACES=137, PETRI_TRANSITIONS=94} [2022-12-13 14:43:07,987 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2022-12-13 14:43:07,987 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 94 transitions, 1157 flow [2022-12-13 14:43:07,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:07,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:07,988 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:07,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 14:43:07,988 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:07,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:07,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1348832161, now seen corresponding path program 2 times [2022-12-13 14:43:07,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:07,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767427862] [2022-12-13 14:43:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:08,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:08,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:08,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767427862] [2022-12-13 14:43:08,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767427862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:08,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:08,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:08,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559755177] [2022-12-13 14:43:08,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:08,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:08,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:08,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:08,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:08,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:08,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 94 transitions, 1157 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:08,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:08,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:08,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:09,063 INFO L130 PetriNetUnfolder]: 84/283 cut-off events. [2022-12-13 14:43:09,063 INFO L131 PetriNetUnfolder]: For 1965/1965 co-relation queries the response was YES. [2022-12-13 14:43:09,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 283 events. 84/283 cut-off events. For 1965/1965 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1672 event pairs, 13 based on Foata normal form. 4/287 useless extension candidates. Maximal degree in co-relation 1639. Up to 154 conditions per place. [2022-12-13 14:43:09,067 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 128 selfloop transitions, 30 changer transitions 0/158 dead transitions. [2022-12-13 14:43:09,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 158 transitions, 2199 flow [2022-12-13 14:43:09,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1440 transitions. [2022-12-13 14:43:09,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45772409408773046 [2022-12-13 14:43:09,069 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1440 transitions. [2022-12-13 14:43:09,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1440 transitions. [2022-12-13 14:43:09,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:09,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1440 transitions. [2022-12-13 14:43:09,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.9090909090909) internal successors, (1440), 11 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:09,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:09,072 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:09,072 INFO L175 Difference]: Start difference. First operand has 137 places, 94 transitions, 1157 flow. Second operand 11 states and 1440 transitions. [2022-12-13 14:43:09,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 158 transitions, 2199 flow [2022-12-13 14:43:09,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 158 transitions, 2111 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-12-13 14:43:09,078 INFO L231 Difference]: Finished difference. Result has 146 places, 106 transitions, 1378 flow [2022-12-13 14:43:09,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1378, PETRI_PLACES=146, PETRI_TRANSITIONS=106} [2022-12-13 14:43:09,078 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 117 predicate places. [2022-12-13 14:43:09,079 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 106 transitions, 1378 flow [2022-12-13 14:43:09,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:09,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:09,079 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:09,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 14:43:09,079 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:09,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1336291112, now seen corresponding path program 1 times [2022-12-13 14:43:09,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:09,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656156275] [2022-12-13 14:43:09,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:09,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656156275] [2022-12-13 14:43:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656156275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:09,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:09,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363621641] [2022-12-13 14:43:09,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:09,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:09,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:09,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:09,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:10,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:10,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 106 transitions, 1378 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:10,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:10,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:10,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:10,915 INFO L130 PetriNetUnfolder]: 80/295 cut-off events. [2022-12-13 14:43:10,915 INFO L131 PetriNetUnfolder]: For 2433/2433 co-relation queries the response was YES. [2022-12-13 14:43:10,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1929 conditions, 295 events. 80/295 cut-off events. For 2433/2433 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1796 event pairs, 18 based on Foata normal form. 8/303 useless extension candidates. Maximal degree in co-relation 1813. Up to 152 conditions per place. [2022-12-13 14:43:10,917 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 75 selfloop transitions, 85 changer transitions 7/167 dead transitions. [2022-12-13 14:43:10,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 167 transitions, 2353 flow [2022-12-13 14:43:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 14:43:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 14:43:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2357 transitions. [2022-12-13 14:43:10,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43375046006624957 [2022-12-13 14:43:10,920 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2357 transitions. [2022-12-13 14:43:10,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2357 transitions. [2022-12-13 14:43:10,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:10,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2357 transitions. [2022-12-13 14:43:10,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 124.05263157894737) internal successors, (2357), 19 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:10,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 286.0) internal successors, (5720), 20 states have internal predecessors, (5720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:10,924 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 286.0) internal successors, (5720), 20 states have internal predecessors, (5720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:10,925 INFO L175 Difference]: Start difference. First operand has 146 places, 106 transitions, 1378 flow. Second operand 19 states and 2357 transitions. [2022-12-13 14:43:10,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 167 transitions, 2353 flow [2022-12-13 14:43:10,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 167 transitions, 2330 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 14:43:10,931 INFO L231 Difference]: Finished difference. Result has 166 places, 143 transitions, 2057 flow [2022-12-13 14:43:10,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2057, PETRI_PLACES=166, PETRI_TRANSITIONS=143} [2022-12-13 14:43:10,932 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 137 predicate places. [2022-12-13 14:43:10,932 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 143 transitions, 2057 flow [2022-12-13 14:43:10,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:10,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:10,932 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:10,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 14:43:10,932 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash 569045550, now seen corresponding path program 2 times [2022-12-13 14:43:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:10,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668119722] [2022-12-13 14:43:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:11,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668119722] [2022-12-13 14:43:11,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668119722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:11,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:11,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:11,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317868200] [2022-12-13 14:43:11,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:11,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:11,961 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:11,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 143 transitions, 2057 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:11,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:11,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:11,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:12,577 INFO L130 PetriNetUnfolder]: 89/339 cut-off events. [2022-12-13 14:43:12,577 INFO L131 PetriNetUnfolder]: For 3155/3155 co-relation queries the response was YES. [2022-12-13 14:43:12,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 339 events. 89/339 cut-off events. For 3155/3155 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2172 event pairs, 25 based on Foata normal form. 2/341 useless extension candidates. Maximal degree in co-relation 2259. Up to 109 conditions per place. [2022-12-13 14:43:12,579 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 76 selfloop transitions, 109 changer transitions 0/185 dead transitions. [2022-12-13 14:43:12,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 185 transitions, 2882 flow [2022-12-13 14:43:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 14:43:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 14:43:12,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2490 transitions. [2022-12-13 14:43:12,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4353146853146853 [2022-12-13 14:43:12,581 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2490 transitions. [2022-12-13 14:43:12,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2490 transitions. [2022-12-13 14:43:12,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:12,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2490 transitions. [2022-12-13 14:43:12,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 124.5) internal successors, (2490), 20 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:12,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:12,586 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:12,586 INFO L175 Difference]: Start difference. First operand has 166 places, 143 transitions, 2057 flow. Second operand 20 states and 2490 transitions. [2022-12-13 14:43:12,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 185 transitions, 2882 flow [2022-12-13 14:43:12,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 185 transitions, 2799 flow, removed 35 selfloop flow, removed 4 redundant places. [2022-12-13 14:43:12,600 INFO L231 Difference]: Finished difference. Result has 184 places, 163 transitions, 2530 flow [2022-12-13 14:43:12,600 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2004, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2530, PETRI_PLACES=184, PETRI_TRANSITIONS=163} [2022-12-13 14:43:12,601 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 155 predicate places. [2022-12-13 14:43:12,601 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 163 transitions, 2530 flow [2022-12-13 14:43:12,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:12,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:12,601 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:12,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 14:43:12,601 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:12,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 569045549, now seen corresponding path program 3 times [2022-12-13 14:43:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:12,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048899759] [2022-12-13 14:43:12,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:12,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:12,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048899759] [2022-12-13 14:43:12,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048899759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:12,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:12,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:12,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203067652] [2022-12-13 14:43:12,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:12,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:12,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:13,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:13,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 163 transitions, 2530 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:13,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:13,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:13,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:13,697 INFO L130 PetriNetUnfolder]: 88/346 cut-off events. [2022-12-13 14:43:13,697 INFO L131 PetriNetUnfolder]: For 3542/3542 co-relation queries the response was YES. [2022-12-13 14:43:13,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 346 events. 88/346 cut-off events. For 3542/3542 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2266 event pairs, 26 based on Foata normal form. 6/352 useless extension candidates. Maximal degree in co-relation 2418. Up to 146 conditions per place. [2022-12-13 14:43:13,699 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 147 selfloop transitions, 38 changer transitions 3/188 dead transitions. [2022-12-13 14:43:13,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 188 transitions, 3113 flow [2022-12-13 14:43:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:43:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:43:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1573 transitions. [2022-12-13 14:43:13,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2022-12-13 14:43:13,701 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1573 transitions. [2022-12-13 14:43:13,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1573 transitions. [2022-12-13 14:43:13,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:13,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1573 transitions. [2022-12-13 14:43:13,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 131.08333333333334) internal successors, (1573), 12 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:13,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:13,704 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:13,704 INFO L175 Difference]: Start difference. First operand has 184 places, 163 transitions, 2530 flow. Second operand 12 states and 1573 transitions. [2022-12-13 14:43:13,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 188 transitions, 3113 flow [2022-12-13 14:43:13,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 188 transitions, 2943 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-12-13 14:43:13,716 INFO L231 Difference]: Finished difference. Result has 190 places, 165 transitions, 2507 flow [2022-12-13 14:43:13,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2347, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2507, PETRI_PLACES=190, PETRI_TRANSITIONS=165} [2022-12-13 14:43:13,717 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 161 predicate places. [2022-12-13 14:43:13,717 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 165 transitions, 2507 flow [2022-12-13 14:43:13,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:13,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:13,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:13,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 14:43:13,717 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:13,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:13,717 INFO L85 PathProgramCache]: Analyzing trace with hash -306479068, now seen corresponding path program 3 times [2022-12-13 14:43:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:13,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892544560] [2022-12-13 14:43:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:14,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:14,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892544560] [2022-12-13 14:43:14,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892544560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:14,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:14,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:14,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356178209] [2022-12-13 14:43:14,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:14,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:14,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:14,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:14,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 165 transitions, 2507 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:14,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:14,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:14,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:15,580 INFO L130 PetriNetUnfolder]: 85/336 cut-off events. [2022-12-13 14:43:15,580 INFO L131 PetriNetUnfolder]: For 3509/3509 co-relation queries the response was YES. [2022-12-13 14:43:15,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2495 conditions, 336 events. 85/336 cut-off events. For 3509/3509 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2198 event pairs, 25 based on Foata normal form. 4/340 useless extension candidates. Maximal degree in co-relation 2358. Up to 178 conditions per place. [2022-12-13 14:43:15,582 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 80 selfloop transitions, 95 changer transitions 10/185 dead transitions. [2022-12-13 14:43:15,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 185 transitions, 3016 flow [2022-12-13 14:43:15,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 14:43:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 14:43:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2607 transitions. [2022-12-13 14:43:15,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4340659340659341 [2022-12-13 14:43:15,584 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2607 transitions. [2022-12-13 14:43:15,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2607 transitions. [2022-12-13 14:43:15,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:15,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2607 transitions. [2022-12-13 14:43:15,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 124.14285714285714) internal successors, (2607), 21 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:15,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:15,589 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:15,589 INFO L175 Difference]: Start difference. First operand has 190 places, 165 transitions, 2507 flow. Second operand 21 states and 2607 transitions. [2022-12-13 14:43:15,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 185 transitions, 3016 flow [2022-12-13 14:43:15,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 185 transitions, 2977 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-12-13 14:43:15,602 INFO L231 Difference]: Finished difference. Result has 208 places, 162 transitions, 2577 flow [2022-12-13 14:43:15,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2426, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2577, PETRI_PLACES=208, PETRI_TRANSITIONS=162} [2022-12-13 14:43:15,603 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 179 predicate places. [2022-12-13 14:43:15,603 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 162 transitions, 2577 flow [2022-12-13 14:43:15,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:15,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:15,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:15,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 14:43:15,603 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:15,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:15,604 INFO L85 PathProgramCache]: Analyzing trace with hash -319020118, now seen corresponding path program 4 times [2022-12-13 14:43:15,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:15,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922323584] [2022-12-13 14:43:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:15,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:16,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:16,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922323584] [2022-12-13 14:43:16,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922323584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:16,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:16,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792673727] [2022-12-13 14:43:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:16,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:16,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:16,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:16,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 162 transitions, 2577 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:16,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:16,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:16,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:17,343 INFO L130 PetriNetUnfolder]: 84/322 cut-off events. [2022-12-13 14:43:17,343 INFO L131 PetriNetUnfolder]: For 3514/3514 co-relation queries the response was YES. [2022-12-13 14:43:17,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2500 conditions, 322 events. 84/322 cut-off events. For 3514/3514 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2049 event pairs, 25 based on Foata normal form. 2/324 useless extension candidates. Maximal degree in co-relation 2388. Up to 178 conditions per place. [2022-12-13 14:43:17,345 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 79 selfloop transitions, 94 changer transitions 0/173 dead transitions. [2022-12-13 14:43:17,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 173 transitions, 3018 flow [2022-12-13 14:43:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:43:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:43:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1957 transitions. [2022-12-13 14:43:17,347 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4276660839160839 [2022-12-13 14:43:17,347 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1957 transitions. [2022-12-13 14:43:17,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1957 transitions. [2022-12-13 14:43:17,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:17,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1957 transitions. [2022-12-13 14:43:17,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.3125) internal successors, (1957), 16 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:17,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:17,350 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:17,350 INFO L175 Difference]: Start difference. First operand has 208 places, 162 transitions, 2577 flow. Second operand 16 states and 1957 transitions. [2022-12-13 14:43:17,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 173 transitions, 3018 flow [2022-12-13 14:43:17,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 173 transitions, 2920 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-12-13 14:43:17,362 INFO L231 Difference]: Finished difference. Result has 214 places, 162 transitions, 2671 flow [2022-12-13 14:43:17,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2479, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2671, PETRI_PLACES=214, PETRI_TRANSITIONS=162} [2022-12-13 14:43:17,363 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 185 predicate places. [2022-12-13 14:43:17,363 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 162 transitions, 2671 flow [2022-12-13 14:43:17,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:17,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:17,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:17,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 14:43:17,363 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:17,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:17,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1212221500, now seen corresponding path program 5 times [2022-12-13 14:43:17,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:17,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141780371] [2022-12-13 14:43:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:17,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:17,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:17,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141780371] [2022-12-13 14:43:17,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141780371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:17,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:17,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:17,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235438167] [2022-12-13 14:43:17,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:17,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:17,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:17,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:18,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:18,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 162 transitions, 2671 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:18,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:18,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:18,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:18,924 INFO L130 PetriNetUnfolder]: 83/319 cut-off events. [2022-12-13 14:43:18,924 INFO L131 PetriNetUnfolder]: For 3615/3615 co-relation queries the response was YES. [2022-12-13 14:43:18,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2547 conditions, 319 events. 83/319 cut-off events. For 3615/3615 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2021 event pairs, 23 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 2427. Up to 196 conditions per place. [2022-12-13 14:43:18,926 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 82 selfloop transitions, 83 changer transitions 0/165 dead transitions. [2022-12-13 14:43:18,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 165 transitions, 2985 flow [2022-12-13 14:43:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:18,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1367 transitions. [2022-12-13 14:43:18,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43452002542911633 [2022-12-13 14:43:18,927 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1367 transitions. [2022-12-13 14:43:18,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1367 transitions. [2022-12-13 14:43:18,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:18,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1367 transitions. [2022-12-13 14:43:18,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 124.27272727272727) internal successors, (1367), 11 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:18,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:18,930 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:18,930 INFO L175 Difference]: Start difference. First operand has 214 places, 162 transitions, 2671 flow. Second operand 11 states and 1367 transitions. [2022-12-13 14:43:18,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 165 transitions, 2985 flow [2022-12-13 14:43:18,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 165 transitions, 2799 flow, removed 1 selfloop flow, removed 15 redundant places. [2022-12-13 14:43:18,942 INFO L231 Difference]: Finished difference. Result has 207 places, 161 transitions, 2625 flow [2022-12-13 14:43:18,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2625, PETRI_PLACES=207, PETRI_TRANSITIONS=161} [2022-12-13 14:43:18,942 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 178 predicate places. [2022-12-13 14:43:18,942 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 161 transitions, 2625 flow [2022-12-13 14:43:18,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:18,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:18,943 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:18,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 14:43:18,943 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash -503743623, now seen corresponding path program 4 times [2022-12-13 14:43:18,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:18,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011308270] [2022-12-13 14:43:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:18,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:19,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:19,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011308270] [2022-12-13 14:43:19,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011308270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:19,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:19,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563872885] [2022-12-13 14:43:19,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:19,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:19,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:19,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:19,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:19,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 161 transitions, 2625 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:19,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:19,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:19,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:20,013 INFO L130 PetriNetUnfolder]: 81/313 cut-off events. [2022-12-13 14:43:20,014 INFO L131 PetriNetUnfolder]: For 3346/3346 co-relation queries the response was YES. [2022-12-13 14:43:20,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 313 events. 81/313 cut-off events. For 3346/3346 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1972 event pairs, 19 based on Foata normal form. 4/317 useless extension candidates. Maximal degree in co-relation 2395. Up to 171 conditions per place. [2022-12-13 14:43:20,015 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 110 selfloop transitions, 61 changer transitions 0/171 dead transitions. [2022-12-13 14:43:20,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 171 transitions, 3017 flow [2022-12-13 14:43:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1437 transitions. [2022-12-13 14:43:20,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45677050222504767 [2022-12-13 14:43:20,017 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1437 transitions. [2022-12-13 14:43:20,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1437 transitions. [2022-12-13 14:43:20,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:20,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1437 transitions. [2022-12-13 14:43:20,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.63636363636363) internal successors, (1437), 11 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:20,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:20,020 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:20,020 INFO L175 Difference]: Start difference. First operand has 207 places, 161 transitions, 2625 flow. Second operand 11 states and 1437 transitions. [2022-12-13 14:43:20,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 171 transitions, 3017 flow [2022-12-13 14:43:20,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 171 transitions, 2915 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 14:43:20,032 INFO L231 Difference]: Finished difference. Result has 212 places, 162 transitions, 2677 flow [2022-12-13 14:43:20,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2677, PETRI_PLACES=212, PETRI_TRANSITIONS=162} [2022-12-13 14:43:20,032 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 183 predicate places. [2022-12-13 14:43:20,032 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 162 transitions, 2677 flow [2022-12-13 14:43:20,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:20,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:20,033 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:20,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 14:43:20,033 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1987983265, now seen corresponding path program 5 times [2022-12-13 14:43:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:20,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419343939] [2022-12-13 14:43:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:20,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:20,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:20,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419343939] [2022-12-13 14:43:20,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419343939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:20,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:20,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443503364] [2022-12-13 14:43:20,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:20,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:20,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:20,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:20,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:20,831 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:20,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 162 transitions, 2677 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:20,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:20,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:20,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:21,191 INFO L130 PetriNetUnfolder]: 85/349 cut-off events. [2022-12-13 14:43:21,192 INFO L131 PetriNetUnfolder]: For 4441/4441 co-relation queries the response was YES. [2022-12-13 14:43:21,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2843 conditions, 349 events. 85/349 cut-off events. For 4441/4441 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2335 event pairs, 20 based on Foata normal form. 6/355 useless extension candidates. Maximal degree in co-relation 2715. Up to 131 conditions per place. [2022-12-13 14:43:21,194 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 141 selfloop transitions, 50 changer transitions 0/191 dead transitions. [2022-12-13 14:43:21,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 191 transitions, 3402 flow [2022-12-13 14:43:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1441 transitions. [2022-12-13 14:43:21,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.458041958041958 [2022-12-13 14:43:21,195 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1441 transitions. [2022-12-13 14:43:21,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1441 transitions. [2022-12-13 14:43:21,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:21,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1441 transitions. [2022-12-13 14:43:21,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:21,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:21,198 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:21,198 INFO L175 Difference]: Start difference. First operand has 212 places, 162 transitions, 2677 flow. Second operand 11 states and 1441 transitions. [2022-12-13 14:43:21,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 191 transitions, 3402 flow [2022-12-13 14:43:21,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 191 transitions, 3293 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 14:43:21,212 INFO L231 Difference]: Finished difference. Result has 219 places, 172 transitions, 2913 flow [2022-12-13 14:43:21,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2579, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2913, PETRI_PLACES=219, PETRI_TRANSITIONS=172} [2022-12-13 14:43:21,212 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 190 predicate places. [2022-12-13 14:43:21,212 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 172 transitions, 2913 flow [2022-12-13 14:43:21,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:21,212 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:21,212 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:21,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 14:43:21,213 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:21,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:21,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1987983266, now seen corresponding path program 6 times [2022-12-13 14:43:21,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:21,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342261623] [2022-12-13 14:43:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:21,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:21,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342261623] [2022-12-13 14:43:21,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342261623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:21,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:21,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:21,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654474471] [2022-12-13 14:43:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:21,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:21,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:21,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:21,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:22,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:22,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 172 transitions, 2913 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:22,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:22,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:22,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:23,032 INFO L130 PetriNetUnfolder]: 83/347 cut-off events. [2022-12-13 14:43:23,032 INFO L131 PetriNetUnfolder]: For 4581/4581 co-relation queries the response was YES. [2022-12-13 14:43:23,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2926 conditions, 347 events. 83/347 cut-off events. For 4581/4581 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2327 event pairs, 20 based on Foata normal form. 2/349 useless extension candidates. Maximal degree in co-relation 2797. Up to 103 conditions per place. [2022-12-13 14:43:23,034 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 119 selfloop transitions, 72 changer transitions 6/197 dead transitions. [2022-12-13 14:43:23,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 197 transitions, 3509 flow [2022-12-13 14:43:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 14:43:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 14:43:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2488 transitions. [2022-12-13 14:43:23,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43496503496503497 [2022-12-13 14:43:23,037 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2488 transitions. [2022-12-13 14:43:23,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2488 transitions. [2022-12-13 14:43:23,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:23,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2488 transitions. [2022-12-13 14:43:23,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 124.4) internal successors, (2488), 20 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:23,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:23,041 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:23,041 INFO L175 Difference]: Start difference. First operand has 219 places, 172 transitions, 2913 flow. Second operand 20 states and 2488 transitions. [2022-12-13 14:43:23,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 197 transitions, 3509 flow [2022-12-13 14:43:23,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 197 transitions, 3416 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-12-13 14:43:23,057 INFO L231 Difference]: Finished difference. Result has 237 places, 172 transitions, 2969 flow [2022-12-13 14:43:23,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2819, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2969, PETRI_PLACES=237, PETRI_TRANSITIONS=172} [2022-12-13 14:43:23,057 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 208 predicate places. [2022-12-13 14:43:23,057 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 172 transitions, 2969 flow [2022-12-13 14:43:23,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:23,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:23,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:23,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 14:43:23,058 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:23,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1894029198, now seen corresponding path program 7 times [2022-12-13 14:43:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:23,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948493361] [2022-12-13 14:43:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:23,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:23,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948493361] [2022-12-13 14:43:23,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948493361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:23,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:23,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:23,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923370239] [2022-12-13 14:43:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:23,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:23,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:24,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:24,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 172 transitions, 2969 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:24,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:24,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:24,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:24,827 INFO L130 PetriNetUnfolder]: 87/373 cut-off events. [2022-12-13 14:43:24,828 INFO L131 PetriNetUnfolder]: For 4944/4944 co-relation queries the response was YES. [2022-12-13 14:43:24,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3224 conditions, 373 events. 87/373 cut-off events. For 4944/4944 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2601 event pairs, 23 based on Foata normal form. 4/377 useless extension candidates. Maximal degree in co-relation 3087. Up to 234 conditions per place. [2022-12-13 14:43:24,830 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 112 selfloop transitions, 78 changer transitions 14/204 dead transitions. [2022-12-13 14:43:24,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 204 transitions, 3770 flow [2022-12-13 14:43:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 14:43:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 14:43:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2487 transitions. [2022-12-13 14:43:24,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43479020979020977 [2022-12-13 14:43:24,832 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2487 transitions. [2022-12-13 14:43:24,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2487 transitions. [2022-12-13 14:43:24,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:24,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2487 transitions. [2022-12-13 14:43:24,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 124.35) internal successors, (2487), 20 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:24,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:24,836 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:24,836 INFO L175 Difference]: Start difference. First operand has 237 places, 172 transitions, 2969 flow. Second operand 20 states and 2487 transitions. [2022-12-13 14:43:24,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 204 transitions, 3770 flow [2022-12-13 14:43:24,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 204 transitions, 3648 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-12-13 14:43:24,853 INFO L231 Difference]: Finished difference. Result has 253 places, 178 transitions, 3130 flow [2022-12-13 14:43:24,854 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2836, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3130, PETRI_PLACES=253, PETRI_TRANSITIONS=178} [2022-12-13 14:43:24,854 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 224 predicate places. [2022-12-13 14:43:24,854 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 178 transitions, 3130 flow [2022-12-13 14:43:24,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:24,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:24,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:24,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 14:43:24,854 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:24,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1537954530, now seen corresponding path program 8 times [2022-12-13 14:43:24,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:24,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566442845] [2022-12-13 14:43:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:24,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:25,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:25,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566442845] [2022-12-13 14:43:25,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566442845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:25,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:25,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:25,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705639272] [2022-12-13 14:43:25,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:25,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:25,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:25,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:25,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:26,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:26,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 178 transitions, 3130 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:26,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:26,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:26,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:26,928 INFO L130 PetriNetUnfolder]: 87/383 cut-off events. [2022-12-13 14:43:26,928 INFO L131 PetriNetUnfolder]: For 5444/5444 co-relation queries the response was YES. [2022-12-13 14:43:26,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3387 conditions, 383 events. 87/383 cut-off events. For 5444/5444 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2723 event pairs, 26 based on Foata normal form. 6/389 useless extension candidates. Maximal degree in co-relation 3295. Up to 183 conditions per place. [2022-12-13 14:43:26,930 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 111 selfloop transitions, 87 changer transitions 5/203 dead transitions. [2022-12-13 14:43:26,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 203 transitions, 3833 flow [2022-12-13 14:43:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 14:43:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-13 14:43:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2734 transitions. [2022-12-13 14:43:26,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43452002542911633 [2022-12-13 14:43:26,933 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2734 transitions. [2022-12-13 14:43:26,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2734 transitions. [2022-12-13 14:43:26,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:26,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2734 transitions. [2022-12-13 14:43:26,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 124.27272727272727) internal successors, (2734), 22 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:26,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:26,937 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:26,937 INFO L175 Difference]: Start difference. First operand has 253 places, 178 transitions, 3130 flow. Second operand 22 states and 2734 transitions. [2022-12-13 14:43:26,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 203 transitions, 3833 flow [2022-12-13 14:43:26,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 203 transitions, 3774 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-12-13 14:43:26,960 INFO L231 Difference]: Finished difference. Result has 268 places, 183 transitions, 3346 flow [2022-12-13 14:43:26,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3054, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3346, PETRI_PLACES=268, PETRI_TRANSITIONS=183} [2022-12-13 14:43:26,961 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 239 predicate places. [2022-12-13 14:43:26,961 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 183 transitions, 3346 flow [2022-12-13 14:43:26,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:26,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:26,961 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:26,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 14:43:26,961 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:26,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:26,962 INFO L85 PathProgramCache]: Analyzing trace with hash -590561939, now seen corresponding path program 6 times [2022-12-13 14:43:26,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:26,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001546925] [2022-12-13 14:43:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:26,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:27,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001546925] [2022-12-13 14:43:27,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001546925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:27,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:27,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:27,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122258938] [2022-12-13 14:43:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:27,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:27,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:27,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 183 transitions, 3346 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:27,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:27,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:27,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:28,102 INFO L130 PetriNetUnfolder]: 85/373 cut-off events. [2022-12-13 14:43:28,102 INFO L131 PetriNetUnfolder]: For 5380/5380 co-relation queries the response was YES. [2022-12-13 14:43:28,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3395 conditions, 373 events. 85/373 cut-off events. For 5380/5380 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2626 event pairs, 19 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 3271. Up to 179 conditions per place. [2022-12-13 14:43:28,105 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 126 selfloop transitions, 60 changer transitions 7/193 dead transitions. [2022-12-13 14:43:28,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 193 transitions, 3808 flow [2022-12-13 14:43:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:28,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1432 transitions. [2022-12-13 14:43:28,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4551811824539097 [2022-12-13 14:43:28,106 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1432 transitions. [2022-12-13 14:43:28,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1432 transitions. [2022-12-13 14:43:28,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:28,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1432 transitions. [2022-12-13 14:43:28,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.1818181818182) internal successors, (1432), 11 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:28,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:28,109 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:28,109 INFO L175 Difference]: Start difference. First operand has 268 places, 183 transitions, 3346 flow. Second operand 11 states and 1432 transitions. [2022-12-13 14:43:28,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 193 transitions, 3808 flow [2022-12-13 14:43:28,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 193 transitions, 3485 flow, removed 22 selfloop flow, removed 18 redundant places. [2022-12-13 14:43:28,128 INFO L231 Difference]: Finished difference. Result has 258 places, 177 transitions, 3044 flow [2022-12-13 14:43:28,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3005, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3044, PETRI_PLACES=258, PETRI_TRANSITIONS=177} [2022-12-13 14:43:28,128 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 229 predicate places. [2022-12-13 14:43:28,128 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 177 transitions, 3044 flow [2022-12-13 14:43:28,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:28,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:28,129 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:28,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 14:43:28,129 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:28,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:28,129 INFO L85 PathProgramCache]: Analyzing trace with hash 167093060, now seen corresponding path program 9 times [2022-12-13 14:43:28,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:28,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808440745] [2022-12-13 14:43:28,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:28,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:28,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:28,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808440745] [2022-12-13 14:43:28,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808440745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:28,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:28,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:28,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705226609] [2022-12-13 14:43:28,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:28,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:29,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:29,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 177 transitions, 3044 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:29,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:29,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:29,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:29,726 INFO L130 PetriNetUnfolder]: 84/371 cut-off events. [2022-12-13 14:43:29,726 INFO L131 PetriNetUnfolder]: For 5117/5117 co-relation queries the response was YES. [2022-12-13 14:43:29,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3286 conditions, 371 events. 84/371 cut-off events. For 5117/5117 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2609 event pairs, 22 based on Foata normal form. 8/379 useless extension candidates. Maximal degree in co-relation 3181. Up to 84 conditions per place. [2022-12-13 14:43:29,728 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 74 selfloop transitions, 122 changer transitions 5/201 dead transitions. [2022-12-13 14:43:29,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 201 transitions, 3678 flow [2022-12-13 14:43:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 14:43:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 14:43:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2850 transitions. [2022-12-13 14:43:29,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4332623897841289 [2022-12-13 14:43:29,731 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2850 transitions. [2022-12-13 14:43:29,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2850 transitions. [2022-12-13 14:43:29,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:29,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2850 transitions. [2022-12-13 14:43:29,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 123.91304347826087) internal successors, (2850), 23 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:29,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 286.0) internal successors, (6864), 24 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:29,736 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 286.0) internal successors, (6864), 24 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:29,736 INFO L175 Difference]: Start difference. First operand has 258 places, 177 transitions, 3044 flow. Second operand 23 states and 2850 transitions. [2022-12-13 14:43:29,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 201 transitions, 3678 flow [2022-12-13 14:43:29,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 201 transitions, 3540 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-12-13 14:43:29,752 INFO L231 Difference]: Finished difference. Result has 269 places, 184 transitions, 3367 flow [2022-12-13 14:43:29,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2849, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3367, PETRI_PLACES=269, PETRI_TRANSITIONS=184} [2022-12-13 14:43:29,753 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 240 predicate places. [2022-12-13 14:43:29,753 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 184 transitions, 3367 flow [2022-12-13 14:43:29,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:29,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:29,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:29,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-13 14:43:29,753 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:29,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1336291111, now seen corresponding path program 7 times [2022-12-13 14:43:29,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:29,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036173895] [2022-12-13 14:43:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:29,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:30,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:30,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036173895] [2022-12-13 14:43:30,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036173895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:30,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:30,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:30,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165278165] [2022-12-13 14:43:30,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:30,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:30,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:30,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:30,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:30,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:30,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 184 transitions, 3367 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:30,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:30,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:30,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:31,327 INFO L130 PetriNetUnfolder]: 80/357 cut-off events. [2022-12-13 14:43:31,327 INFO L131 PetriNetUnfolder]: For 4908/4908 co-relation queries the response was YES. [2022-12-13 14:43:31,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3329 conditions, 357 events. 80/357 cut-off events. For 4908/4908 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2467 event pairs, 27 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 3208. Up to 231 conditions per place. [2022-12-13 14:43:31,329 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 109 selfloop transitions, 71 changer transitions 10/190 dead transitions. [2022-12-13 14:43:31,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 190 transitions, 3771 flow [2022-12-13 14:43:31,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:31,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1345 transitions. [2022-12-13 14:43:31,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42752701843610935 [2022-12-13 14:43:31,336 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1345 transitions. [2022-12-13 14:43:31,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1345 transitions. [2022-12-13 14:43:31,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:31,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1345 transitions. [2022-12-13 14:43:31,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 122.27272727272727) internal successors, (1345), 11 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:31,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:31,338 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:31,338 INFO L175 Difference]: Start difference. First operand has 269 places, 184 transitions, 3367 flow. Second operand 11 states and 1345 transitions. [2022-12-13 14:43:31,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 190 transitions, 3771 flow [2022-12-13 14:43:31,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 190 transitions, 3405 flow, removed 26 selfloop flow, removed 26 redundant places. [2022-12-13 14:43:31,355 INFO L231 Difference]: Finished difference. Result has 252 places, 177 transitions, 3054 flow [2022-12-13 14:43:31,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2979, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3054, PETRI_PLACES=252, PETRI_TRANSITIONS=177} [2022-12-13 14:43:31,355 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 223 predicate places. [2022-12-13 14:43:31,356 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 177 transitions, 3054 flow [2022-12-13 14:43:31,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:31,356 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:31,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:31,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-13 14:43:31,356 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:31,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:31,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1350753775, now seen corresponding path program 8 times [2022-12-13 14:43:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:31,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706335618] [2022-12-13 14:43:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:31,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:31,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:31,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706335618] [2022-12-13 14:43:31,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706335618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:31,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:31,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:31,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233852108] [2022-12-13 14:43:31,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:31,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:31,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:31,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:31,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:32,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:32,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 177 transitions, 3054 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:32,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:32,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:32,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:32,514 INFO L130 PetriNetUnfolder]: 75/337 cut-off events. [2022-12-13 14:43:32,514 INFO L131 PetriNetUnfolder]: For 4756/4756 co-relation queries the response was YES. [2022-12-13 14:43:32,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3022 conditions, 337 events. 75/337 cut-off events. For 4756/4756 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2303 event pairs, 24 based on Foata normal form. 12/349 useless extension candidates. Maximal degree in co-relation 2863. Up to 106 conditions per place. [2022-12-13 14:43:32,516 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 122 selfloop transitions, 65 changer transitions 0/187 dead transitions. [2022-12-13 14:43:32,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 187 transitions, 3425 flow [2022-12-13 14:43:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1445 transitions. [2022-12-13 14:43:32,517 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4593134138588684 [2022-12-13 14:43:32,517 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1445 transitions. [2022-12-13 14:43:32,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1445 transitions. [2022-12-13 14:43:32,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:32,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1445 transitions. [2022-12-13 14:43:32,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 131.36363636363637) internal successors, (1445), 11 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:32,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:32,520 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:32,520 INFO L175 Difference]: Start difference. First operand has 252 places, 177 transitions, 3054 flow. Second operand 11 states and 1445 transitions. [2022-12-13 14:43:32,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 187 transitions, 3425 flow [2022-12-13 14:43:32,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 187 transitions, 3299 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-12-13 14:43:32,534 INFO L231 Difference]: Finished difference. Result has 250 places, 176 transitions, 3102 flow [2022-12-13 14:43:32,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2828, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3102, PETRI_PLACES=250, PETRI_TRANSITIONS=176} [2022-12-13 14:43:32,534 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 221 predicate places. [2022-12-13 14:43:32,534 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 176 transitions, 3102 flow [2022-12-13 14:43:32,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:32,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:32,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:32,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-13 14:43:32,535 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:32,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1015605026, now seen corresponding path program 10 times [2022-12-13 14:43:32,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:32,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319836802] [2022-12-13 14:43:32,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:32,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:33,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:33,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319836802] [2022-12-13 14:43:33,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319836802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:33,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:33,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:33,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835042858] [2022-12-13 14:43:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:33,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:33,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:33,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:33,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:33,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 176 transitions, 3102 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:33,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:33,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:33,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:34,708 INFO L130 PetriNetUnfolder]: 67/321 cut-off events. [2022-12-13 14:43:34,708 INFO L131 PetriNetUnfolder]: For 5068/5068 co-relation queries the response was YES. [2022-12-13 14:43:34,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2882 conditions, 321 events. 67/321 cut-off events. For 5068/5068 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2206 event pairs, 14 based on Foata normal form. 12/333 useless extension candidates. Maximal degree in co-relation 2715. Up to 64 conditions per place. [2022-12-13 14:43:34,710 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 79 selfloop transitions, 90 changer transitions 19/188 dead transitions. [2022-12-13 14:43:34,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 188 transitions, 3429 flow [2022-12-13 14:43:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 14:43:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-13 14:43:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3104 transitions. [2022-12-13 14:43:34,713 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4341258741258741 [2022-12-13 14:43:34,713 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3104 transitions. [2022-12-13 14:43:34,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3104 transitions. [2022-12-13 14:43:34,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:34,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3104 transitions. [2022-12-13 14:43:34,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 124.16) internal successors, (3104), 25 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:34,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 286.0) internal successors, (7436), 26 states have internal predecessors, (7436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:34,718 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 286.0) internal successors, (7436), 26 states have internal predecessors, (7436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:34,718 INFO L175 Difference]: Start difference. First operand has 250 places, 176 transitions, 3102 flow. Second operand 25 states and 3104 transitions. [2022-12-13 14:43:34,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 188 transitions, 3429 flow [2022-12-13 14:43:34,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 188 transitions, 3343 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-12-13 14:43:34,734 INFO L231 Difference]: Finished difference. Result has 269 places, 154 transitions, 2707 flow [2022-12-13 14:43:34,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2898, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2707, PETRI_PLACES=269, PETRI_TRANSITIONS=154} [2022-12-13 14:43:34,734 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 240 predicate places. [2022-12-13 14:43:34,734 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 154 transitions, 2707 flow [2022-12-13 14:43:34,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:34,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:34,735 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:34,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-13 14:43:34,735 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:34,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:34,735 INFO L85 PathProgramCache]: Analyzing trace with hash 149247289, now seen corresponding path program 9 times [2022-12-13 14:43:34,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:34,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501667731] [2022-12-13 14:43:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:34,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:35,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:35,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501667731] [2022-12-13 14:43:35,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501667731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:35,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:35,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:35,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672736592] [2022-12-13 14:43:35,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:35,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:35,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:35,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:35,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:35,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 154 transitions, 2707 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:35,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:35,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:35,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:35,739 INFO L130 PetriNetUnfolder]: 61/291 cut-off events. [2022-12-13 14:43:35,739 INFO L131 PetriNetUnfolder]: For 4069/4069 co-relation queries the response was YES. [2022-12-13 14:43:35,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 291 events. 61/291 cut-off events. For 4069/4069 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1935 event pairs, 22 based on Foata normal form. 2/293 useless extension candidates. Maximal degree in co-relation 2509. Up to 167 conditions per place. [2022-12-13 14:43:35,741 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 92 selfloop transitions, 66 changer transitions 0/158 dead transitions. [2022-12-13 14:43:35,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 158 transitions, 3007 flow [2022-12-13 14:43:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:35,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1431 transitions. [2022-12-13 14:43:35,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45486331849968215 [2022-12-13 14:43:35,742 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1431 transitions. [2022-12-13 14:43:35,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1431 transitions. [2022-12-13 14:43:35,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:35,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1431 transitions. [2022-12-13 14:43:35,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.0909090909091) internal successors, (1431), 11 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:35,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:35,745 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:35,745 INFO L175 Difference]: Start difference. First operand has 269 places, 154 transitions, 2707 flow. Second operand 11 states and 1431 transitions. [2022-12-13 14:43:35,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 158 transitions, 3007 flow [2022-12-13 14:43:35,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 158 transitions, 2694 flow, removed 13 selfloop flow, removed 24 redundant places. [2022-12-13 14:43:35,758 INFO L231 Difference]: Finished difference. Result has 249 places, 153 transitions, 2498 flow [2022-12-13 14:43:35,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2366, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2498, PETRI_PLACES=249, PETRI_TRANSITIONS=153} [2022-12-13 14:43:35,759 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 220 predicate places. [2022-12-13 14:43:35,759 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 153 transitions, 2498 flow [2022-12-13 14:43:35,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:35,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:35,759 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:35,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-13 14:43:35,759 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:35,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 777013732, now seen corresponding path program 11 times [2022-12-13 14:43:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:35,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133396224] [2022-12-13 14:43:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:36,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:36,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133396224] [2022-12-13 14:43:36,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133396224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:36,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:36,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:36,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884173396] [2022-12-13 14:43:36,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:36,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:36,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:36,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:36,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 153 transitions, 2498 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:36,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:36,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:36,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:37,473 INFO L130 PetriNetUnfolder]: 59/285 cut-off events. [2022-12-13 14:43:37,473 INFO L131 PetriNetUnfolder]: For 3225/3225 co-relation queries the response was YES. [2022-12-13 14:43:37,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2461 conditions, 285 events. 59/285 cut-off events. For 3225/3225 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1890 event pairs, 18 based on Foata normal form. 4/289 useless extension candidates. Maximal degree in co-relation 2325. Up to 178 conditions per place. [2022-12-13 14:43:37,474 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 91 selfloop transitions, 64 changer transitions 0/155 dead transitions. [2022-12-13 14:43:37,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 155 transitions, 2788 flow [2022-12-13 14:43:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:43:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 14:43:37,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1862 transitions. [2022-12-13 14:43:37,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43403263403263403 [2022-12-13 14:43:37,476 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1862 transitions. [2022-12-13 14:43:37,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1862 transitions. [2022-12-13 14:43:37,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:37,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1862 transitions. [2022-12-13 14:43:37,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 124.13333333333334) internal successors, (1862), 15 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:37,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:37,480 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:37,481 INFO L175 Difference]: Start difference. First operand has 249 places, 153 transitions, 2498 flow. Second operand 15 states and 1862 transitions. [2022-12-13 14:43:37,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 155 transitions, 2788 flow [2022-12-13 14:43:37,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 155 transitions, 2661 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-12-13 14:43:37,492 INFO L231 Difference]: Finished difference. Result has 253 places, 152 transitions, 2472 flow [2022-12-13 14:43:37,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2344, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2472, PETRI_PLACES=253, PETRI_TRANSITIONS=152} [2022-12-13 14:43:37,492 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 224 predicate places. [2022-12-13 14:43:37,492 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 152 transitions, 2472 flow [2022-12-13 14:43:37,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:37,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:37,493 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:37,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-13 14:43:37,493 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:37,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:37,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1152508438, now seen corresponding path program 12 times [2022-12-13 14:43:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:37,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062618275] [2022-12-13 14:43:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062618275] [2022-12-13 14:43:37,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062618275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:37,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:37,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 14:43:37,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080641866] [2022-12-13 14:43:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:37,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:43:37,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:43:37,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:43:38,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 286 [2022-12-13 14:43:38,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 152 transitions, 2472 flow. Second operand has 11 states, 11 states have (on average 123.0909090909091) internal successors, (1354), 11 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:38,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:38,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 286 [2022-12-13 14:43:38,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:38,597 INFO L130 PetriNetUnfolder]: 64/318 cut-off events. [2022-12-13 14:43:38,597 INFO L131 PetriNetUnfolder]: For 3666/3666 co-relation queries the response was YES. [2022-12-13 14:43:38,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2740 conditions, 318 events. 64/318 cut-off events. For 3666/3666 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2183 event pairs, 16 based on Foata normal form. 2/320 useless extension candidates. Maximal degree in co-relation 2585. Up to 214 conditions per place. [2022-12-13 14:43:38,599 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 143 selfloop transitions, 30 changer transitions 7/180 dead transitions. [2022-12-13 14:43:38,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 180 transitions, 3191 flow [2022-12-13 14:43:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:43:38,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 14:43:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1628 transitions. [2022-12-13 14:43:38,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4378698224852071 [2022-12-13 14:43:38,601 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1628 transitions. [2022-12-13 14:43:38,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1628 transitions. [2022-12-13 14:43:38,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:38,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1628 transitions. [2022-12-13 14:43:38,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 125.23076923076923) internal successors, (1628), 13 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:38,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:38,604 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:38,604 INFO L175 Difference]: Start difference. First operand has 253 places, 152 transitions, 2472 flow. Second operand 13 states and 1628 transitions. [2022-12-13 14:43:38,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 180 transitions, 3191 flow [2022-12-13 14:43:38,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 180 transitions, 3002 flow, removed 7 selfloop flow, removed 14 redundant places. [2022-12-13 14:43:38,617 INFO L231 Difference]: Finished difference. Result has 257 places, 161 transitions, 2539 flow [2022-12-13 14:43:38,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2297, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2539, PETRI_PLACES=257, PETRI_TRANSITIONS=161} [2022-12-13 14:43:38,617 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 228 predicate places. [2022-12-13 14:43:38,617 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 161 transitions, 2539 flow [2022-12-13 14:43:38,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 123.0909090909091) internal successors, (1354), 11 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:38,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:38,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:38,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-13 14:43:38,617 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash 556504499, now seen corresponding path program 10 times [2022-12-13 14:43:38,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:38,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671364491] [2022-12-13 14:43:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:39,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:39,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671364491] [2022-12-13 14:43:39,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671364491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:39,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:39,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003658926] [2022-12-13 14:43:39,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:39,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:39,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:39,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:39,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:39,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:39,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 161 transitions, 2539 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:39,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:39,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:39,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:40,079 INFO L130 PetriNetUnfolder]: 66/339 cut-off events. [2022-12-13 14:43:40,079 INFO L131 PetriNetUnfolder]: For 3560/3560 co-relation queries the response was YES. [2022-12-13 14:43:40,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 339 events. 66/339 cut-off events. For 3560/3560 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2425 event pairs, 26 based on Foata normal form. 2/341 useless extension candidates. Maximal degree in co-relation 2804. Up to 154 conditions per place. [2022-12-13 14:43:40,081 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 114 selfloop transitions, 64 changer transitions 8/186 dead transitions. [2022-12-13 14:43:40,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 186 transitions, 3160 flow [2022-12-13 14:43:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:43:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:43:40,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1959 transitions. [2022-12-13 14:43:40,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4281031468531469 [2022-12-13 14:43:40,083 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1959 transitions. [2022-12-13 14:43:40,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1959 transitions. [2022-12-13 14:43:40,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:40,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1959 transitions. [2022-12-13 14:43:40,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.4375) internal successors, (1959), 16 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:40,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:40,086 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:40,086 INFO L175 Difference]: Start difference. First operand has 257 places, 161 transitions, 2539 flow. Second operand 16 states and 1959 transitions. [2022-12-13 14:43:40,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 186 transitions, 3160 flow [2022-12-13 14:43:40,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 186 transitions, 3141 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-13 14:43:40,098 INFO L231 Difference]: Finished difference. Result has 265 places, 161 transitions, 2684 flow [2022-12-13 14:43:40,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2520, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2684, PETRI_PLACES=265, PETRI_TRANSITIONS=161} [2022-12-13 14:43:40,099 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 236 predicate places. [2022-12-13 14:43:40,099 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 161 transitions, 2684 flow [2022-12-13 14:43:40,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:40,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:40,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:40,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-13 14:43:40,099 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:40,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1978067991, now seen corresponding path program 11 times [2022-12-13 14:43:40,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:40,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236474700] [2022-12-13 14:43:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:40,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:40,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:40,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:40,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236474700] [2022-12-13 14:43:40,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236474700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:40,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:40,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:40,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936302108] [2022-12-13 14:43:40,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:40,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:40,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:40,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:40,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:41,177 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:41,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 161 transitions, 2684 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:41,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:41,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:41,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:41,788 INFO L130 PetriNetUnfolder]: 67/347 cut-off events. [2022-12-13 14:43:41,788 INFO L131 PetriNetUnfolder]: For 4140/4140 co-relation queries the response was YES. [2022-12-13 14:43:41,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 347 events. 67/347 cut-off events. For 4140/4140 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2518 event pairs, 26 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 2969. Up to 108 conditions per place. [2022-12-13 14:43:41,790 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 117 selfloop transitions, 46 changer transitions 14/177 dead transitions. [2022-12-13 14:43:41,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 177 transitions, 3169 flow [2022-12-13 14:43:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:43:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 14:43:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1840 transitions. [2022-12-13 14:43:41,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4289044289044289 [2022-12-13 14:43:41,792 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1840 transitions. [2022-12-13 14:43:41,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1840 transitions. [2022-12-13 14:43:41,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:41,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1840 transitions. [2022-12-13 14:43:41,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 122.66666666666667) internal successors, (1840), 15 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:41,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:41,795 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:41,796 INFO L175 Difference]: Start difference. First operand has 265 places, 161 transitions, 2684 flow. Second operand 15 states and 1840 transitions. [2022-12-13 14:43:41,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 177 transitions, 3169 flow [2022-12-13 14:43:41,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 177 transitions, 3062 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-12-13 14:43:41,809 INFO L231 Difference]: Finished difference. Result has 270 places, 157 transitions, 2601 flow [2022-12-13 14:43:41,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2577, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2601, PETRI_PLACES=270, PETRI_TRANSITIONS=157} [2022-12-13 14:43:41,810 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 241 predicate places. [2022-12-13 14:43:41,810 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 157 transitions, 2601 flow [2022-12-13 14:43:41,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:41,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:41,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:41,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-13 14:43:41,810 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:41,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1033450795, now seen corresponding path program 12 times [2022-12-13 14:43:41,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:41,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768055318] [2022-12-13 14:43:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:42,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:42,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768055318] [2022-12-13 14:43:42,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768055318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:42,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:42,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:42,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956908380] [2022-12-13 14:43:42,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:42,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:42,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:42,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:42,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:42,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:42,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 157 transitions, 2601 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:42,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:42,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:42,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:43,374 INFO L130 PetriNetUnfolder]: 58/315 cut-off events. [2022-12-13 14:43:43,374 INFO L131 PetriNetUnfolder]: For 3724/3724 co-relation queries the response was YES. [2022-12-13 14:43:43,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 315 events. 58/315 cut-off events. For 3724/3724 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2228 event pairs, 22 based on Foata normal form. 4/319 useless extension candidates. Maximal degree in co-relation 2723. Up to 108 conditions per place. [2022-12-13 14:43:43,375 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 111 selfloop transitions, 45 changer transitions 10/166 dead transitions. [2022-12-13 14:43:43,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 166 transitions, 2899 flow [2022-12-13 14:43:43,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:43:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:43:43,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1962 transitions. [2022-12-13 14:43:43,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42875874125874125 [2022-12-13 14:43:43,377 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1962 transitions. [2022-12-13 14:43:43,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1962 transitions. [2022-12-13 14:43:43,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:43,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1962 transitions. [2022-12-13 14:43:43,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.625) internal successors, (1962), 16 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:43,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:43,384 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:43,385 INFO L175 Difference]: Start difference. First operand has 270 places, 157 transitions, 2601 flow. Second operand 16 states and 1962 transitions. [2022-12-13 14:43:43,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 166 transitions, 2899 flow [2022-12-13 14:43:43,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 166 transitions, 2770 flow, removed 2 selfloop flow, removed 13 redundant places. [2022-12-13 14:43:43,396 INFO L231 Difference]: Finished difference. Result has 268 places, 148 transitions, 2380 flow [2022-12-13 14:43:43,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2411, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2380, PETRI_PLACES=268, PETRI_TRANSITIONS=148} [2022-12-13 14:43:43,397 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 239 predicate places. [2022-12-13 14:43:43,397 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 148 transitions, 2380 flow [2022-12-13 14:43:43,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:43,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:43,397 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:43,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-13 14:43:43,397 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:43,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:43,397 INFO L85 PathProgramCache]: Analyzing trace with hash -59858896, now seen corresponding path program 13 times [2022-12-13 14:43:43,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:43,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261989255] [2022-12-13 14:43:43,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:43,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:43,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:43,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261989255] [2022-12-13 14:43:43,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261989255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:43,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:43,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:43,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960903965] [2022-12-13 14:43:43,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:43,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:43,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:43,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:43,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:44,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:44,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 148 transitions, 2380 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:44,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:44,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:44,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:44,901 INFO L130 PetriNetUnfolder]: 49/284 cut-off events. [2022-12-13 14:43:44,901 INFO L131 PetriNetUnfolder]: For 3046/3046 co-relation queries the response was YES. [2022-12-13 14:43:44,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2430 conditions, 284 events. 49/284 cut-off events. For 3046/3046 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1957 event pairs, 13 based on Foata normal form. 6/290 useless extension candidates. Maximal degree in co-relation 2397. Up to 166 conditions per place. [2022-12-13 14:43:44,902 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 78 selfloop transitions, 59 changer transitions 11/148 dead transitions. [2022-12-13 14:43:44,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 148 transitions, 2593 flow [2022-12-13 14:43:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:43:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 14:43:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1735 transitions. [2022-12-13 14:43:44,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4333166833166833 [2022-12-13 14:43:44,904 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1735 transitions. [2022-12-13 14:43:44,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1735 transitions. [2022-12-13 14:43:44,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:44,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1735 transitions. [2022-12-13 14:43:44,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 123.92857142857143) internal successors, (1735), 14 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:44,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:44,907 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:44,907 INFO L175 Difference]: Start difference. First operand has 268 places, 148 transitions, 2380 flow. Second operand 14 states and 1735 transitions. [2022-12-13 14:43:44,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 148 transitions, 2593 flow [2022-12-13 14:43:44,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 148 transitions, 2411 flow, removed 4 selfloop flow, removed 19 redundant places. [2022-12-13 14:43:44,917 INFO L231 Difference]: Finished difference. Result has 253 places, 134 transitions, 2083 flow [2022-12-13 14:43:44,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2108, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2083, PETRI_PLACES=253, PETRI_TRANSITIONS=134} [2022-12-13 14:43:44,918 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 224 predicate places. [2022-12-13 14:43:44,918 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 134 transitions, 2083 flow [2022-12-13 14:43:44,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:44,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:44,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:44,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-13 14:43:44,918 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:44,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1212221499, now seen corresponding path program 13 times [2022-12-13 14:43:44,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:44,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437649336] [2022-12-13 14:43:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:44,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:45,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:45,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437649336] [2022-12-13 14:43:45,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437649336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:45,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:45,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:45,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714655826] [2022-12-13 14:43:45,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:45,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:45,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:45,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:45,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:45,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:45,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 134 transitions, 2083 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:45,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:45,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:45,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:45,813 INFO L130 PetriNetUnfolder]: 48/263 cut-off events. [2022-12-13 14:43:45,813 INFO L131 PetriNetUnfolder]: For 2598/2598 co-relation queries the response was YES. [2022-12-13 14:43:45,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2253 conditions, 263 events. 48/263 cut-off events. For 2598/2598 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1732 event pairs, 15 based on Foata normal form. 2/265 useless extension candidates. Maximal degree in co-relation 2225. Up to 95 conditions per place. [2022-12-13 14:43:45,814 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 87 selfloop transitions, 47 changer transitions 8/142 dead transitions. [2022-12-13 14:43:45,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 142 transitions, 2375 flow [2022-12-13 14:43:45,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:45,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:45,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1436 transitions. [2022-12-13 14:43:45,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4564526382708201 [2022-12-13 14:43:45,815 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1436 transitions. [2022-12-13 14:43:45,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1436 transitions. [2022-12-13 14:43:45,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:45,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1436 transitions. [2022-12-13 14:43:45,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.54545454545453) internal successors, (1436), 11 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:45,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:45,818 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:45,818 INFO L175 Difference]: Start difference. First operand has 253 places, 134 transitions, 2083 flow. Second operand 11 states and 1436 transitions. [2022-12-13 14:43:45,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 142 transitions, 2375 flow [2022-12-13 14:43:45,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 142 transitions, 2185 flow, removed 0 selfloop flow, removed 19 redundant places. [2022-12-13 14:43:45,826 INFO L231 Difference]: Finished difference. Result has 239 places, 127 transitions, 1910 flow [2022-12-13 14:43:45,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1910, PETRI_PLACES=239, PETRI_TRANSITIONS=127} [2022-12-13 14:43:45,827 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 210 predicate places. [2022-12-13 14:43:45,827 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 127 transitions, 1910 flow [2022-12-13 14:43:45,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:45,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:45,827 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:45,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-13 14:43:45,827 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:45,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:45,828 INFO L85 PathProgramCache]: Analyzing trace with hash -98570761, now seen corresponding path program 14 times [2022-12-13 14:43:45,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:45,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054192212] [2022-12-13 14:43:45,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:45,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:46,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:46,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054192212] [2022-12-13 14:43:46,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054192212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:46,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:46,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:46,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144238961] [2022-12-13 14:43:46,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:46,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:46,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:46,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:46,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 127 transitions, 1910 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:46,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:46,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:46,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:46,797 INFO L130 PetriNetUnfolder]: 46/253 cut-off events. [2022-12-13 14:43:46,797 INFO L131 PetriNetUnfolder]: For 2394/2394 co-relation queries the response was YES. [2022-12-13 14:43:46,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2160 conditions, 253 events. 46/253 cut-off events. For 2394/2394 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1667 event pairs, 18 based on Foata normal form. 4/257 useless extension candidates. Maximal degree in co-relation 2135. Up to 142 conditions per place. [2022-12-13 14:43:46,798 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 102 selfloop transitions, 27 changer transitions 8/137 dead transitions. [2022-12-13 14:43:46,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 137 transitions, 2231 flow [2022-12-13 14:43:46,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:43:46,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:43:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1309 transitions. [2022-12-13 14:43:46,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4576923076923077 [2022-12-13 14:43:46,799 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1309 transitions. [2022-12-13 14:43:46,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1309 transitions. [2022-12-13 14:43:46,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:46,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1309 transitions. [2022-12-13 14:43:46,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 130.9) internal successors, (1309), 10 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:46,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:46,802 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:46,802 INFO L175 Difference]: Start difference. First operand has 239 places, 127 transitions, 1910 flow. Second operand 10 states and 1309 transitions. [2022-12-13 14:43:46,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 137 transitions, 2231 flow [2022-12-13 14:43:46,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 137 transitions, 2117 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-12-13 14:43:46,809 INFO L231 Difference]: Finished difference. Result has 231 places, 123 transitions, 1805 flow [2022-12-13 14:43:46,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1805, PETRI_PLACES=231, PETRI_TRANSITIONS=123} [2022-12-13 14:43:46,809 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 202 predicate places. [2022-12-13 14:43:46,810 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 123 transitions, 1805 flow [2022-12-13 14:43:46,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:46,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:46,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:46,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-13 14:43:46,810 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:46,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:46,810 INFO L85 PathProgramCache]: Analyzing trace with hash -68183941, now seen corresponding path program 15 times [2022-12-13 14:43:46,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:46,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132036653] [2022-12-13 14:43:46,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:46,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:47,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:47,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132036653] [2022-12-13 14:43:47,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132036653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:47,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:47,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569625198] [2022-12-13 14:43:47,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:47,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:47,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:47,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:47,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 14:43:47,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 123 transitions, 1805 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:47,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:47,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 14:43:47,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:47,725 INFO L130 PetriNetUnfolder]: 43/234 cut-off events. [2022-12-13 14:43:47,725 INFO L131 PetriNetUnfolder]: For 2289/2289 co-relation queries the response was YES. [2022-12-13 14:43:47,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1961 conditions, 234 events. 43/234 cut-off events. For 2289/2289 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1486 event pairs, 15 based on Foata normal form. 6/240 useless extension candidates. Maximal degree in co-relation 1937. Up to 142 conditions per place. [2022-12-13 14:43:47,726 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 95 selfloop transitions, 20 changer transitions 15/130 dead transitions. [2022-12-13 14:43:47,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 130 transitions, 2043 flow [2022-12-13 14:43:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:43:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:43:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1311 transitions. [2022-12-13 14:43:47,727 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4583916083916084 [2022-12-13 14:43:47,727 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1311 transitions. [2022-12-13 14:43:47,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1311 transitions. [2022-12-13 14:43:47,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:47,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1311 transitions. [2022-12-13 14:43:47,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 131.1) internal successors, (1311), 10 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:47,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:47,729 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:47,729 INFO L175 Difference]: Start difference. First operand has 231 places, 123 transitions, 1805 flow. Second operand 10 states and 1311 transitions. [2022-12-13 14:43:47,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 130 transitions, 2043 flow [2022-12-13 14:43:47,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 130 transitions, 1947 flow, removed 1 selfloop flow, removed 11 redundant places. [2022-12-13 14:43:47,736 INFO L231 Difference]: Finished difference. Result has 224 places, 108 transitions, 1565 flow [2022-12-13 14:43:47,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1665, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1565, PETRI_PLACES=224, PETRI_TRANSITIONS=108} [2022-12-13 14:43:47,737 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 195 predicate places. [2022-12-13 14:43:47,737 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 108 transitions, 1565 flow [2022-12-13 14:43:47,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:47,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:47,737 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:47,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-13 14:43:47,737 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:47,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:47,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1884198167, now seen corresponding path program 16 times [2022-12-13 14:43:47,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:47,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422661942] [2022-12-13 14:43:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:47,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:48,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:48,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422661942] [2022-12-13 14:43:48,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422661942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:48,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:48,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:48,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559582687] [2022-12-13 14:43:48,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:48,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:48,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:48,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:48,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:48,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:48,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 108 transitions, 1565 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:48,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:48,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:48,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:49,290 INFO L130 PetriNetUnfolder]: 42/212 cut-off events. [2022-12-13 14:43:49,290 INFO L131 PetriNetUnfolder]: For 1933/1933 co-relation queries the response was YES. [2022-12-13 14:43:49,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 212 events. 42/212 cut-off events. For 1933/1933 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1254 event pairs, 15 based on Foata normal form. 2/214 useless extension candidates. Maximal degree in co-relation 1770. Up to 140 conditions per place. [2022-12-13 14:43:49,291 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 70 selfloop transitions, 36 changer transitions 10/116 dead transitions. [2022-12-13 14:43:49,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 116 transitions, 1849 flow [2022-12-13 14:43:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:43:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:43:49,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1465 transitions. [2022-12-13 14:43:49,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42686480186480186 [2022-12-13 14:43:49,292 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1465 transitions. [2022-12-13 14:43:49,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1465 transitions. [2022-12-13 14:43:49,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:49,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1465 transitions. [2022-12-13 14:43:49,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.08333333333333) internal successors, (1465), 12 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:49,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:49,295 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:49,295 INFO L175 Difference]: Start difference. First operand has 224 places, 108 transitions, 1565 flow. Second operand 12 states and 1465 transitions. [2022-12-13 14:43:49,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 116 transitions, 1849 flow [2022-12-13 14:43:49,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 116 transitions, 1758 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-12-13 14:43:49,301 INFO L231 Difference]: Finished difference. Result has 208 places, 102 transitions, 1473 flow [2022-12-13 14:43:49,301 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1473, PETRI_PLACES=208, PETRI_TRANSITIONS=102} [2022-12-13 14:43:49,301 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 179 predicate places. [2022-12-13 14:43:49,301 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 102 transitions, 1473 flow [2022-12-13 14:43:49,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:49,302 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:49,302 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:49,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-13 14:43:49,302 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -382776901, now seen corresponding path program 17 times [2022-12-13 14:43:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:49,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019920515] [2022-12-13 14:43:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:49,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:49,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019920515] [2022-12-13 14:43:49,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019920515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:49,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:49,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:49,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368710172] [2022-12-13 14:43:49,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:49,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:49,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:49,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:49,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:49,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 286 [2022-12-13 14:43:49,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 102 transitions, 1473 flow. Second operand has 10 states, 10 states have (on average 124.2) internal successors, (1242), 10 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:49,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:49,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 286 [2022-12-13 14:43:49,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:50,346 INFO L130 PetriNetUnfolder]: 37/193 cut-off events. [2022-12-13 14:43:50,347 INFO L131 PetriNetUnfolder]: For 1596/1596 co-relation queries the response was YES. [2022-12-13 14:43:50,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 193 events. 37/193 cut-off events. For 1596/1596 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1118 event pairs, 12 based on Foata normal form. 2/195 useless extension candidates. Maximal degree in co-relation 1615. Up to 132 conditions per place. [2022-12-13 14:43:50,347 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 80 selfloop transitions, 23 changer transitions 8/111 dead transitions. [2022-12-13 14:43:50,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 111 transitions, 1717 flow [2022-12-13 14:43:50,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:43:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:43:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1515 transitions. [2022-12-13 14:43:50,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44143356643356646 [2022-12-13 14:43:50,349 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1515 transitions. [2022-12-13 14:43:50,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1515 transitions. [2022-12-13 14:43:50,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:50,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1515 transitions. [2022-12-13 14:43:50,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 126.25) internal successors, (1515), 12 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:50,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:50,352 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:50,352 INFO L175 Difference]: Start difference. First operand has 208 places, 102 transitions, 1473 flow. Second operand 12 states and 1515 transitions. [2022-12-13 14:43:50,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 111 transitions, 1717 flow [2022-12-13 14:43:50,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 111 transitions, 1640 flow, removed 2 selfloop flow, removed 9 redundant places. [2022-12-13 14:43:50,358 INFO L231 Difference]: Finished difference. Result has 205 places, 98 transitions, 1387 flow [2022-12-13 14:43:50,358 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1387, PETRI_PLACES=205, PETRI_TRANSITIONS=98} [2022-12-13 14:43:50,359 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 176 predicate places. [2022-12-13 14:43:50,359 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 98 transitions, 1387 flow [2022-12-13 14:43:50,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.2) internal successors, (1242), 10 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:50,359 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:50,359 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:50,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-13 14:43:50,359 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:50,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:50,360 INFO L85 PathProgramCache]: Analyzing trace with hash -403332691, now seen corresponding path program 18 times [2022-12-13 14:43:50,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:50,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000996732] [2022-12-13 14:43:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:50,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:50,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:50,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000996732] [2022-12-13 14:43:50,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000996732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:50,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:50,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:50,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025834855] [2022-12-13 14:43:50,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:50,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:51,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:51,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 98 transitions, 1387 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:51,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:51,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:51,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:51,710 INFO L130 PetriNetUnfolder]: 33/179 cut-off events. [2022-12-13 14:43:51,710 INFO L131 PetriNetUnfolder]: For 1483/1483 co-relation queries the response was YES. [2022-12-13 14:43:51,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 179 events. 33/179 cut-off events. For 1483/1483 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 996 event pairs, 11 based on Foata normal form. 2/181 useless extension candidates. Maximal degree in co-relation 1500. Up to 108 conditions per place. [2022-12-13 14:43:51,711 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 62 selfloop transitions, 34 changer transitions 7/103 dead transitions. [2022-12-13 14:43:51,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 103 transitions, 1584 flow [2022-12-13 14:43:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:43:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:43:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1466 transitions. [2022-12-13 14:43:51,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42715617715617715 [2022-12-13 14:43:51,712 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1466 transitions. [2022-12-13 14:43:51,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1466 transitions. [2022-12-13 14:43:51,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:51,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1466 transitions. [2022-12-13 14:43:51,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.16666666666667) internal successors, (1466), 12 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:51,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:51,714 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:51,715 INFO L175 Difference]: Start difference. First operand has 205 places, 98 transitions, 1387 flow. Second operand 12 states and 1466 transitions. [2022-12-13 14:43:51,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 103 transitions, 1584 flow [2022-12-13 14:43:51,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 103 transitions, 1534 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-12-13 14:43:51,720 INFO L231 Difference]: Finished difference. Result has 203 places, 92 transitions, 1334 flow [2022-12-13 14:43:51,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1334, PETRI_PLACES=203, PETRI_TRANSITIONS=92} [2022-12-13 14:43:51,720 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 174 predicate places. [2022-12-13 14:43:51,720 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 92 transitions, 1334 flow [2022-12-13 14:43:51,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:51,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:51,720 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:51,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-13 14:43:51,720 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:51,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:51,721 INFO L85 PathProgramCache]: Analyzing trace with hash -319020119, now seen corresponding path program 19 times [2022-12-13 14:43:51,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:51,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705619880] [2022-12-13 14:43:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:52,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:52,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:52,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705619880] [2022-12-13 14:43:52,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705619880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:52,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:52,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943896909] [2022-12-13 14:43:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:52,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:52,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:52,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:52,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 92 transitions, 1334 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:52,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:52,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:52,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:53,116 INFO L130 PetriNetUnfolder]: 32/169 cut-off events. [2022-12-13 14:43:53,116 INFO L131 PetriNetUnfolder]: For 1473/1473 co-relation queries the response was YES. [2022-12-13 14:43:53,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 169 events. 32/169 cut-off events. For 1473/1473 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 903 event pairs, 10 based on Foata normal form. 2/171 useless extension candidates. Maximal degree in co-relation 1447. Up to 108 conditions per place. [2022-12-13 14:43:53,117 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 56 selfloop transitions, 27 changer transitions 13/96 dead transitions. [2022-12-13 14:43:53,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 96 transitions, 1517 flow [2022-12-13 14:43:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1342 transitions. [2022-12-13 14:43:53,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42657342657342656 [2022-12-13 14:43:53,120 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1342 transitions. [2022-12-13 14:43:53,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1342 transitions. [2022-12-13 14:43:53,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:53,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1342 transitions. [2022-12-13 14:43:53,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 122.0) internal successors, (1342), 11 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) [2022-12-13 14:43:53,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:53,124 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:53,124 INFO L175 Difference]: Start difference. First operand has 203 places, 92 transitions, 1334 flow. Second operand 11 states and 1342 transitions. [2022-12-13 14:43:53,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 96 transitions, 1517 flow [2022-12-13 14:43:53,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 96 transitions, 1441 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-13 14:43:53,133 INFO L231 Difference]: Finished difference. Result has 194 places, 82 transitions, 1215 flow [2022-12-13 14:43:53,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1215, PETRI_PLACES=194, PETRI_TRANSITIONS=82} [2022-12-13 14:43:53,133 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 165 predicate places. [2022-12-13 14:43:53,133 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 82 transitions, 1215 flow [2022-12-13 14:43:53,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:53,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:53,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:53,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-13 14:43:53,134 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1015605025, now seen corresponding path program 20 times [2022-12-13 14:43:53,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:53,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525581960] [2022-12-13 14:43:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:53,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:53,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525581960] [2022-12-13 14:43:53,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525581960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670422145] [2022-12-13 14:43:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:53,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:53,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:54,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:43:54,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 82 transitions, 1215 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:54,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:54,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:43:54,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:54,505 INFO L130 PetriNetUnfolder]: 27/148 cut-off events. [2022-12-13 14:43:54,505 INFO L131 PetriNetUnfolder]: For 1426/1426 co-relation queries the response was YES. [2022-12-13 14:43:54,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1298 conditions, 148 events. 27/148 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 767 event pairs, 8 based on Foata normal form. 4/152 useless extension candidates. Maximal degree in co-relation 1278. Up to 43 conditions per place. [2022-12-13 14:43:54,506 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 53 selfloop transitions, 23 changer transitions 12/88 dead transitions. [2022-12-13 14:43:54,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 88 transitions, 1353 flow [2022-12-13 14:43:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:43:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 14:43:54,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1709 transitions. [2022-12-13 14:43:54,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42682317682317683 [2022-12-13 14:43:54,507 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1709 transitions. [2022-12-13 14:43:54,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1709 transitions. [2022-12-13 14:43:54,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:54,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1709 transitions. [2022-12-13 14:43:54,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 122.07142857142857) internal successors, (1709), 14 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:54,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:54,510 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 286.0) internal successors, (4290), 15 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:54,510 INFO L175 Difference]: Start difference. First operand has 194 places, 82 transitions, 1215 flow. Second operand 14 states and 1709 transitions. [2022-12-13 14:43:54,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 88 transitions, 1353 flow [2022-12-13 14:43:54,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 88 transitions, 1250 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-12-13 14:43:54,514 INFO L231 Difference]: Finished difference. Result has 179 places, 70 transitions, 982 flow [2022-12-13 14:43:54,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=982, PETRI_PLACES=179, PETRI_TRANSITIONS=70} [2022-12-13 14:43:54,515 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 150 predicate places. [2022-12-13 14:43:54,515 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 70 transitions, 982 flow [2022-12-13 14:43:54,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:54,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:54,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:54,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-13 14:43:54,515 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:54,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:54,515 INFO L85 PathProgramCache]: Analyzing trace with hash 146621514, now seen corresponding path program 14 times [2022-12-13 14:43:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:54,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099192415] [2022-12-13 14:43:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:54,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:55,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:55,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099192415] [2022-12-13 14:43:55,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099192415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:55,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:55,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:55,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363743966] [2022-12-13 14:43:55,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:55,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:55,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:55,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:55,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:55,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 70 transitions, 982 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:55,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:55,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:55,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:55,956 INFO L130 PetriNetUnfolder]: 25/128 cut-off events. [2022-12-13 14:43:55,956 INFO L131 PetriNetUnfolder]: For 1033/1033 co-relation queries the response was YES. [2022-12-13 14:43:55,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 128 events. 25/128 cut-off events. For 1033/1033 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 610 event pairs, 7 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 1099. Up to 36 conditions per place. [2022-12-13 14:43:55,956 INFO L137 encePairwiseOnDemand]: 274/286 looper letters, 35 selfloop transitions, 34 changer transitions 7/76 dead transitions. [2022-12-13 14:43:55,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 76 transitions, 1116 flow [2022-12-13 14:43:55,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:43:55,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 14:43:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1981 transitions. [2022-12-13 14:43:55,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43291083916083917 [2022-12-13 14:43:55,958 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1981 transitions. [2022-12-13 14:43:55,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1981 transitions. [2022-12-13 14:43:55,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:55,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1981 transitions. [2022-12-13 14:43:55,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.8125) internal successors, (1981), 16 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:55,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:55,961 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:55,961 INFO L175 Difference]: Start difference. First operand has 179 places, 70 transitions, 982 flow. Second operand 16 states and 1981 transitions. [2022-12-13 14:43:55,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 76 transitions, 1116 flow [2022-12-13 14:43:55,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 76 transitions, 1052 flow, removed 1 selfloop flow, removed 14 redundant places. [2022-12-13 14:43:55,965 INFO L231 Difference]: Finished difference. Result has 170 places, 62 transitions, 875 flow [2022-12-13 14:43:55,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=875, PETRI_PLACES=170, PETRI_TRANSITIONS=62} [2022-12-13 14:43:55,965 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 141 predicate places. [2022-12-13 14:43:55,965 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 62 transitions, 875 flow [2022-12-13 14:43:55,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:55,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:55,965 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:55,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-13 14:43:55,966 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:55,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:55,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1797175575, now seen corresponding path program 21 times [2022-12-13 14:43:55,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:55,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100110258] [2022-12-13 14:43:55,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:55,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:56,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:56,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100110258] [2022-12-13 14:43:56,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100110258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:56,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:56,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:43:56,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724367477] [2022-12-13 14:43:56,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:56,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:43:56,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:56,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:43:56,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:43:56,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 286 [2022-12-13 14:43:56,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 62 transitions, 875 flow. Second operand has 10 states, 10 states have (on average 124.2) internal successors, (1242), 10 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:56,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:56,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 286 [2022-12-13 14:43:56,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:56,997 INFO L130 PetriNetUnfolder]: 28/143 cut-off events. [2022-12-13 14:43:56,998 INFO L131 PetriNetUnfolder]: For 941/941 co-relation queries the response was YES. [2022-12-13 14:43:56,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 143 events. 28/143 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 725 event pairs, 8 based on Foata normal form. 2/145 useless extension candidates. Maximal degree in co-relation 1250. Up to 92 conditions per place. [2022-12-13 14:43:56,998 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 57 selfloop transitions, 23 changer transitions 5/85 dead transitions. [2022-12-13 14:43:56,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 85 transitions, 1273 flow [2022-12-13 14:43:56,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:43:56,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:43:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1264 transitions. [2022-12-13 14:43:56,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44195804195804195 [2022-12-13 14:43:56,999 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1264 transitions. [2022-12-13 14:43:57,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1264 transitions. [2022-12-13 14:43:57,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:57,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1264 transitions. [2022-12-13 14:43:57,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.4) internal successors, (1264), 10 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:57,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:57,002 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:57,002 INFO L175 Difference]: Start difference. First operand has 170 places, 62 transitions, 875 flow. Second operand 10 states and 1264 transitions. [2022-12-13 14:43:57,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 85 transitions, 1273 flow [2022-12-13 14:43:57,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 85 transitions, 1122 flow, removed 4 selfloop flow, removed 21 redundant places. [2022-12-13 14:43:57,005 INFO L231 Difference]: Finished difference. Result has 156 places, 69 transitions, 935 flow [2022-12-13 14:43:57,005 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=935, PETRI_PLACES=156, PETRI_TRANSITIONS=69} [2022-12-13 14:43:57,005 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 127 predicate places. [2022-12-13 14:43:57,005 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 69 transitions, 935 flow [2022-12-13 14:43:57,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.2) internal successors, (1242), 10 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:57,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:57,006 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:57,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-13 14:43:57,006 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:57,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:57,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2065238933, now seen corresponding path program 22 times [2022-12-13 14:43:57,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:57,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398428642] [2022-12-13 14:43:57,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:57,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:57,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:57,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398428642] [2022-12-13 14:43:57,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398428642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:57,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:57,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 14:43:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082902631] [2022-12-13 14:43:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:57,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:43:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:57,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:43:57,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:43:57,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 286 [2022-12-13 14:43:57,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 69 transitions, 935 flow. Second operand has 11 states, 11 states have (on average 123.0909090909091) internal successors, (1354), 11 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:57,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:57,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 286 [2022-12-13 14:43:57,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:58,410 INFO L130 PetriNetUnfolder]: 27/135 cut-off events. [2022-12-13 14:43:58,410 INFO L131 PetriNetUnfolder]: For 865/865 co-relation queries the response was YES. [2022-12-13 14:43:58,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 135 events. 27/135 cut-off events. For 865/865 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 664 event pairs, 9 based on Foata normal form. 2/137 useless extension candidates. Maximal degree in co-relation 1147. Up to 41 conditions per place. [2022-12-13 14:43:58,411 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 40 selfloop transitions, 36 changer transitions 0/76 dead transitions. [2022-12-13 14:43:58,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 76 transitions, 1085 flow [2022-12-13 14:43:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:43:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:43:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1502 transitions. [2022-12-13 14:43:58,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4376456876456876 [2022-12-13 14:43:58,412 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1502 transitions. [2022-12-13 14:43:58,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1502 transitions. [2022-12-13 14:43:58,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:58,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1502 transitions. [2022-12-13 14:43:58,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 125.16666666666667) internal successors, (1502), 12 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:58,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:58,419 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:58,419 INFO L175 Difference]: Start difference. First operand has 156 places, 69 transitions, 935 flow. Second operand 12 states and 1502 transitions. [2022-12-13 14:43:58,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 76 transitions, 1085 flow [2022-12-13 14:43:58,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 76 transitions, 1051 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 14:43:58,421 INFO L231 Difference]: Finished difference. Result has 160 places, 69 transitions, 959 flow [2022-12-13 14:43:58,422 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=959, PETRI_PLACES=160, PETRI_TRANSITIONS=69} [2022-12-13 14:43:58,422 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 131 predicate places. [2022-12-13 14:43:58,422 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 69 transitions, 959 flow [2022-12-13 14:43:58,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 123.0909090909091) internal successors, (1354), 11 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:58,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:58,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:58,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-13 14:43:58,422 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1758704248, now seen corresponding path program 15 times [2022-12-13 14:43:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:58,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502149642] [2022-12-13 14:43:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:58,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:58,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502149642] [2022-12-13 14:43:58,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502149642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:58,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:58,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:43:58,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610497064] [2022-12-13 14:43:58,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:43:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:43:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:59,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:43:59,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 69 transitions, 959 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:59,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:43:59,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:43:59,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:43:59,984 INFO L130 PetriNetUnfolder]: 26/132 cut-off events. [2022-12-13 14:43:59,984 INFO L131 PetriNetUnfolder]: For 887/887 co-relation queries the response was YES. [2022-12-13 14:43:59,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136 conditions, 132 events. 26/132 cut-off events. For 887/887 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 640 event pairs, 9 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 1119. Up to 91 conditions per place. [2022-12-13 14:43:59,984 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 41 selfloop transitions, 22 changer transitions 8/71 dead transitions. [2022-12-13 14:43:59,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 71 transitions, 1072 flow [2022-12-13 14:43:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:43:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:43:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1363 transitions. [2022-12-13 14:43:59,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.433248569612206 [2022-12-13 14:43:59,986 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1363 transitions. [2022-12-13 14:43:59,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1363 transitions. [2022-12-13 14:43:59,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:43:59,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1363 transitions. [2022-12-13 14:43:59,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 123.9090909090909) internal successors, (1363), 11 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:59,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:59,988 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:59,988 INFO L175 Difference]: Start difference. First operand has 160 places, 69 transitions, 959 flow. Second operand 11 states and 1363 transitions. [2022-12-13 14:43:59,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 71 transitions, 1072 flow [2022-12-13 14:43:59,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 71 transitions, 937 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-12-13 14:43:59,991 INFO L231 Difference]: Finished difference. Result has 159 places, 62 transitions, 756 flow [2022-12-13 14:43:59,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=756, PETRI_PLACES=159, PETRI_TRANSITIONS=62} [2022-12-13 14:43:59,991 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 130 predicate places. [2022-12-13 14:43:59,991 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 62 transitions, 756 flow [2022-12-13 14:43:59,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:59,991 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:43:59,992 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:43:59,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-13 14:43:59,992 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:43:59,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1317445298, now seen corresponding path program 16 times [2022-12-13 14:43:59,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:59,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262341592] [2022-12-13 14:43:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:59,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:00,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262341592] [2022-12-13 14:44:00,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262341592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:00,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:00,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696214356] [2022-12-13 14:44:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:00,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:00,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:00,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:01,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:44:01,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 62 transitions, 756 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:01,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:01,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:44:01,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:01,339 INFO L130 PetriNetUnfolder]: 23/115 cut-off events. [2022-12-13 14:44:01,339 INFO L131 PetriNetUnfolder]: For 549/549 co-relation queries the response was YES. [2022-12-13 14:44:01,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 115 events. 23/115 cut-off events. For 549/549 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 522 event pairs, 7 based on Foata normal form. 4/119 useless extension candidates. Maximal degree in co-relation 871. Up to 69 conditions per place. [2022-12-13 14:44:01,339 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 34 selfloop transitions, 15 changer transitions 15/64 dead transitions. [2022-12-13 14:44:01,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 64 transitions, 858 flow [2022-12-13 14:44:01,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:44:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:44:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1483 transitions. [2022-12-13 14:44:01,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4321095571095571 [2022-12-13 14:44:01,341 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1483 transitions. [2022-12-13 14:44:01,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1483 transitions. [2022-12-13 14:44:01,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:01,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1483 transitions. [2022-12-13 14:44:01,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.58333333333333) internal successors, (1483), 12 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:01,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:01,343 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:01,343 INFO L175 Difference]: Start difference. First operand has 159 places, 62 transitions, 756 flow. Second operand 12 states and 1483 transitions. [2022-12-13 14:44:01,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 64 transitions, 858 flow [2022-12-13 14:44:01,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 64 transitions, 769 flow, removed 2 selfloop flow, removed 13 redundant places. [2022-12-13 14:44:01,345 INFO L231 Difference]: Finished difference. Result has 144 places, 48 transitions, 550 flow [2022-12-13 14:44:01,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=550, PETRI_PLACES=144, PETRI_TRANSITIONS=48} [2022-12-13 14:44:01,345 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 115 predicate places. [2022-12-13 14:44:01,346 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 48 transitions, 550 flow [2022-12-13 14:44:01,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:01,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:01,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:01,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-13 14:44:01,346 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1799801351, now seen corresponding path program 23 times [2022-12-13 14:44:01,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624599145] [2022-12-13 14:44:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:01,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:01,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624599145] [2022-12-13 14:44:01,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624599145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:01,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:01,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:01,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691276854] [2022-12-13 14:44:01,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:01,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:01,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:01,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:01,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:02,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:44:02,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 48 transitions, 550 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:02,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:02,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:44:02,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:02,811 INFO L130 PetriNetUnfolder]: 20/90 cut-off events. [2022-12-13 14:44:02,811 INFO L131 PetriNetUnfolder]: For 360/360 co-relation queries the response was YES. [2022-12-13 14:44:02,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 90 events. 20/90 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 330 event pairs, 4 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 682. Up to 23 conditions per place. [2022-12-13 14:44:02,812 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 26 selfloop transitions, 22 changer transitions 5/53 dead transitions. [2022-12-13 14:44:02,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 53 transitions, 644 flow [2022-12-13 14:44:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:44:02,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:44:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1463 transitions. [2022-12-13 14:44:02,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42628205128205127 [2022-12-13 14:44:02,814 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1463 transitions. [2022-12-13 14:44:02,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1463 transitions. [2022-12-13 14:44:02,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:02,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1463 transitions. [2022-12-13 14:44:02,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 121.91666666666667) internal successors, (1463), 12 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:02,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:02,819 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:02,819 INFO L175 Difference]: Start difference. First operand has 144 places, 48 transitions, 550 flow. Second operand 12 states and 1463 transitions. [2022-12-13 14:44:02,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 53 transitions, 644 flow [2022-12-13 14:44:02,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 53 transitions, 579 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-12-13 14:44:02,822 INFO L231 Difference]: Finished difference. Result has 133 places, 44 transitions, 477 flow [2022-12-13 14:44:02,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=477, PETRI_PLACES=133, PETRI_TRANSITIONS=44} [2022-12-13 14:44:02,822 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 104 predicate places. [2022-12-13 14:44:02,822 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 44 transitions, 477 flow [2022-12-13 14:44:02,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:02,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:02,822 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:02,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-13 14:44:02,823 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:02,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1815021345, now seen corresponding path program 24 times [2022-12-13 14:44:02,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:02,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079960142] [2022-12-13 14:44:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:02,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:03,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:03,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079960142] [2022-12-13 14:44:03,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079960142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:03,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:03,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:03,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492489738] [2022-12-13 14:44:03,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:03,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:03,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:03,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:03,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:03,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:44:03,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 44 transitions, 477 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:03,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:03,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:44:03,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:04,206 INFO L130 PetriNetUnfolder]: 19/82 cut-off events. [2022-12-13 14:44:04,206 INFO L131 PetriNetUnfolder]: For 274/274 co-relation queries the response was YES. [2022-12-13 14:44:04,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 82 events. 19/82 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 273 event pairs, 3 based on Foata normal form. 2/84 useless extension candidates. Maximal degree in co-relation 598. Up to 23 conditions per place. [2022-12-13 14:44:04,207 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 23 selfloop transitions, 18 changer transitions 14/55 dead transitions. [2022-12-13 14:44:04,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 55 transitions, 635 flow [2022-12-13 14:44:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:44:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 14:44:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1585 transitions. [2022-12-13 14:44:04,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42630446476600325 [2022-12-13 14:44:04,208 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1585 transitions. [2022-12-13 14:44:04,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1585 transitions. [2022-12-13 14:44:04,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:04,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1585 transitions. [2022-12-13 14:44:04,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 121.92307692307692) internal successors, (1585), 13 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:04,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:04,211 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:04,211 INFO L175 Difference]: Start difference. First operand has 133 places, 44 transitions, 477 flow. Second operand 13 states and 1585 transitions. [2022-12-13 14:44:04,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 55 transitions, 635 flow [2022-12-13 14:44:04,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 55 transitions, 562 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-12-13 14:44:04,212 INFO L231 Difference]: Finished difference. Result has 128 places, 37 transitions, 373 flow [2022-12-13 14:44:04,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=373, PETRI_PLACES=128, PETRI_TRANSITIONS=37} [2022-12-13 14:44:04,213 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 99 predicate places. [2022-12-13 14:44:04,213 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 37 transitions, 373 flow [2022-12-13 14:44:04,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:04,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:04,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:04,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-13 14:44:04,213 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:04,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1537954531, now seen corresponding path program 25 times [2022-12-13 14:44:04,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:04,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657748559] [2022-12-13 14:44:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:04,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:04,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:04,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657748559] [2022-12-13 14:44:04,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657748559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:04,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:04,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:44:04,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138252649] [2022-12-13 14:44:04,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:04,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:44:04,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:04,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:44:04,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:44:05,010 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 286 [2022-12-13 14:44:05,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 37 transitions, 373 flow. Second operand has 10 states, 10 states have (on average 124.2) internal successors, (1242), 10 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:05,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:05,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 286 [2022-12-13 14:44:05,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:05,266 INFO L130 PetriNetUnfolder]: 13/66 cut-off events. [2022-12-13 14:44:05,266 INFO L131 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2022-12-13 14:44:05,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 66 events. 13/66 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 196 event pairs, 4 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 477. Up to 41 conditions per place. [2022-12-13 14:44:05,267 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 24 selfloop transitions, 7 changer transitions 14/45 dead transitions. [2022-12-13 14:44:05,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 45 transitions, 490 flow [2022-12-13 14:44:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:44:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:44:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1260 transitions. [2022-12-13 14:44:05,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4405594405594406 [2022-12-13 14:44:05,268 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1260 transitions. [2022-12-13 14:44:05,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1260 transitions. [2022-12-13 14:44:05,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:05,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1260 transitions. [2022-12-13 14:44:05,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:05,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:05,270 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:05,270 INFO L175 Difference]: Start difference. First operand has 128 places, 37 transitions, 373 flow. Second operand 10 states and 1260 transitions. [2022-12-13 14:44:05,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 45 transitions, 490 flow [2022-12-13 14:44:05,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 45 transitions, 446 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-12-13 14:44:05,271 INFO L231 Difference]: Finished difference. Result has 126 places, 30 transitions, 294 flow [2022-12-13 14:44:05,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=126, PETRI_TRANSITIONS=30} [2022-12-13 14:44:05,272 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 97 predicate places. [2022-12-13 14:44:05,272 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 30 transitions, 294 flow [2022-12-13 14:44:05,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.2) internal successors, (1242), 10 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:05,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:05,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:05,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-13 14:44:05,272 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1532618735, now seen corresponding path program 26 times [2022-12-13 14:44:05,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:05,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494294995] [2022-12-13 14:44:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:05,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:05,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:05,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494294995] [2022-12-13 14:44:05,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494294995] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:05,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:05,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177540208] [2022-12-13 14:44:05,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:05,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:05,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:05,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:05,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:06,294 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:44:06,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 30 transitions, 294 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:06,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:06,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:44:06,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:06,567 INFO L130 PetriNetUnfolder]: 9/47 cut-off events. [2022-12-13 14:44:06,567 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-12-13 14:44:06,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 47 events. 9/47 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 2 based on Foata normal form. 2/49 useless extension candidates. Maximal degree in co-relation 343. Up to 23 conditions per place. [2022-12-13 14:44:06,568 INFO L137 encePairwiseOnDemand]: 276/286 looper letters, 15 selfloop transitions, 6 changer transitions 13/34 dead transitions. [2022-12-13 14:44:06,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 34 transitions, 348 flow [2022-12-13 14:44:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:44:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 14:44:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1337 transitions. [2022-12-13 14:44:06,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4249841068022886 [2022-12-13 14:44:06,569 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1337 transitions. [2022-12-13 14:44:06,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1337 transitions. [2022-12-13 14:44:06,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:06,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1337 transitions. [2022-12-13 14:44:06,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 121.54545454545455) internal successors, (1337), 11 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:06,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:06,571 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 286.0) internal successors, (3432), 12 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:06,571 INFO L175 Difference]: Start difference. First operand has 126 places, 30 transitions, 294 flow. Second operand 11 states and 1337 transitions. [2022-12-13 14:44:06,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 34 transitions, 348 flow [2022-12-13 14:44:06,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 34 transitions, 318 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-12-13 14:44:06,572 INFO L231 Difference]: Finished difference. Result has 111 places, 20 transitions, 197 flow [2022-12-13 14:44:06,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=197, PETRI_PLACES=111, PETRI_TRANSITIONS=20} [2022-12-13 14:44:06,573 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 82 predicate places. [2022-12-13 14:44:06,573 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 20 transitions, 197 flow [2022-12-13 14:44:06,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:06,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:06,573 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:06,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-13 14:44:06,573 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2065238934, now seen corresponding path program 17 times [2022-12-13 14:44:06,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:06,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945725759] [2022-12-13 14:44:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:06,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:07,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:07,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945725759] [2022-12-13 14:44:07,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945725759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:07,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936293344] [2022-12-13 14:44:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:07,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:07,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:07,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:07,561 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:44:07,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 20 transitions, 197 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:07,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:07,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:44:07,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:07,895 INFO L130 PetriNetUnfolder]: 5/29 cut-off events. [2022-12-13 14:44:07,895 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-12-13 14:44:07,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 29 events. 5/29 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 1 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 208. Up to 9 conditions per place. [2022-12-13 14:44:07,895 INFO L137 encePairwiseOnDemand]: 275/286 looper letters, 5 selfloop transitions, 10 changer transitions 8/23 dead transitions. [2022-12-13 14:44:07,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 23 transitions, 219 flow [2022-12-13 14:44:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:44:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:44:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1475 transitions. [2022-12-13 14:44:07,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42977855477855476 [2022-12-13 14:44:07,897 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1475 transitions. [2022-12-13 14:44:07,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1475 transitions. [2022-12-13 14:44:07,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:07,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1475 transitions. [2022-12-13 14:44:07,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.91666666666667) internal successors, (1475), 12 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) [2022-12-13 14:44:07,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:07,899 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 286.0) internal successors, (3718), 13 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:07,899 INFO L175 Difference]: Start difference. First operand has 111 places, 20 transitions, 197 flow. Second operand 12 states and 1475 transitions. [2022-12-13 14:44:07,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 23 transitions, 219 flow [2022-12-13 14:44:07,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 23 transitions, 193 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-12-13 14:44:07,900 INFO L231 Difference]: Finished difference. Result has 92 places, 14 transitions, 123 flow [2022-12-13 14:44:07,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=123, PETRI_PLACES=92, PETRI_TRANSITIONS=14} [2022-12-13 14:44:07,900 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2022-12-13 14:44:07,900 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 14 transitions, 123 flow [2022-12-13 14:44:07,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:07,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:07,901 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:07,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-13 14:44:07,901 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:07,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:07,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2044683143, now seen corresponding path program 27 times [2022-12-13 14:44:07,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:07,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113359480] [2022-12-13 14:44:07,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:07,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:08,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:08,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113359480] [2022-12-13 14:44:08,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113359480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:08,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:08,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061178897] [2022-12-13 14:44:08,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:08,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:08,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 14:44:08,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 14 transitions, 123 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:08,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:08,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 14:44:08,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:09,233 INFO L130 PetriNetUnfolder]: 1/15 cut-off events. [2022-12-13 14:44:09,233 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 14:44:09,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 15 events. 1/15 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 113. Up to 7 conditions per place. [2022-12-13 14:44:09,233 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 5 selfloop transitions, 8 changer transitions 0/13 dead transitions. [2022-12-13 14:44:09,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 13 transitions, 125 flow [2022-12-13 14:44:09,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:44:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:44:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1204 transitions. [2022-12-13 14:44:09,234 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42097902097902096 [2022-12-13 14:44:09,234 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1204 transitions. [2022-12-13 14:44:09,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1204 transitions. [2022-12-13 14:44:09,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:09,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1204 transitions. [2022-12-13 14:44:09,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.4) internal successors, (1204), 10 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:09,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:09,236 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:09,236 INFO L175 Difference]: Start difference. First operand has 92 places, 14 transitions, 123 flow. Second operand 10 states and 1204 transitions. [2022-12-13 14:44:09,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 13 transitions, 125 flow [2022-12-13 14:44:09,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 13 transitions, 86 flow, removed 0 selfloop flow, removed 18 redundant places. [2022-12-13 14:44:09,237 INFO L231 Difference]: Finished difference. Result has 60 places, 13 transitions, 76 flow [2022-12-13 14:44:09,237 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=76, PETRI_PLACES=60, PETRI_TRANSITIONS=13} [2022-12-13 14:44:09,237 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2022-12-13 14:44:09,237 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 13 transitions, 76 flow [2022-12-13 14:44:09,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:09,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:44:09,237 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:09,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-13 14:44:09,238 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 14:44:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2044683144, now seen corresponding path program 18 times [2022-12-13 14:44:09,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:09,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462889881] [2022-12-13 14:44:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:09,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:09,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:09,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462889881] [2022-12-13 14:44:09,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462889881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:09,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:09,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:44:09,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918025820] [2022-12-13 14:44:09,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:09,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:09,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:09,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:09,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:10,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 286 [2022-12-13 14:44:10,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 13 transitions, 76 flow. Second operand has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:10,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:44:10,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 286 [2022-12-13 14:44:10,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:44:10,448 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-13 14:44:10,450 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:44:10,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/14 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 14:44:10,450 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-13 14:44:10,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 12 transitions, 69 flow [2022-12-13 14:44:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:44:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:44:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1223 transitions. [2022-12-13 14:44:10,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42762237762237765 [2022-12-13 14:44:10,451 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1223 transitions. [2022-12-13 14:44:10,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1223 transitions. [2022-12-13 14:44:10,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:44:10,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1223 transitions. [2022-12-13 14:44:10,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.3) internal successors, (1223), 10 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:10,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:10,454 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 286.0) internal successors, (3146), 11 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:10,454 INFO L175 Difference]: Start difference. First operand has 60 places, 13 transitions, 76 flow. Second operand 10 states and 1223 transitions. [2022-12-13 14:44:10,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 12 transitions, 69 flow [2022-12-13 14:44:10,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 12 transitions, 54 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-13 14:44:10,454 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2022-12-13 14:44:10,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2022-12-13 14:44:10,454 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 14:44:10,454 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2022-12-13 14:44:10,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:10,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-12-13 14:44:10,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-13 14:44:10,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 14:44:10,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 14:44:10,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 14:44:10,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 14:44:10,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 14:44:10,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 14:44:10,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-13 14:44:10,457 INFO L445 BasicCegarLoop]: Path program histogram: [27, 18, 8, 7, 4, 2, 2, 2, 2, 1, 1, 1] [2022-12-13 14:44:10,460 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:44:10,460 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:44:10,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:44:10 BasicIcfg [2022-12-13 14:44:10,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:44:10,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:44:10,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:44:10,463 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:44:10,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:42:32" (3/4) ... [2022-12-13 14:44:10,465 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:44:10,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-12-13 14:44:10,474 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-12-13 14:44:10,474 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 14:44:10,474 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 14:44:10,475 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:44:10,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:44:10,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:44:10,504 INFO L158 Benchmark]: Toolchain (without parser) took 98991.98ms. Allocated memory was 123.7MB in the beginning and 257.9MB in the end (delta: 134.2MB). Free memory was 84.4MB in the beginning and 204.9MB in the end (delta: -120.5MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,504 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:44:10,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.32ms. Allocated memory is still 123.7MB. Free memory was 84.4MB in the beginning and 82.5MB in the end (delta: 2.0MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.24ms. Allocated memory is still 123.7MB. Free memory was 82.5MB in the beginning and 79.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,505 INFO L158 Benchmark]: Boogie Preprocessor took 37.50ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 76.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,505 INFO L158 Benchmark]: RCFGBuilder took 541.01ms. Allocated memory is still 123.7MB. Free memory was 76.3MB in the beginning and 53.1MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,505 INFO L158 Benchmark]: TraceAbstraction took 97664.60ms. Allocated memory was 123.7MB in the beginning and 257.9MB in the end (delta: 134.2MB). Free memory was 52.1MB in the beginning and 208.1MB in the end (delta: -155.9MB). Peak memory consumption was 121.4MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,506 INFO L158 Benchmark]: Witness Printer took 40.80ms. Allocated memory is still 257.9MB. Free memory was 208.1MB in the beginning and 204.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:44:10,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.32ms. Allocated memory is still 123.7MB. Free memory was 84.4MB in the beginning and 82.5MB in the end (delta: 2.0MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.24ms. Allocated memory is still 123.7MB. Free memory was 82.5MB in the beginning and 79.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.50ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 76.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.01ms. Allocated memory is still 123.7MB. Free memory was 76.3MB in the beginning and 53.1MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 97664.60ms. Allocated memory was 123.7MB in the beginning and 257.9MB in the end (delta: 134.2MB). Free memory was 52.1MB in the beginning and 208.1MB in the end (delta: -155.9MB). Peak memory consumption was 121.4MB. Max. memory is 16.1GB. * Witness Printer took 40.80ms. Allocated memory is still 257.9MB. Free memory was 208.1MB in the beginning and 204.9MB in the end (delta: 3.2MB). 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: 5.7s, 134 PlacesBefore, 29 PlacesAfterwards, 129 TransitionsBefore, 23 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 123 TotalNumberOfCompositions, 5644 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2591, independent: 2400, independent conditional: 0, independent unconditional: 2400, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1642, independent: 1594, independent conditional: 0, independent unconditional: 1594, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2591, independent: 806, independent conditional: 0, independent unconditional: 806, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 1642, unknown conditional: 0, unknown unconditional: 1642] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1699]: 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, 172 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: 97.5s, OverallIterations: 75, TraceHistogramMax: 1, PathProgramHistogramMax: 27, EmptinessCheckTime: 0.0s, AutomataDifference: 60.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18784 SdHoareTripleChecker+Valid, 42.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15450 mSDsluCounter, 15131 SdHoareTripleChecker+Invalid, 36.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14741 mSDsCounter, 2364 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78410 IncrementalHoareTripleChecker+Invalid, 80774 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2364 mSolverCounterUnsat, 390 mSDtfsCounter, 78410 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1218 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3367occurred in iteration=45, InterpolantAutomatonStates: 956, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 29.6s InterpolantComputationTime, 786 NumberOfCodeBlocks, 786 NumberOfCodeBlocksAsserted, 75 NumberOfCheckSat, 711 ConstructedInterpolants, 0 QuantifiedInterpolants, 12377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 75 InterpolantComputations, 75 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! [2022-12-13 14:44:10,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff03ab78-6590-47d5-914b-6f1dc0771a7e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE