./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/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_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/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_9ab4f846-9e52-404f-a53b-f06176444521/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 fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- 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 20:52:00,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:52:00,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:52:00,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:52:00,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:52:00,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:52:00,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:52:00,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:52:00,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:52:00,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:52:00,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:52:00,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:52:00,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:52:00,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:52:00,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:52:00,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:52:00,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:52:00,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:52:00,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:52:00,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:52:00,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:52:00,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:52:00,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:52:00,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:52:00,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:52:00,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:52:00,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:52:00,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:52:00,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:52:00,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:52:00,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:52:00,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:52:00,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:52:00,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:52:00,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:52:00,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:52:00,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:52:00,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:52:00,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:52:00,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:52:00,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:52:00,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:52:00,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:52:00,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:52:00,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:52:00,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:52:00,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:52:00,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:52:00,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:52:00,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:52:00,228 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:52:00,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:52:00,229 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:52:00,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:52:00,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:00,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:52:00,231 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:52:00,232 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_9ab4f846-9e52-404f-a53b-f06176444521/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-12-13 20:52:00,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:52:00,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:52:00,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:52:00,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:52:00,419 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:52:00,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-12-13 20:52:02,945 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:52:03,146 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:52:03,146 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-12-13 20:52:03,157 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/data/2d8f7c919/1fb025a798eb41748c3e98ccfae10b45/FLAGd120f6d9d [2022-12-13 20:52:03,505 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/data/2d8f7c919/1fb025a798eb41748c3e98ccfae10b45 [2022-12-13 20:52:03,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:52:03,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:52:03,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:03,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:52:03,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:52:03,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:03" (1/1) ... [2022-12-13 20:52:03,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217dbe6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:03, skipping insertion in model container [2022-12-13 20:52:03,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:03" (1/1) ... [2022-12-13 20:52:03,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:52:03,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:52:04,049 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_9ab4f846-9e52-404f-a53b-f06176444521/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-12-13 20:52:04,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:04,082 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:52:04,114 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_9ab4f846-9e52-404f-a53b-f06176444521/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-12-13 20:52:04,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:04,202 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:52:04,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04 WrapperNode [2022-12-13 20:52:04,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:04,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:04,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:52:04,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:52:04,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,245 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-12-13 20:52:04,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:04,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:52:04,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:52:04,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:52:04,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:52:04,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:52:04,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:52:04,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:52:04,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (1/1) ... [2022-12-13 20:52:04,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:04,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:52:04,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:52:04,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:52:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:52:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:52:04,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 20:52:04,335 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:52:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:52:04,337 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 20:52:04,563 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:52:04,565 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:52:04,774 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:52:04,783 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:52:04,783 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:52:04,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:04 BoogieIcfgContainer [2022-12-13 20:52:04,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:52:04,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:52:04,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:52:04,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:52:04,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:52:03" (1/3) ... [2022-12-13 20:52:04,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782fccaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:04, skipping insertion in model container [2022-12-13 20:52:04,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:04" (2/3) ... [2022-12-13 20:52:04,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782fccaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:04, skipping insertion in model container [2022-12-13 20:52:04,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:04" (3/3) ... [2022-12-13 20:52:04,795 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-12-13 20:52:04,803 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:52:04,814 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:52:04,814 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:52:04,814 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:52:04,872 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:52:04,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 197 transitions, 410 flow [2022-12-13 20:52:04,985 INFO L130 PetriNetUnfolder]: 10/240 cut-off events. [2022-12-13 20:52:04,985 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:52:04,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 415 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-12-13 20:52:04,990 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 197 transitions, 410 flow [2022-12-13 20:52:04,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 335 flow [2022-12-13 20:52:04,998 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:52:05,008 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 163 transitions, 335 flow [2022-12-13 20:52:05,011 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 163 transitions, 335 flow [2022-12-13 20:52:05,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 163 transitions, 335 flow [2022-12-13 20:52:05,066 INFO L130 PetriNetUnfolder]: 4/163 cut-off events. [2022-12-13 20:52:05,066 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:52:05,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 163 events. 4/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-12-13 20:52:05,070 INFO L119 LiptonReduction]: Number of co-enabled transitions 4500 [2022-12-13 20:52:13,941 INFO L134 LiptonReduction]: Checked pairs total: 9640 [2022-12-13 20:52:13,941 INFO L136 LiptonReduction]: Total number of compositions: 169 [2022-12-13 20:52:13,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:52:13,958 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;@535dfc97, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:52:13,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 20:52:13,962 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 20:52:13,962 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:52:13,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:13,963 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:52:13,964 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 20:52:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:13,968 INFO L85 PathProgramCache]: Analyzing trace with hash 613208210, now seen corresponding path program 1 times [2022-12-13 20:52:13,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:13,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749493056] [2022-12-13 20:52:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:13,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:14,665 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 20:52:14,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:14,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749493056] [2022-12-13 20:52:14,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749493056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:14,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:14,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:52:14,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326146193] [2022-12-13 20:52:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:14,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:52:14,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:52:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:52:14,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 366 [2022-12-13 20:52:14,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:14,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:14,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 366 [2022-12-13 20:52:14,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:14,965 INFO L130 PetriNetUnfolder]: 194/361 cut-off events. [2022-12-13 20:52:14,965 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 20:52:14,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 361 events. 194/361 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1323 event pairs, 141 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 644. Up to 357 conditions per place. [2022-12-13 20:52:14,968 INFO L137 encePairwiseOnDemand]: 357/366 looper letters, 21 selfloop transitions, 8 changer transitions 0/29 dead transitions. [2022-12-13 20:52:14,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 125 flow [2022-12-13 20:52:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:52:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:52:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1034 transitions. [2022-12-13 20:52:14,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.470856102003643 [2022-12-13 20:52:14,987 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1034 transitions. [2022-12-13 20:52:14,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1034 transitions. [2022-12-13 20:52:14,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:14,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1034 transitions. [2022-12-13 20:52:14,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.33333333333334) internal successors, (1034), 6 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,004 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,005 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 63 flow. Second operand 6 states and 1034 transitions. [2022-12-13 20:52:15,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 125 flow [2022-12-13 20:52:15,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 20:52:15,009 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 97 flow [2022-12-13 20:52:15,010 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2022-12-13 20:52:15,013 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2022-12-13 20:52:15,013 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 97 flow [2022-12-13 20:52:15,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:15,014 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:52:15,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:52:15,014 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 20:52:15,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:15,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1829588829, now seen corresponding path program 1 times [2022-12-13 20:52:15,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:15,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533483478] [2022-12-13 20:52:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:15,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:15,500 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 20:52:15,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:15,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533483478] [2022-12-13 20:52:15,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533483478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:15,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:15,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:52:15,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002992718] [2022-12-13 20:52:15,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:15,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:52:15,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:52:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:52:15,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 366 [2022-12-13 20:52:15,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:15,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 366 [2022-12-13 20:52:15,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:15,829 INFO L130 PetriNetUnfolder]: 180/337 cut-off events. [2022-12-13 20:52:15,829 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-12-13 20:52:15,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 337 events. 180/337 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1228 event pairs, 52 based on Foata normal form. 5/292 useless extension candidates. Maximal degree in co-relation 666. Up to 294 conditions per place. [2022-12-13 20:52:15,831 INFO L137 encePairwiseOnDemand]: 358/366 looper letters, 33 selfloop transitions, 11 changer transitions 0/44 dead transitions. [2022-12-13 20:52:15,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 229 flow [2022-12-13 20:52:15,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:52:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:52:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1039 transitions. [2022-12-13 20:52:15,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4731329690346084 [2022-12-13 20:52:15,833 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1039 transitions. [2022-12-13 20:52:15,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1039 transitions. [2022-12-13 20:52:15,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:15,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1039 transitions. [2022-12-13 20:52:15,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,838 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 97 flow. Second operand 6 states and 1039 transitions. [2022-12-13 20:52:15,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 229 flow [2022-12-13 20:52:15,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:52:15,840 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 161 flow [2022-12-13 20:52:15,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=161, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2022-12-13 20:52:15,840 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2022-12-13 20:52:15,840 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 161 flow [2022-12-13 20:52:15,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:15,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:15,841 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:15,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:52:15,841 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 20:52:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:15,841 INFO L85 PathProgramCache]: Analyzing trace with hash 853175016, now seen corresponding path program 1 times [2022-12-13 20:52:15,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:15,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315396963] [2022-12-13 20:52:15,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:15,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:52:16,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:16,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315396963] [2022-12-13 20:52:16,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315396963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:16,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:16,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:52:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917755721] [2022-12-13 20:52:16,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:16,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:52:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:16,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:52:16,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:52:16,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 366 [2022-12-13 20:52:16,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:16,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:16,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 366 [2022-12-13 20:52:16,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:16,416 INFO L130 PetriNetUnfolder]: 168/317 cut-off events. [2022-12-13 20:52:16,416 INFO L131 PetriNetUnfolder]: For 170/170 co-relation queries the response was YES. [2022-12-13 20:52:16,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 317 events. 168/317 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1166 event pairs, 52 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 729. Up to 282 conditions per place. [2022-12-13 20:52:16,418 INFO L137 encePairwiseOnDemand]: 358/366 looper letters, 36 selfloop transitions, 11 changer transitions 0/47 dead transitions. [2022-12-13 20:52:16,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 47 transitions, 315 flow [2022-12-13 20:52:16,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:52:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:52:16,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1037 transitions. [2022-12-13 20:52:16,420 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2022-12-13 20:52:16,420 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1037 transitions. [2022-12-13 20:52:16,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1037 transitions. [2022-12-13 20:52:16,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:16,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1037 transitions. [2022-12-13 20:52:16,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:16,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:16,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:16,425 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 161 flow. Second operand 6 states and 1037 transitions. [2022-12-13 20:52:16,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 47 transitions, 315 flow [2022-12-13 20:52:16,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 47 transitions, 299 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-12-13 20:52:16,427 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 222 flow [2022-12-13 20:52:16,427 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=222, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-12-13 20:52:16,427 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2022-12-13 20:52:16,428 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 222 flow [2022-12-13 20:52:16,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:16,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:16,428 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:16,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:52:16,428 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 20:52:16,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:16,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1984790545, now seen corresponding path program 1 times [2022-12-13 20:52:16,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:16,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808223107] [2022-12-13 20:52:16,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:16,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:17,154 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 20:52:17,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:17,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808223107] [2022-12-13 20:52:17,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808223107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:17,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:17,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:52:17,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786389584] [2022-12-13 20:52:17,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:17,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:52:17,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:17,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:52:17,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:52:17,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 366 [2022-12-13 20:52:17,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 222 flow. Second operand has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:17,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:17,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 366 [2022-12-13 20:52:17,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:17,805 INFO L130 PetriNetUnfolder]: 216/397 cut-off events. [2022-12-13 20:52:17,805 INFO L131 PetriNetUnfolder]: For 209/209 co-relation queries the response was YES. [2022-12-13 20:52:17,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 397 events. 216/397 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1508 event pairs, 36 based on Foata normal form. 8/374 useless extension candidates. Maximal degree in co-relation 987. Up to 292 conditions per place. [2022-12-13 20:52:17,807 INFO L137 encePairwiseOnDemand]: 356/366 looper letters, 48 selfloop transitions, 18 changer transitions 0/66 dead transitions. [2022-12-13 20:52:17,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 66 transitions, 478 flow [2022-12-13 20:52:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:52:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:52:17,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1200 transitions. [2022-12-13 20:52:17,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.468384074941452 [2022-12-13 20:52:17,810 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1200 transitions. [2022-12-13 20:52:17,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1200 transitions. [2022-12-13 20:52:17,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:17,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1200 transitions. [2022-12-13 20:52:17,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.42857142857142) internal successors, (1200), 7 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:17,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 366.0) internal successors, (2928), 8 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:17,814 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 366.0) internal successors, (2928), 8 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:17,815 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 222 flow. Second operand 7 states and 1200 transitions. [2022-12-13 20:52:17,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 66 transitions, 478 flow [2022-12-13 20:52:17,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 66 transitions, 455 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 20:52:17,817 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 348 flow [2022-12-13 20:52:17,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=348, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2022-12-13 20:52:17,818 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 23 predicate places. [2022-12-13 20:52:17,818 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 348 flow [2022-12-13 20:52:17,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:17,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:17,818 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:17,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:52:17,818 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 20:52:17,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:17,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1979922069, now seen corresponding path program 1 times [2022-12-13 20:52:17,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:17,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978784665] [2022-12-13 20:52:17,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:18,188 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 20:52:18,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:18,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978784665] [2022-12-13 20:52:18,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978784665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:18,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:18,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:52:18,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478448555] [2022-12-13 20:52:18,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:18,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:52:18,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:18,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:52:18,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:52:18,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 366 [2022-12-13 20:52:18,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 348 flow. Second operand has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:18,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:18,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 366 [2022-12-13 20:52:18,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:18,900 INFO L130 PetriNetUnfolder]: 234/427 cut-off events. [2022-12-13 20:52:18,901 INFO L131 PetriNetUnfolder]: For 421/421 co-relation queries the response was YES. [2022-12-13 20:52:18,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 427 events. 234/427 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1656 event pairs, 40 based on Foata normal form. 4/400 useless extension candidates. Maximal degree in co-relation 1178. Up to 322 conditions per place. [2022-12-13 20:52:18,903 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 43 selfloop transitions, 32 changer transitions 0/75 dead transitions. [2022-12-13 20:52:18,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 75 transitions, 609 flow [2022-12-13 20:52:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:52:18,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:52:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2033 transitions. [2022-12-13 20:52:18,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46288706739526414 [2022-12-13 20:52:18,906 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2033 transitions. [2022-12-13 20:52:18,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2033 transitions. [2022-12-13 20:52:18,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:18,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2033 transitions. [2022-12-13 20:52:18,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 169.41666666666666) internal successors, (2033), 12 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:18,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:18,919 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:18,919 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 348 flow. Second operand 12 states and 2033 transitions. [2022-12-13 20:52:18,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 75 transitions, 609 flow [2022-12-13 20:52:18,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 75 transitions, 581 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 20:52:18,924 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 481 flow [2022-12-13 20:52:18,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=481, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2022-12-13 20:52:18,925 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 33 predicate places. [2022-12-13 20:52:18,925 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 481 flow [2022-12-13 20:52:18,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:18,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:18,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:18,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:52:18,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:18,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1984790619, now seen corresponding path program 2 times [2022-12-13 20:52:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:18,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720343161] [2022-12-13 20:52:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:18,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:19,278 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 20:52:19,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:19,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720343161] [2022-12-13 20:52:19,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720343161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:19,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:19,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:52:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308776543] [2022-12-13 20:52:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:19,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:52:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:19,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:52:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:52:19,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 366 [2022-12-13 20:52:19,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:19,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:19,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 366 [2022-12-13 20:52:19,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:19,487 INFO L130 PetriNetUnfolder]: 168/336 cut-off events. [2022-12-13 20:52:19,487 INFO L131 PetriNetUnfolder]: For 492/493 co-relation queries the response was YES. [2022-12-13 20:52:19,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 336 events. 168/336 cut-off events. For 492/493 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1345 event pairs, 65 based on Foata normal form. 9/316 useless extension candidates. Maximal degree in co-relation 997. Up to 173 conditions per place. [2022-12-13 20:52:19,490 INFO L137 encePairwiseOnDemand]: 359/366 looper letters, 42 selfloop transitions, 13 changer transitions 4/66 dead transitions. [2022-12-13 20:52:19,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 66 transitions, 559 flow [2022-12-13 20:52:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:52:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:52:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-12-13 20:52:19,493 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4913479052823315 [2022-12-13 20:52:19,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-12-13 20:52:19,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-12-13 20:52:19,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:19,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-12-13 20:52:19,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:19,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:19,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:19,500 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 481 flow. Second operand 6 states and 1079 transitions. [2022-12-13 20:52:19,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 66 transitions, 559 flow [2022-12-13 20:52:19,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 66 transitions, 493 flow, removed 11 selfloop flow, removed 8 redundant places. [2022-12-13 20:52:19,504 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 359 flow [2022-12-13 20:52:19,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=359, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2022-12-13 20:52:19,505 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2022-12-13 20:52:19,505 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 359 flow [2022-12-13 20:52:19,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:19,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:19,506 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:19,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:52:19,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash -437494979, now seen corresponding path program 3 times [2022-12-13 20:52:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:19,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593296443] [2022-12-13 20:52:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:19,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:19,873 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 20:52:19,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:19,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593296443] [2022-12-13 20:52:19,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593296443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:19,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:19,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:52:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237047345] [2022-12-13 20:52:19,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:19,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:52:19,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:19,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:52:19,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:52:20,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 366 [2022-12-13 20:52:20,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 359 flow. Second operand has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:20,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:20,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 366 [2022-12-13 20:52:20,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:20,634 INFO L130 PetriNetUnfolder]: 215/410 cut-off events. [2022-12-13 20:52:20,634 INFO L131 PetriNetUnfolder]: For 476/476 co-relation queries the response was YES. [2022-12-13 20:52:20,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 410 events. 215/410 cut-off events. For 476/476 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1629 event pairs, 69 based on Foata normal form. 8/385 useless extension candidates. Maximal degree in co-relation 1177. Up to 325 conditions per place. [2022-12-13 20:52:20,636 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 46 selfloop transitions, 23 changer transitions 0/69 dead transitions. [2022-12-13 20:52:20,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 585 flow [2022-12-13 20:52:20,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:52:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 20:52:20,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1529 transitions. [2022-12-13 20:52:20,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4641772920461445 [2022-12-13 20:52:20,638 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1529 transitions. [2022-12-13 20:52:20,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1529 transitions. [2022-12-13 20:52:20,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:20,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1529 transitions. [2022-12-13 20:52:20,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 169.88888888888889) internal successors, (1529), 9 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:20,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 366.0) internal successors, (3660), 10 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:20,644 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 366.0) internal successors, (3660), 10 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:20,644 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 359 flow. Second operand 9 states and 1529 transitions. [2022-12-13 20:52:20,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 585 flow [2022-12-13 20:52:20,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 69 transitions, 565 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 20:52:20,647 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 464 flow [2022-12-13 20:52:20,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=464, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2022-12-13 20:52:20,647 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 36 predicate places. [2022-12-13 20:52:20,647 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 464 flow [2022-12-13 20:52:20,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:20,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:20,648 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:20,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:52:20,648 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 20:52:20,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash -434925463, now seen corresponding path program 2 times [2022-12-13 20:52:20,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:20,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931130921] [2022-12-13 20:52:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:20,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,997 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 20:52:20,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:20,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931130921] [2022-12-13 20:52:20,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931130921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:20,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:20,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:52:20,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471373945] [2022-12-13 20:52:20,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:20,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:52:20,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:20,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:52:20,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:52:21,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 366 [2022-12-13 20:52:21,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 464 flow. Second operand has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:21,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:21,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 366 [2022-12-13 20:52:21,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:21,875 INFO L130 PetriNetUnfolder]: 209/405 cut-off events. [2022-12-13 20:52:21,875 INFO L131 PetriNetUnfolder]: For 620/620 co-relation queries the response was YES. [2022-12-13 20:52:21,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 405 events. 209/405 cut-off events. For 620/620 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1606 event pairs, 56 based on Foata normal form. 4/380 useless extension candidates. Maximal degree in co-relation 1266. Up to 306 conditions per place. [2022-12-13 20:52:21,877 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 44 selfloop transitions, 36 changer transitions 0/80 dead transitions. [2022-12-13 20:52:21,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 80 transitions, 736 flow [2022-12-13 20:52:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:52:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:52:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2365 transitions. [2022-12-13 20:52:21,880 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46155347384855583 [2022-12-13 20:52:21,880 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2365 transitions. [2022-12-13 20:52:21,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2365 transitions. [2022-12-13 20:52:21,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:21,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2365 transitions. [2022-12-13 20:52:21,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 168.92857142857142) internal successors, (2365), 14 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:21,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:21,888 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:21,889 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 464 flow. Second operand 14 states and 2365 transitions. [2022-12-13 20:52:21,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 80 transitions, 736 flow [2022-12-13 20:52:21,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 80 transitions, 697 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-13 20:52:21,892 INFO L231 Difference]: Finished difference. Result has 80 places, 64 transitions, 587 flow [2022-12-13 20:52:21,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=587, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2022-12-13 20:52:21,892 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 47 predicate places. [2022-12-13 20:52:21,893 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 587 flow [2022-12-13 20:52:21,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:21,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:21,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:21,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:52:21,893 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 20:52:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:21,894 INFO L85 PathProgramCache]: Analyzing trace with hash -426305219, now seen corresponding path program 4 times [2022-12-13 20:52:21,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:21,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757441106] [2022-12-13 20:52:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:21,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:22,200 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 20:52:22,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:22,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757441106] [2022-12-13 20:52:22,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757441106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:22,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:22,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:52:22,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941836421] [2022-12-13 20:52:22,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:22,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:52:22,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:22,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:52:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:52:22,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 366 [2022-12-13 20:52:22,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 587 flow. Second operand has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:22,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:22,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 366 [2022-12-13 20:52:22,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:22,858 INFO L130 PetriNetUnfolder]: 239/455 cut-off events. [2022-12-13 20:52:22,858 INFO L131 PetriNetUnfolder]: For 854/854 co-relation queries the response was YES. [2022-12-13 20:52:22,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1786 conditions, 455 events. 239/455 cut-off events. For 854/854 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1882 event pairs, 57 based on Foata normal form. 8/430 useless extension candidates. Maximal degree in co-relation 1401. Up to 352 conditions per place. [2022-12-13 20:52:22,860 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 50 selfloop transitions, 33 changer transitions 0/83 dead transitions. [2022-12-13 20:52:22,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 83 transitions, 851 flow [2022-12-13 20:52:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:52:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:52:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1863 transitions. [2022-12-13 20:52:22,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46274217585692995 [2022-12-13 20:52:22,863 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1863 transitions. [2022-12-13 20:52:22,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1863 transitions. [2022-12-13 20:52:22,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:22,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1863 transitions. [2022-12-13 20:52:22,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 169.36363636363637) internal successors, (1863), 11 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:22,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 366.0) internal successors, (4392), 12 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:22,870 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 366.0) internal successors, (4392), 12 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:22,870 INFO L175 Difference]: Start difference. First operand has 80 places, 64 transitions, 587 flow. Second operand 11 states and 1863 transitions. [2022-12-13 20:52:22,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 83 transitions, 851 flow [2022-12-13 20:52:22,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 83 transitions, 764 flow, removed 8 selfloop flow, removed 11 redundant places. [2022-12-13 20:52:22,873 INFO L231 Difference]: Finished difference. Result has 81 places, 70 transitions, 656 flow [2022-12-13 20:52:22,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=656, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2022-12-13 20:52:22,874 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 48 predicate places. [2022-12-13 20:52:22,874 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 70 transitions, 656 flow [2022-12-13 20:52:22,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:22,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:22,875 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:22,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:52:22,875 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:22,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:22,875 INFO L85 PathProgramCache]: Analyzing trace with hash -426305293, now seen corresponding path program 3 times [2022-12-13 20:52:22,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:22,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154521123] [2022-12-13 20:52:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:22,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:23,085 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 20:52:23,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:23,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154521123] [2022-12-13 20:52:23,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154521123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:23,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:23,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:52:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272132226] [2022-12-13 20:52:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:23,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:52:23,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:23,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:52:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:52:23,126 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 366 [2022-12-13 20:52:23,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 70 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:23,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:23,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 366 [2022-12-13 20:52:23,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:23,276 INFO L130 PetriNetUnfolder]: 129/283 cut-off events. [2022-12-13 20:52:23,276 INFO L131 PetriNetUnfolder]: For 568/568 co-relation queries the response was YES. [2022-12-13 20:52:23,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 283 events. 129/283 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1103 event pairs, 50 based on Foata normal form. 8/278 useless extension candidates. Maximal degree in co-relation 1017. Up to 151 conditions per place. [2022-12-13 20:52:23,279 INFO L137 encePairwiseOnDemand]: 359/366 looper letters, 45 selfloop transitions, 14 changer transitions 4/72 dead transitions. [2022-12-13 20:52:23,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 72 transitions, 739 flow [2022-12-13 20:52:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:52:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:52:23,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1076 transitions. [2022-12-13 20:52:23,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4899817850637523 [2022-12-13 20:52:23,280 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1076 transitions. [2022-12-13 20:52:23,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1076 transitions. [2022-12-13 20:52:23,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:23,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1076 transitions. [2022-12-13 20:52:23,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:23,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:23,284 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:23,284 INFO L175 Difference]: Start difference. First operand has 81 places, 70 transitions, 656 flow. Second operand 6 states and 1076 transitions. [2022-12-13 20:52:23,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 72 transitions, 739 flow [2022-12-13 20:52:23,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 689 flow, removed 13 selfloop flow, removed 8 redundant places. [2022-12-13 20:52:23,288 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 533 flow [2022-12-13 20:52:23,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=533, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2022-12-13 20:52:23,288 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 44 predicate places. [2022-12-13 20:52:23,288 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 533 flow [2022-12-13 20:52:23,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:23,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:23,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:23,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:52:23,289 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:23,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:23,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1352622042, now seen corresponding path program 1 times [2022-12-13 20:52:23,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:23,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761451102] [2022-12-13 20:52:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:23,857 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 20:52:23,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:23,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761451102] [2022-12-13 20:52:23,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761451102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:23,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:23,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:52:23,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666891618] [2022-12-13 20:52:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:23,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:52:23,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:23,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:52:23,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:52:24,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:24,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 533 flow. Second operand has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:24,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:24,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:24,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:24,798 INFO L130 PetriNetUnfolder]: 124/271 cut-off events. [2022-12-13 20:52:24,798 INFO L131 PetriNetUnfolder]: For 610/610 co-relation queries the response was YES. [2022-12-13 20:52:24,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 271 events. 124/271 cut-off events. For 610/610 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1061 event pairs, 28 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 803. Up to 162 conditions per place. [2022-12-13 20:52:24,799 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 52 selfloop transitions, 26 changer transitions 5/83 dead transitions. [2022-12-13 20:52:24,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 780 flow [2022-12-13 20:52:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:52:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:52:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1984 transitions. [2022-12-13 20:52:24,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4517304189435337 [2022-12-13 20:52:24,802 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1984 transitions. [2022-12-13 20:52:24,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1984 transitions. [2022-12-13 20:52:24,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:24,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1984 transitions. [2022-12-13 20:52:24,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 165.33333333333334) internal successors, (1984), 12 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:24,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:24,807 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:24,807 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 533 flow. Second operand 12 states and 1984 transitions. [2022-12-13 20:52:24,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 780 flow [2022-12-13 20:52:24,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 749 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-12-13 20:52:24,811 INFO L231 Difference]: Finished difference. Result has 87 places, 63 transitions, 612 flow [2022-12-13 20:52:24,811 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=612, PETRI_PLACES=87, PETRI_TRANSITIONS=63} [2022-12-13 20:52:24,811 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 54 predicate places. [2022-12-13 20:52:24,811 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 63 transitions, 612 flow [2022-12-13 20:52:24,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:24,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:24,812 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:24,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:52:24,812 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:24,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:24,812 INFO L85 PathProgramCache]: Analyzing trace with hash 427691148, now seen corresponding path program 1 times [2022-12-13 20:52:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:24,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149988586] [2022-12-13 20:52:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:25,095 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 20:52:25,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:25,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149988586] [2022-12-13 20:52:25,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149988586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:25,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:25,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:52:25,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641616065] [2022-12-13 20:52:25,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:25,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:52:25,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:25,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:52:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:52:25,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 366 [2022-12-13 20:52:25,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 63 transitions, 612 flow. Second operand has 8 states, 8 states have (on average 165.25) internal successors, (1322), 8 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:25,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 366 [2022-12-13 20:52:25,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:25,535 INFO L130 PetriNetUnfolder]: 127/296 cut-off events. [2022-12-13 20:52:25,536 INFO L131 PetriNetUnfolder]: For 825/827 co-relation queries the response was YES. [2022-12-13 20:52:25,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 296 events. 127/296 cut-off events. For 825/827 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1302 event pairs, 11 based on Foata normal form. 2/291 useless extension candidates. Maximal degree in co-relation 1204. Up to 126 conditions per place. [2022-12-13 20:52:25,537 INFO L137 encePairwiseOnDemand]: 357/366 looper letters, 52 selfloop transitions, 18 changer transitions 12/91 dead transitions. [2022-12-13 20:52:25,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 91 transitions, 929 flow [2022-12-13 20:52:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:52:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:52:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1366 transitions. [2022-12-13 20:52:25,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46653005464480873 [2022-12-13 20:52:25,539 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1366 transitions. [2022-12-13 20:52:25,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1366 transitions. [2022-12-13 20:52:25,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:25,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1366 transitions. [2022-12-13 20:52:25,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.75) internal successors, (1366), 8 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 366.0) internal successors, (3294), 9 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,543 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 366.0) internal successors, (3294), 9 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,543 INFO L175 Difference]: Start difference. First operand has 87 places, 63 transitions, 612 flow. Second operand 8 states and 1366 transitions. [2022-12-13 20:52:25,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 91 transitions, 929 flow [2022-12-13 20:52:25,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 91 transitions, 903 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 20:52:25,549 INFO L231 Difference]: Finished difference. Result has 91 places, 67 transitions, 684 flow [2022-12-13 20:52:25,549 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=684, PETRI_PLACES=91, PETRI_TRANSITIONS=67} [2022-12-13 20:52:25,549 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 58 predicate places. [2022-12-13 20:52:25,550 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 67 transitions, 684 flow [2022-12-13 20:52:25,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 165.25) internal successors, (1322), 8 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:25,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:25,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:52:25,550 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash 427691235, now seen corresponding path program 1 times [2022-12-13 20:52:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:25,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141875479] [2022-12-13 20:52:25,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:25,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:25,767 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 20:52:25,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:25,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141875479] [2022-12-13 20:52:25,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141875479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:25,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:25,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:52:25,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206155880] [2022-12-13 20:52:25,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:25,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:52:25,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:25,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:52:25,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:52:25,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 366 [2022-12-13 20:52:25,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 67 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:25,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 366 [2022-12-13 20:52:25,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:25,934 INFO L130 PetriNetUnfolder]: 50/141 cut-off events. [2022-12-13 20:52:25,934 INFO L131 PetriNetUnfolder]: For 669/669 co-relation queries the response was YES. [2022-12-13 20:52:25,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 141 events. 50/141 cut-off events. For 669/669 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 496 event pairs, 11 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 622. Up to 58 conditions per place. [2022-12-13 20:52:25,935 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 36 selfloop transitions, 11 changer transitions 0/54 dead transitions. [2022-12-13 20:52:25,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 54 transitions, 591 flow [2022-12-13 20:52:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:52:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:52:25,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2022-12-13 20:52:25,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48633879781420764 [2022-12-13 20:52:25,936 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2022-12-13 20:52:25,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2022-12-13 20:52:25,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:25,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2022-12-13 20:52:25,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,939 INFO L175 Difference]: Start difference. First operand has 91 places, 67 transitions, 684 flow. Second operand 6 states and 1068 transitions. [2022-12-13 20:52:25,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 54 transitions, 591 flow [2022-12-13 20:52:25,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 54 transitions, 528 flow, removed 12 selfloop flow, removed 12 redundant places. [2022-12-13 20:52:25,942 INFO L231 Difference]: Finished difference. Result has 78 places, 49 transitions, 448 flow [2022-12-13 20:52:25,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=448, PETRI_PLACES=78, PETRI_TRANSITIONS=49} [2022-12-13 20:52:25,943 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 45 predicate places. [2022-12-13 20:52:25,943 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 49 transitions, 448 flow [2022-12-13 20:52:25,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:25,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:25,943 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:25,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:52:25,943 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:25,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:25,944 INFO L85 PathProgramCache]: Analyzing trace with hash -333025707, now seen corresponding path program 1 times [2022-12-13 20:52:25,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:25,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726363911] [2022-12-13 20:52:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:26,523 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 20:52:26,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:26,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726363911] [2022-12-13 20:52:26,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726363911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:26,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:26,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:26,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469118032] [2022-12-13 20:52:26,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:26,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:26,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:26,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:26,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:27,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:27,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 49 transitions, 448 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:27,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:27,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:27,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:27,800 INFO L130 PetriNetUnfolder]: 73/198 cut-off events. [2022-12-13 20:52:27,800 INFO L131 PetriNetUnfolder]: For 513/513 co-relation queries the response was YES. [2022-12-13 20:52:27,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 198 events. 73/198 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 783 event pairs, 13 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 694. Up to 80 conditions per place. [2022-12-13 20:52:27,801 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 45 selfloop transitions, 41 changer transitions 2/88 dead transitions. [2022-12-13 20:52:27,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 88 transitions, 781 flow [2022-12-13 20:52:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:52:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 20:52:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3273 transitions. [2022-12-13 20:52:27,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4471311475409836 [2022-12-13 20:52:27,803 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3273 transitions. [2022-12-13 20:52:27,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3273 transitions. [2022-12-13 20:52:27,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:27,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3273 transitions. [2022-12-13 20:52:27,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 163.65) internal successors, (3273), 20 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:27,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 366.0) internal successors, (7686), 21 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:27,811 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 366.0) internal successors, (7686), 21 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:27,811 INFO L175 Difference]: Start difference. First operand has 78 places, 49 transitions, 448 flow. Second operand 20 states and 3273 transitions. [2022-12-13 20:52:27,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 88 transitions, 781 flow [2022-12-13 20:52:27,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 88 transitions, 751 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 20:52:27,814 INFO L231 Difference]: Finished difference. Result has 95 places, 65 transitions, 630 flow [2022-12-13 20:52:27,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=630, PETRI_PLACES=95, PETRI_TRANSITIONS=65} [2022-12-13 20:52:27,815 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 62 predicate places. [2022-12-13 20:52:27,815 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 65 transitions, 630 flow [2022-12-13 20:52:27,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:27,815 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:27,815 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:27,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:52:27,815 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 20:52:27,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1027341131, now seen corresponding path program 1 times [2022-12-13 20:52:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:27,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156761202] [2022-12-13 20:52:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:28,458 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 20:52:28,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:28,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156761202] [2022-12-13 20:52:28,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156761202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:28,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:28,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563567346] [2022-12-13 20:52:28,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:28,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:28,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:28,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:28,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:29,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:29,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 65 transitions, 630 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:29,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:29,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:29,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:29,812 INFO L130 PetriNetUnfolder]: 71/194 cut-off events. [2022-12-13 20:52:29,812 INFO L131 PetriNetUnfolder]: For 624/624 co-relation queries the response was YES. [2022-12-13 20:52:29,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 194 events. 71/194 cut-off events. For 624/624 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 768 event pairs, 11 based on Foata normal form. 3/197 useless extension candidates. Maximal degree in co-relation 727. Up to 82 conditions per place. [2022-12-13 20:52:29,813 INFO L137 encePairwiseOnDemand]: 351/366 looper letters, 46 selfloop transitions, 42 changer transitions 1/89 dead transitions. [2022-12-13 20:52:29,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 89 transitions, 886 flow [2022-12-13 20:52:29,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:52:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 20:52:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3272 transitions. [2022-12-13 20:52:29,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44699453551912566 [2022-12-13 20:52:29,816 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3272 transitions. [2022-12-13 20:52:29,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3272 transitions. [2022-12-13 20:52:29,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:29,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3272 transitions. [2022-12-13 20:52:29,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 163.6) internal successors, (3272), 20 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:29,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 366.0) internal successors, (7686), 21 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:29,824 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 366.0) internal successors, (7686), 21 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:29,824 INFO L175 Difference]: Start difference. First operand has 95 places, 65 transitions, 630 flow. Second operand 20 states and 3272 transitions. [2022-12-13 20:52:29,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 89 transitions, 886 flow [2022-12-13 20:52:29,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 89 transitions, 758 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-12-13 20:52:29,827 INFO L231 Difference]: Finished difference. Result has 105 places, 68 transitions, 635 flow [2022-12-13 20:52:29,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=635, PETRI_PLACES=105, PETRI_TRANSITIONS=68} [2022-12-13 20:52:29,828 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 72 predicate places. [2022-12-13 20:52:29,828 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 68 transitions, 635 flow [2022-12-13 20:52:29,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:29,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:29,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:29,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:52:29,829 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 20:52:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:29,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1481355971, now seen corresponding path program 2 times [2022-12-13 20:52:29,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:29,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997081914] [2022-12-13 20:52:29,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:30,266 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 20:52:30,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:30,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997081914] [2022-12-13 20:52:30,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997081914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:30,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:30,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:52:30,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524934124] [2022-12-13 20:52:30,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:30,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:52:30,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:30,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:52:30,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:52:30,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:30,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 68 transitions, 635 flow. Second operand has 11 states, 11 states have (on average 161.0909090909091) internal successors, (1772), 11 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:30,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:30,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:30,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:31,031 INFO L130 PetriNetUnfolder]: 83/222 cut-off events. [2022-12-13 20:52:31,031 INFO L131 PetriNetUnfolder]: For 617/617 co-relation queries the response was YES. [2022-12-13 20:52:31,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 222 events. 83/222 cut-off events. For 617/617 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 926 event pairs, 11 based on Foata normal form. 3/225 useless extension candidates. Maximal degree in co-relation 943. Up to 76 conditions per place. [2022-12-13 20:52:31,034 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 43 selfloop transitions, 47 changer transitions 2/92 dead transitions. [2022-12-13 20:52:31,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 92 transitions, 920 flow [2022-12-13 20:52:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:52:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:52:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2945 transitions. [2022-12-13 20:52:31,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44702489374620524 [2022-12-13 20:52:31,037 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2945 transitions. [2022-12-13 20:52:31,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2945 transitions. [2022-12-13 20:52:31,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:31,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2945 transitions. [2022-12-13 20:52:31,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 163.61111111111111) internal successors, (2945), 18 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:31,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 366.0) internal successors, (6954), 19 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:31,043 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 366.0) internal successors, (6954), 19 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:31,043 INFO L175 Difference]: Start difference. First operand has 105 places, 68 transitions, 635 flow. Second operand 18 states and 2945 transitions. [2022-12-13 20:52:31,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 92 transitions, 920 flow [2022-12-13 20:52:31,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 92 transitions, 839 flow, removed 3 selfloop flow, removed 18 redundant places. [2022-12-13 20:52:31,046 INFO L231 Difference]: Finished difference. Result has 108 places, 74 transitions, 740 flow [2022-12-13 20:52:31,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=740, PETRI_PLACES=108, PETRI_TRANSITIONS=74} [2022-12-13 20:52:31,047 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 75 predicate places. [2022-12-13 20:52:31,047 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 74 transitions, 740 flow [2022-12-13 20:52:31,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 161.0909090909091) internal successors, (1772), 11 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:31,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:31,047 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:31,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:52:31,047 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:31,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1481355947, now seen corresponding path program 2 times [2022-12-13 20:52:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:31,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062730523] [2022-12-13 20:52:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:31,579 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 20:52:31,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062730523] [2022-12-13 20:52:31,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062730523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:31,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:31,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:31,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778921521] [2022-12-13 20:52:31,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:31,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:31,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:31,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:31,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:32,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:32,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 74 transitions, 740 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:32,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:32,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:32,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:32,552 INFO L130 PetriNetUnfolder]: 92/243 cut-off events. [2022-12-13 20:52:32,552 INFO L131 PetriNetUnfolder]: For 836/836 co-relation queries the response was YES. [2022-12-13 20:52:32,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 243 events. 92/243 cut-off events. For 836/836 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1033 event pairs, 15 based on Foata normal form. 3/246 useless extension candidates. Maximal degree in co-relation 1071. Up to 83 conditions per place. [2022-12-13 20:52:32,553 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 50 selfloop transitions, 51 changer transitions 2/103 dead transitions. [2022-12-13 20:52:32,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 103 transitions, 1071 flow [2022-12-13 20:52:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:52:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:52:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2954 transitions. [2022-12-13 20:52:32,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4483910139647845 [2022-12-13 20:52:32,556 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2954 transitions. [2022-12-13 20:52:32,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2954 transitions. [2022-12-13 20:52:32,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:32,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2954 transitions. [2022-12-13 20:52:32,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 164.11111111111111) internal successors, (2954), 18 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:32,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 366.0) internal successors, (6954), 19 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:32,561 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 366.0) internal successors, (6954), 19 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:32,562 INFO L175 Difference]: Start difference. First operand has 108 places, 74 transitions, 740 flow. Second operand 18 states and 2954 transitions. [2022-12-13 20:52:32,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 103 transitions, 1071 flow [2022-12-13 20:52:32,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 103 transitions, 991 flow, removed 16 selfloop flow, removed 11 redundant places. [2022-12-13 20:52:32,566 INFO L231 Difference]: Finished difference. Result has 116 places, 81 transitions, 845 flow [2022-12-13 20:52:32,566 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=845, PETRI_PLACES=116, PETRI_TRANSITIONS=81} [2022-12-13 20:52:32,566 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 83 predicate places. [2022-12-13 20:52:32,566 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 81 transitions, 845 flow [2022-12-13 20:52:32,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:32,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:32,567 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:32,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:52:32,567 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 20:52:32,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1546463853, now seen corresponding path program 3 times [2022-12-13 20:52:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:32,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475347488] [2022-12-13 20:52:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:32,993 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 20:52:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:32,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475347488] [2022-12-13 20:52:32,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475347488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:32,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:32,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:52:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375291528] [2022-12-13 20:52:32,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:32,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:52:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:32,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:52:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:52:33,446 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:33,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 81 transitions, 845 flow. Second operand has 11 states, 11 states have (on average 161.0909090909091) internal successors, (1772), 11 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:33,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:33,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:33,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:33,804 INFO L130 PetriNetUnfolder]: 90/236 cut-off events. [2022-12-13 20:52:33,804 INFO L131 PetriNetUnfolder]: For 790/790 co-relation queries the response was YES. [2022-12-13 20:52:33,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 236 events. 90/236 cut-off events. For 790/790 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 994 event pairs, 3 based on Foata normal form. 3/239 useless extension candidates. Maximal degree in co-relation 949. Up to 70 conditions per place. [2022-12-13 20:52:33,805 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 40 selfloop transitions, 55 changer transitions 2/97 dead transitions. [2022-12-13 20:52:33,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 97 transitions, 1104 flow [2022-12-13 20:52:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:52:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:52:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2776 transitions. [2022-12-13 20:52:33,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4461587913854066 [2022-12-13 20:52:33,808 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2776 transitions. [2022-12-13 20:52:33,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2776 transitions. [2022-12-13 20:52:33,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:33,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2776 transitions. [2022-12-13 20:52:33,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 163.2941176470588) internal successors, (2776), 17 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:33,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 366.0) internal successors, (6588), 18 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:33,814 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 366.0) internal successors, (6588), 18 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:33,814 INFO L175 Difference]: Start difference. First operand has 116 places, 81 transitions, 845 flow. Second operand 17 states and 2776 transitions. [2022-12-13 20:52:33,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 97 transitions, 1104 flow [2022-12-13 20:52:33,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 97 transitions, 998 flow, removed 14 selfloop flow, removed 12 redundant places. [2022-12-13 20:52:33,818 INFO L231 Difference]: Finished difference. Result has 123 places, 83 transitions, 927 flow [2022-12-13 20:52:33,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=927, PETRI_PLACES=123, PETRI_TRANSITIONS=83} [2022-12-13 20:52:33,819 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 90 predicate places. [2022-12-13 20:52:33,819 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 83 transitions, 927 flow [2022-12-13 20:52:33,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 161.0909090909091) internal successors, (1772), 11 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:33,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:33,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:33,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 20:52:33,819 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:33,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash 992351229, now seen corresponding path program 3 times [2022-12-13 20:52:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:33,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423286680] [2022-12-13 20:52:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:34,277 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 20:52:34,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:34,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423286680] [2022-12-13 20:52:34,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423286680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:34,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:34,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:34,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538895059] [2022-12-13 20:52:34,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:34,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:34,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:34,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:34,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:34,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:34,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 83 transitions, 927 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:34,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:34,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:34,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:35,096 INFO L130 PetriNetUnfolder]: 87/230 cut-off events. [2022-12-13 20:52:35,096 INFO L131 PetriNetUnfolder]: For 984/984 co-relation queries the response was YES. [2022-12-13 20:52:35,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 230 events. 87/230 cut-off events. For 984/984 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 971 event pairs, 9 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 1012. Up to 50 conditions per place. [2022-12-13 20:52:35,097 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 43 selfloop transitions, 57 changer transitions 2/102 dead transitions. [2022-12-13 20:52:35,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 102 transitions, 1171 flow [2022-12-13 20:52:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:52:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:52:35,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2947 transitions. [2022-12-13 20:52:35,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4473284760170006 [2022-12-13 20:52:35,100 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2947 transitions. [2022-12-13 20:52:35,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2947 transitions. [2022-12-13 20:52:35,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:35,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2947 transitions. [2022-12-13 20:52:35,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 163.72222222222223) internal successors, (2947), 18 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:35,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 366.0) internal successors, (6954), 19 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:35,106 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 366.0) internal successors, (6954), 19 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:35,106 INFO L175 Difference]: Start difference. First operand has 123 places, 83 transitions, 927 flow. Second operand 18 states and 2947 transitions. [2022-12-13 20:52:35,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 102 transitions, 1171 flow [2022-12-13 20:52:35,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 102 transitions, 1047 flow, removed 7 selfloop flow, removed 14 redundant places. [2022-12-13 20:52:35,110 INFO L231 Difference]: Finished difference. Result has 127 places, 83 transitions, 917 flow [2022-12-13 20:52:35,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=917, PETRI_PLACES=127, PETRI_TRANSITIONS=83} [2022-12-13 20:52:35,111 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 94 predicate places. [2022-12-13 20:52:35,111 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 83 transitions, 917 flow [2022-12-13 20:52:35,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:35,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:35,111 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:35,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 20:52:35,111 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 20:52:35,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:35,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1888594221, now seen corresponding path program 4 times [2022-12-13 20:52:35,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:35,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856021175] [2022-12-13 20:52:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:35,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:35,611 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 20:52:35,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:35,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856021175] [2022-12-13 20:52:35,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856021175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:35,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:35,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:35,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147191753] [2022-12-13 20:52:35,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:35,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:35,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:35,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:36,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:36,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 83 transitions, 917 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:36,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:36,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:36,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:36,569 INFO L130 PetriNetUnfolder]: 97/254 cut-off events. [2022-12-13 20:52:36,570 INFO L131 PetriNetUnfolder]: For 1063/1063 co-relation queries the response was YES. [2022-12-13 20:52:36,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 254 events. 97/254 cut-off events. For 1063/1063 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1110 event pairs, 23 based on Foata normal form. 3/257 useless extension candidates. Maximal degree in co-relation 1133. Up to 164 conditions per place. [2022-12-13 20:52:36,572 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 69 selfloop transitions, 33 changer transitions 1/103 dead transitions. [2022-12-13 20:52:36,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 103 transitions, 1238 flow [2022-12-13 20:52:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:52:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:52:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2459 transitions. [2022-12-13 20:52:36,574 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44790528233151183 [2022-12-13 20:52:36,574 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2459 transitions. [2022-12-13 20:52:36,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2459 transitions. [2022-12-13 20:52:36,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:36,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2459 transitions. [2022-12-13 20:52:36,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 163.93333333333334) internal successors, (2459), 15 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:36,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:36,579 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:36,579 INFO L175 Difference]: Start difference. First operand has 127 places, 83 transitions, 917 flow. Second operand 15 states and 2459 transitions. [2022-12-13 20:52:36,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 103 transitions, 1238 flow [2022-12-13 20:52:36,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 103 transitions, 1110 flow, removed 5 selfloop flow, removed 14 redundant places. [2022-12-13 20:52:36,584 INFO L231 Difference]: Finished difference. Result has 131 places, 89 transitions, 965 flow [2022-12-13 20:52:36,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=965, PETRI_PLACES=131, PETRI_TRANSITIONS=89} [2022-12-13 20:52:36,584 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 98 predicate places. [2022-12-13 20:52:36,584 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 89 transitions, 965 flow [2022-12-13 20:52:36,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:36,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:36,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:36,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 20:52:36,585 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 20:52:36,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash 413979319, now seen corresponding path program 5 times [2022-12-13 20:52:36,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:36,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408850390] [2022-12-13 20:52:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:37,084 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 20:52:37,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:37,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408850390] [2022-12-13 20:52:37,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408850390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:37,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:37,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:37,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666254833] [2022-12-13 20:52:37,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:37,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:37,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:37,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:37,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:37,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 89 transitions, 965 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:37,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:37,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:37,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:38,052 INFO L130 PetriNetUnfolder]: 106/275 cut-off events. [2022-12-13 20:52:38,052 INFO L131 PetriNetUnfolder]: For 1128/1128 co-relation queries the response was YES. [2022-12-13 20:52:38,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 275 events. 106/275 cut-off events. For 1128/1128 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1240 event pairs, 25 based on Foata normal form. 3/278 useless extension candidates. Maximal degree in co-relation 1222. Up to 161 conditions per place. [2022-12-13 20:52:38,053 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 70 selfloop transitions, 38 changer transitions 1/109 dead transitions. [2022-12-13 20:52:38,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 109 transitions, 1286 flow [2022-12-13 20:52:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:52:38,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:52:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2459 transitions. [2022-12-13 20:52:38,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44790528233151183 [2022-12-13 20:52:38,056 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2459 transitions. [2022-12-13 20:52:38,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2459 transitions. [2022-12-13 20:52:38,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:38,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2459 transitions. [2022-12-13 20:52:38,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 163.93333333333334) internal successors, (2459), 15 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:38,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:38,060 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:38,060 INFO L175 Difference]: Start difference. First operand has 131 places, 89 transitions, 965 flow. Second operand 15 states and 2459 transitions. [2022-12-13 20:52:38,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 109 transitions, 1286 flow [2022-12-13 20:52:38,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 109 transitions, 1222 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-12-13 20:52:38,066 INFO L231 Difference]: Finished difference. Result has 140 places, 95 transitions, 1088 flow [2022-12-13 20:52:38,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1088, PETRI_PLACES=140, PETRI_TRANSITIONS=95} [2022-12-13 20:52:38,066 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 107 predicate places. [2022-12-13 20:52:38,066 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 95 transitions, 1088 flow [2022-12-13 20:52:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:38,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:38,067 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:38,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 20:52:38,067 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1122456813, now seen corresponding path program 6 times [2022-12-13 20:52:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:38,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565072301] [2022-12-13 20:52:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:38,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:38,535 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 20:52:38,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:38,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565072301] [2022-12-13 20:52:38,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565072301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:38,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:38,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:38,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128363887] [2022-12-13 20:52:38,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:38,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:38,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:39,011 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:39,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 95 transitions, 1088 flow. Second operand has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:39,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:39,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:39,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:39,461 INFO L130 PetriNetUnfolder]: 104/268 cut-off events. [2022-12-13 20:52:39,461 INFO L131 PetriNetUnfolder]: For 1261/1261 co-relation queries the response was YES. [2022-12-13 20:52:39,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1413 conditions, 268 events. 104/268 cut-off events. For 1261/1261 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1197 event pairs, 37 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 1295. Up to 202 conditions per place. [2022-12-13 20:52:39,464 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 81 selfloop transitions, 26 changer transitions 1/108 dead transitions. [2022-12-13 20:52:39,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 108 transitions, 1310 flow [2022-12-13 20:52:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:52:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:52:39,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2457 transitions. [2022-12-13 20:52:39,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44754098360655736 [2022-12-13 20:52:39,466 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2457 transitions. [2022-12-13 20:52:39,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2457 transitions. [2022-12-13 20:52:39,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:39,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2457 transitions. [2022-12-13 20:52:39,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 163.8) internal successors, (2457), 15 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:39,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:39,471 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:39,471 INFO L175 Difference]: Start difference. First operand has 140 places, 95 transitions, 1088 flow. Second operand 15 states and 2457 transitions. [2022-12-13 20:52:39,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 108 transitions, 1310 flow [2022-12-13 20:52:39,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 108 transitions, 1191 flow, removed 12 selfloop flow, removed 12 redundant places. [2022-12-13 20:52:39,477 INFO L231 Difference]: Finished difference. Result has 142 places, 93 transitions, 993 flow [2022-12-13 20:52:39,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=993, PETRI_PLACES=142, PETRI_TRANSITIONS=93} [2022-12-13 20:52:39,477 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 109 predicate places. [2022-12-13 20:52:39,477 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 93 transitions, 993 flow [2022-12-13 20:52:39,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:39,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:39,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:39,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 20:52:39,477 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 20:52:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash 263682237, now seen corresponding path program 1 times [2022-12-13 20:52:39,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:39,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150201003] [2022-12-13 20:52:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:39,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:39,933 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 20:52:39,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:39,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150201003] [2022-12-13 20:52:39,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150201003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:39,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:39,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:52:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235455519] [2022-12-13 20:52:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:39,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:52:39,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:39,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:52:39,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:52:40,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 366 [2022-12-13 20:52:40,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 93 transitions, 993 flow. Second operand has 11 states, 11 states have (on average 159.0909090909091) internal successors, (1750), 11 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:40,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:40,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 366 [2022-12-13 20:52:40,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:40,634 INFO L130 PetriNetUnfolder]: 103/265 cut-off events. [2022-12-13 20:52:40,634 INFO L131 PetriNetUnfolder]: For 945/945 co-relation queries the response was YES. [2022-12-13 20:52:40,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 265 events. 103/265 cut-off events. For 945/945 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1172 event pairs, 42 based on Foata normal form. 2/267 useless extension candidates. Maximal degree in co-relation 1282. Up to 227 conditions per place. [2022-12-13 20:52:40,635 INFO L137 encePairwiseOnDemand]: 357/366 looper letters, 82 selfloop transitions, 15 changer transitions 1/98 dead transitions. [2022-12-13 20:52:40,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 98 transitions, 1198 flow [2022-12-13 20:52:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:52:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 20:52:40,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1458 transitions. [2022-12-13 20:52:40,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4426229508196721 [2022-12-13 20:52:40,637 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1458 transitions. [2022-12-13 20:52:40,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1458 transitions. [2022-12-13 20:52:40,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:40,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1458 transitions. [2022-12-13 20:52:40,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:40,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 366.0) internal successors, (3660), 10 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:40,640 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 366.0) internal successors, (3660), 10 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:40,641 INFO L175 Difference]: Start difference. First operand has 142 places, 93 transitions, 993 flow. Second operand 9 states and 1458 transitions. [2022-12-13 20:52:40,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 98 transitions, 1198 flow [2022-12-13 20:52:40,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 98 transitions, 1029 flow, removed 12 selfloop flow, removed 20 redundant places. [2022-12-13 20:52:40,648 INFO L231 Difference]: Finished difference. Result has 129 places, 92 transitions, 850 flow [2022-12-13 20:52:40,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=850, PETRI_PLACES=129, PETRI_TRANSITIONS=92} [2022-12-13 20:52:40,648 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 96 predicate places. [2022-12-13 20:52:40,648 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 92 transitions, 850 flow [2022-12-13 20:52:40,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 159.0909090909091) internal successors, (1750), 11 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:40,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:40,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:40,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 20:52:40,649 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:40,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:40,649 INFO L85 PathProgramCache]: Analyzing trace with hash 263682324, now seen corresponding path program 1 times [2022-12-13 20:52:40,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:40,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924386343] [2022-12-13 20:52:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:40,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:41,125 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 20:52:41,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924386343] [2022-12-13 20:52:41,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924386343] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:41,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:41,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:52:41,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537265651] [2022-12-13 20:52:41,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:41,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:52:41,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:41,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:52:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:52:41,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 366 [2022-12-13 20:52:41,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 92 transitions, 850 flow. Second operand has 11 states, 11 states have (on average 161.0909090909091) internal successors, (1772), 11 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:41,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:41,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 366 [2022-12-13 20:52:41,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:41,850 INFO L130 PetriNetUnfolder]: 88/236 cut-off events. [2022-12-13 20:52:41,850 INFO L131 PetriNetUnfolder]: For 549/549 co-relation queries the response was YES. [2022-12-13 20:52:41,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 236 events. 88/236 cut-off events. For 549/549 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1044 event pairs, 24 based on Foata normal form. 2/238 useless extension candidates. Maximal degree in co-relation 1000. Up to 153 conditions per place. [2022-12-13 20:52:41,851 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 70 selfloop transitions, 29 changer transitions 11/110 dead transitions. [2022-12-13 20:52:41,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 110 transitions, 1160 flow [2022-12-13 20:52:41,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:52:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:52:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1969 transitions. [2022-12-13 20:52:41,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4483151183970856 [2022-12-13 20:52:41,853 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1969 transitions. [2022-12-13 20:52:41,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1969 transitions. [2022-12-13 20:52:41,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:41,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1969 transitions. [2022-12-13 20:52:41,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 164.08333333333334) internal successors, (1969), 12 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:41,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:41,857 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:41,857 INFO L175 Difference]: Start difference. First operand has 129 places, 92 transitions, 850 flow. Second operand 12 states and 1969 transitions. [2022-12-13 20:52:41,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 110 transitions, 1160 flow [2022-12-13 20:52:41,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 110 transitions, 1094 flow, removed 1 selfloop flow, removed 10 redundant places. [2022-12-13 20:52:41,862 INFO L231 Difference]: Finished difference. Result has 128 places, 91 transitions, 847 flow [2022-12-13 20:52:41,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=847, PETRI_PLACES=128, PETRI_TRANSITIONS=91} [2022-12-13 20:52:41,862 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 95 predicate places. [2022-12-13 20:52:41,862 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 91 transitions, 847 flow [2022-12-13 20:52:41,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 161.0909090909091) internal successors, (1772), 11 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:41,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:41,863 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:41,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 20:52:41,863 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 20:52:41,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:41,863 INFO L85 PathProgramCache]: Analyzing trace with hash 864711295, now seen corresponding path program 1 times [2022-12-13 20:52:41,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:41,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067763664] [2022-12-13 20:52:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:41,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:42,671 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 20:52:42,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:42,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067763664] [2022-12-13 20:52:42,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067763664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:42,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:42,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:52:42,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653696598] [2022-12-13 20:52:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:42,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:52:42,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:52:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:52:43,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 366 [2022-12-13 20:52:43,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 91 transitions, 847 flow. Second operand has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:43,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:43,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 366 [2022-12-13 20:52:43,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:43,833 INFO L130 PetriNetUnfolder]: 91/254 cut-off events. [2022-12-13 20:52:43,833 INFO L131 PetriNetUnfolder]: For 676/676 co-relation queries the response was YES. [2022-12-13 20:52:43,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 254 events. 91/254 cut-off events. For 676/676 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1171 event pairs, 22 based on Foata normal form. 2/256 useless extension candidates. Maximal degree in co-relation 1162. Up to 140 conditions per place. [2022-12-13 20:52:43,835 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 78 selfloop transitions, 45 changer transitions 0/123 dead transitions. [2022-12-13 20:52:43,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 123 transitions, 1353 flow [2022-12-13 20:52:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:52:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:52:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2145 transitions. [2022-12-13 20:52:43,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41861826697892274 [2022-12-13 20:52:43,837 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2145 transitions. [2022-12-13 20:52:43,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2145 transitions. [2022-12-13 20:52:43,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:43,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2145 transitions. [2022-12-13 20:52:43,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 153.21428571428572) internal successors, (2145), 14 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:43,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:43,841 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:43,841 INFO L175 Difference]: Start difference. First operand has 128 places, 91 transitions, 847 flow. Second operand 14 states and 2145 transitions. [2022-12-13 20:52:43,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 123 transitions, 1353 flow [2022-12-13 20:52:43,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 123 transitions, 1165 flow, removed 22 selfloop flow, removed 12 redundant places. [2022-12-13 20:52:43,845 INFO L231 Difference]: Finished difference. Result has 123 places, 106 transitions, 965 flow [2022-12-13 20:52:43,846 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=965, PETRI_PLACES=123, PETRI_TRANSITIONS=106} [2022-12-13 20:52:43,846 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 90 predicate places. [2022-12-13 20:52:43,850 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 106 transitions, 965 flow [2022-12-13 20:52:43,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:43,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:43,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:43,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 20:52:43,851 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:43,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:43,851 INFO L85 PathProgramCache]: Analyzing trace with hash 446265623, now seen corresponding path program 1 times [2022-12-13 20:52:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:43,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993732388] [2022-12-13 20:52:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:43,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,630 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 20:52:44,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:44,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993732388] [2022-12-13 20:52:44,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993732388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:44,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:44,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:44,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305980159] [2022-12-13 20:52:44,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:44,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:52:44,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:44,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:52:44,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:52:45,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:52:45,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 106 transitions, 965 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:45,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:45,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:52:45,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:46,536 INFO L130 PetriNetUnfolder]: 97/275 cut-off events. [2022-12-13 20:52:46,536 INFO L131 PetriNetUnfolder]: For 802/802 co-relation queries the response was YES. [2022-12-13 20:52:46,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 275 events. 97/275 cut-off events. For 802/802 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1329 event pairs, 23 based on Foata normal form. 2/277 useless extension candidates. Maximal degree in co-relation 1243. Up to 153 conditions per place. [2022-12-13 20:52:46,538 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 77 selfloop transitions, 58 changer transitions 0/135 dead transitions. [2022-12-13 20:52:46,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 135 transitions, 1404 flow [2022-12-13 20:52:46,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:52:46,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:52:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2482 transitions. [2022-12-13 20:52:46,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42383879781420764 [2022-12-13 20:52:46,540 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2482 transitions. [2022-12-13 20:52:46,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2482 transitions. [2022-12-13 20:52:46,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:46,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2482 transitions. [2022-12-13 20:52:46,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 155.125) internal successors, (2482), 16 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:46,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:46,545 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:46,545 INFO L175 Difference]: Start difference. First operand has 123 places, 106 transitions, 965 flow. Second operand 16 states and 2482 transitions. [2022-12-13 20:52:46,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 135 transitions, 1404 flow [2022-12-13 20:52:46,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 135 transitions, 1332 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 20:52:46,549 INFO L231 Difference]: Finished difference. Result has 138 places, 120 transitions, 1165 flow [2022-12-13 20:52:46,549 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1165, PETRI_PLACES=138, PETRI_TRANSITIONS=120} [2022-12-13 20:52:46,550 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 105 predicate places. [2022-12-13 20:52:46,550 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 120 transitions, 1165 flow [2022-12-13 20:52:46,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:46,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:46,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:46,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 20:52:46,550 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:46,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:46,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1071395489, now seen corresponding path program 2 times [2022-12-13 20:52:46,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:46,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068785880] [2022-12-13 20:52:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:47,296 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 20:52:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:47,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068785880] [2022-12-13 20:52:47,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068785880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:47,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:47,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:47,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938817090] [2022-12-13 20:52:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:47,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:52:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:52:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:52:48,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:52:48,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 120 transitions, 1165 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:48,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:48,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:52:48,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:49,390 INFO L130 PetriNetUnfolder]: 103/301 cut-off events. [2022-12-13 20:52:49,391 INFO L131 PetriNetUnfolder]: For 1193/1193 co-relation queries the response was YES. [2022-12-13 20:52:49,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 301 events. 103/301 cut-off events. For 1193/1193 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1510 event pairs, 16 based on Foata normal form. 2/303 useless extension candidates. Maximal degree in co-relation 1524. Up to 72 conditions per place. [2022-12-13 20:52:49,392 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 64 selfloop transitions, 105 changer transitions 0/169 dead transitions. [2022-12-13 20:52:49,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 169 transitions, 1889 flow [2022-12-13 20:52:49,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 20:52:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-13 20:52:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4183 transitions. [2022-12-13 20:52:49,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42329487957903256 [2022-12-13 20:52:49,395 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4183 transitions. [2022-12-13 20:52:49,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4183 transitions. [2022-12-13 20:52:49,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:49,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4183 transitions. [2022-12-13 20:52:49,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 154.92592592592592) internal successors, (4183), 27 states have internal predecessors, (4183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:49,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 366.0) internal successors, (10248), 28 states have internal predecessors, (10248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:49,403 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 366.0) internal successors, (10248), 28 states have internal predecessors, (10248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:49,403 INFO L175 Difference]: Start difference. First operand has 138 places, 120 transitions, 1165 flow. Second operand 27 states and 4183 transitions. [2022-12-13 20:52:49,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 169 transitions, 1889 flow [2022-12-13 20:52:49,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 169 transitions, 1771 flow, removed 14 selfloop flow, removed 6 redundant places. [2022-12-13 20:52:49,409 INFO L231 Difference]: Finished difference. Result has 163 places, 150 transitions, 1600 flow [2022-12-13 20:52:49,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1600, PETRI_PLACES=163, PETRI_TRANSITIONS=150} [2022-12-13 20:52:49,410 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 130 predicate places. [2022-12-13 20:52:49,410 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 150 transitions, 1600 flow [2022-12-13 20:52:49,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:49,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:49,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:49,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 20:52:49,410 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:49,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:49,411 INFO L85 PathProgramCache]: Analyzing trace with hash 367312153, now seen corresponding path program 3 times [2022-12-13 20:52:49,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:49,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331868576] [2022-12-13 20:52:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:49,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:49,824 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 20:52:49,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:49,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331868576] [2022-12-13 20:52:49,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331868576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:49,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:49,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:52:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389334586] [2022-12-13 20:52:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:49,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:49,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:49,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:50,507 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 366 [2022-12-13 20:52:50,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 150 transitions, 1600 flow. Second operand has 12 states, 12 states have (on average 157.16666666666666) internal successors, (1886), 12 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:50,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:50,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 366 [2022-12-13 20:52:50,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:51,028 INFO L130 PetriNetUnfolder]: 106/321 cut-off events. [2022-12-13 20:52:51,028 INFO L131 PetriNetUnfolder]: For 1446/1455 co-relation queries the response was YES. [2022-12-13 20:52:51,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 321 events. 106/321 cut-off events. For 1446/1455 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1678 event pairs, 22 based on Foata normal form. 3/324 useless extension candidates. Maximal degree in co-relation 1801. Up to 182 conditions per place. [2022-12-13 20:52:51,030 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 114 selfloop transitions, 58 changer transitions 0/178 dead transitions. [2022-12-13 20:52:51,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 178 transitions, 2172 flow [2022-12-13 20:52:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:52:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:52:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2394 transitions. [2022-12-13 20:52:51,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4360655737704918 [2022-12-13 20:52:51,032 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2394 transitions. [2022-12-13 20:52:51,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2394 transitions. [2022-12-13 20:52:51,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:51,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2394 transitions. [2022-12-13 20:52:51,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 159.6) internal successors, (2394), 15 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:51,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:51,037 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:51,037 INFO L175 Difference]: Start difference. First operand has 163 places, 150 transitions, 1600 flow. Second operand 15 states and 2394 transitions. [2022-12-13 20:52:51,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 178 transitions, 2172 flow [2022-12-13 20:52:51,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 178 transitions, 2030 flow, removed 57 selfloop flow, removed 6 redundant places. [2022-12-13 20:52:51,046 INFO L231 Difference]: Finished difference. Result has 176 places, 163 transitions, 1770 flow [2022-12-13 20:52:51,046 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1482, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1770, PETRI_PLACES=176, PETRI_TRANSITIONS=163} [2022-12-13 20:52:51,046 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 143 predicate places. [2022-12-13 20:52:51,046 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 163 transitions, 1770 flow [2022-12-13 20:52:51,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 157.16666666666666) internal successors, (1886), 12 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:51,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:51,047 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:51,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 20:52:51,047 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 20:52:51,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:51,047 INFO L85 PathProgramCache]: Analyzing trace with hash 248446087, now seen corresponding path program 2 times [2022-12-13 20:52:51,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:51,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334644229] [2022-12-13 20:52:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:51,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:51,713 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 20:52:51,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:51,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334644229] [2022-12-13 20:52:51,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334644229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:51,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:51,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:51,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485899168] [2022-12-13 20:52:51,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:51,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:52:51,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:51,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:52:51,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:52:52,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:52:52,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 163 transitions, 1770 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:52,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:52,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:52:52,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:54,322 INFO L130 PetriNetUnfolder]: 108/324 cut-off events. [2022-12-13 20:52:54,322 INFO L131 PetriNetUnfolder]: For 1398/1398 co-relation queries the response was YES. [2022-12-13 20:52:54,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 324 events. 108/324 cut-off events. For 1398/1398 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1685 event pairs, 22 based on Foata normal form. 2/326 useless extension candidates. Maximal degree in co-relation 1787. Up to 162 conditions per place. [2022-12-13 20:52:54,324 INFO L137 encePairwiseOnDemand]: 351/366 looper letters, 86 selfloop transitions, 88 changer transitions 10/184 dead transitions. [2022-12-13 20:52:54,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 184 transitions, 2242 flow [2022-12-13 20:52:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 20:52:54,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-13 20:52:54,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4947 transitions. [2022-12-13 20:52:54,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4223872950819672 [2022-12-13 20:52:54,330 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4947 transitions. [2022-12-13 20:52:54,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4947 transitions. [2022-12-13 20:52:54,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:54,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4947 transitions. [2022-12-13 20:52:54,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 154.59375) internal successors, (4947), 32 states have internal predecessors, (4947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:54,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 366.0) internal successors, (12078), 33 states have internal predecessors, (12078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:54,345 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 366.0) internal successors, (12078), 33 states have internal predecessors, (12078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:54,345 INFO L175 Difference]: Start difference. First operand has 176 places, 163 transitions, 1770 flow. Second operand 32 states and 4947 transitions. [2022-12-13 20:52:54,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 184 transitions, 2242 flow [2022-12-13 20:52:54,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 184 transitions, 2169 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-12-13 20:52:54,354 INFO L231 Difference]: Finished difference. Result has 203 places, 161 transitions, 1851 flow [2022-12-13 20:52:54,354 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1851, PETRI_PLACES=203, PETRI_TRANSITIONS=161} [2022-12-13 20:52:54,354 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 170 predicate places. [2022-12-13 20:52:54,354 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 161 transitions, 1851 flow [2022-12-13 20:52:54,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:54,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:54,355 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:54,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 20:52:54,355 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:54,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:54,356 INFO L85 PathProgramCache]: Analyzing trace with hash -414874553, now seen corresponding path program 3 times [2022-12-13 20:52:54,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:54,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961894639] [2022-12-13 20:52:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:54,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:55,098 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 20:52:55,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:55,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961894639] [2022-12-13 20:52:55,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961894639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:55,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:55,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:55,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46824696] [2022-12-13 20:52:55,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:55,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:52:55,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:55,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:52:55,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:52:55,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:52:55,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 161 transitions, 1851 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:55,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:55,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:52:55,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:56,814 INFO L130 PetriNetUnfolder]: 100/301 cut-off events. [2022-12-13 20:52:56,814 INFO L131 PetriNetUnfolder]: For 1323/1323 co-relation queries the response was YES. [2022-12-13 20:52:56,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 301 events. 100/301 cut-off events. For 1323/1323 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1534 event pairs, 21 based on Foata normal form. 2/303 useless extension candidates. Maximal degree in co-relation 1764. Up to 172 conditions per place. [2022-12-13 20:52:56,816 INFO L137 encePairwiseOnDemand]: 351/366 looper letters, 89 selfloop transitions, 80 changer transitions 0/169 dead transitions. [2022-12-13 20:52:56,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 169 transitions, 2199 flow [2022-12-13 20:52:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 20:52:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 20:52:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3256 transitions. [2022-12-13 20:52:56,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42362737444704657 [2022-12-13 20:52:56,819 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3256 transitions. [2022-12-13 20:52:56,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3256 transitions. [2022-12-13 20:52:56,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:56,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3256 transitions. [2022-12-13 20:52:56,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 155.04761904761904) internal successors, (3256), 21 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:56,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 366.0) internal successors, (8052), 22 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:56,828 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 366.0) internal successors, (8052), 22 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:56,828 INFO L175 Difference]: Start difference. First operand has 203 places, 161 transitions, 1851 flow. Second operand 21 states and 3256 transitions. [2022-12-13 20:52:56,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 169 transitions, 2199 flow [2022-12-13 20:52:56,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 169 transitions, 1959 flow, removed 14 selfloop flow, removed 27 redundant places. [2022-12-13 20:52:56,837 INFO L231 Difference]: Finished difference. Result has 194 places, 160 transitions, 1753 flow [2022-12-13 20:52:56,837 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1593, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1753, PETRI_PLACES=194, PETRI_TRANSITIONS=160} [2022-12-13 20:52:56,837 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 161 predicate places. [2022-12-13 20:52:56,837 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 160 transitions, 1753 flow [2022-12-13 20:52:56,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:56,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:56,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:56,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 20:52:56,838 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 20:52:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash 289208759, now seen corresponding path program 4 times [2022-12-13 20:52:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:56,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314038198] [2022-12-13 20:52:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:56,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:57,474 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 20:52:57,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:57,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314038198] [2022-12-13 20:52:57,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314038198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:57,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:57,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:57,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223045261] [2022-12-13 20:52:57,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:57,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:52:57,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:52:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:52:58,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:52:58,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 160 transitions, 1753 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:58,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:52:58,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:52:58,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:52:59,088 INFO L130 PetriNetUnfolder]: 99/298 cut-off events. [2022-12-13 20:52:59,088 INFO L131 PetriNetUnfolder]: For 1187/1187 co-relation queries the response was YES. [2022-12-13 20:52:59,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 298 events. 99/298 cut-off events. For 1187/1187 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1515 event pairs, 15 based on Foata normal form. 2/300 useless extension candidates. Maximal degree in co-relation 1682. Up to 88 conditions per place. [2022-12-13 20:52:59,090 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 72 selfloop transitions, 99 changer transitions 0/171 dead transitions. [2022-12-13 20:52:59,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 171 transitions, 2129 flow [2022-12-13 20:52:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:52:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:52:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2954 transitions. [2022-12-13 20:52:59,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4247914869140063 [2022-12-13 20:52:59,092 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2954 transitions. [2022-12-13 20:52:59,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2954 transitions. [2022-12-13 20:52:59,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:52:59,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2954 transitions. [2022-12-13 20:52:59,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 155.47368421052633) internal successors, (2954), 19 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:59,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:59,097 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:59,097 INFO L175 Difference]: Start difference. First operand has 194 places, 160 transitions, 1753 flow. Second operand 19 states and 2954 transitions. [2022-12-13 20:52:59,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 171 transitions, 2129 flow [2022-12-13 20:52:59,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 171 transitions, 1991 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-12-13 20:52:59,105 INFO L231 Difference]: Finished difference. Result has 197 places, 160 transitions, 1818 flow [2022-12-13 20:52:59,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1615, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1818, PETRI_PLACES=197, PETRI_TRANSITIONS=160} [2022-12-13 20:52:59,106 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 164 predicate places. [2022-12-13 20:52:59,106 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 160 transitions, 1818 flow [2022-12-13 20:52:59,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:52:59,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:52:59,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:59,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 20:52:59,106 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:52:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:59,107 INFO L85 PathProgramCache]: Analyzing trace with hash 289208783, now seen corresponding path program 4 times [2022-12-13 20:52:59,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:59,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243524101] [2022-12-13 20:52:59,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:59,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:59,759 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 20:52:59,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243524101] [2022-12-13 20:52:59,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243524101] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:59,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:59,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:59,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253431819] [2022-12-13 20:52:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:59,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:52:59,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:59,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:52:59,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:00,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:00,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 160 transitions, 1818 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:00,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:00,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:00,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:01,072 INFO L130 PetriNetUnfolder]: 98/295 cut-off events. [2022-12-13 20:53:01,073 INFO L131 PetriNetUnfolder]: For 1290/1290 co-relation queries the response was YES. [2022-12-13 20:53:01,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1819 conditions, 295 events. 98/295 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1494 event pairs, 14 based on Foata normal form. 2/297 useless extension candidates. Maximal degree in co-relation 1722. Up to 88 conditions per place. [2022-12-13 20:53:01,074 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 65 selfloop transitions, 93 changer transitions 12/170 dead transitions. [2022-12-13 20:53:01,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 170 transitions, 2174 flow [2022-12-13 20:53:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:53:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:53:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2953 transitions. [2022-12-13 20:53:01,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42464768478573484 [2022-12-13 20:53:01,076 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2953 transitions. [2022-12-13 20:53:01,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2953 transitions. [2022-12-13 20:53:01,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:01,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2953 transitions. [2022-12-13 20:53:01,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 155.42105263157896) internal successors, (2953), 19 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:01,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:01,081 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:01,081 INFO L175 Difference]: Start difference. First operand has 197 places, 160 transitions, 1818 flow. Second operand 19 states and 2953 transitions. [2022-12-13 20:53:01,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 170 transitions, 2174 flow [2022-12-13 20:53:01,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 170 transitions, 1996 flow, removed 2 selfloop flow, removed 16 redundant places. [2022-12-13 20:53:01,090 INFO L231 Difference]: Finished difference. Result has 199 places, 151 transitions, 1735 flow [2022-12-13 20:53:01,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1622, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1735, PETRI_PLACES=199, PETRI_TRANSITIONS=151} [2022-12-13 20:53:01,090 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 166 predicate places. [2022-12-13 20:53:01,091 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 151 transitions, 1735 flow [2022-12-13 20:53:01,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:01,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:01,091 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:01,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 20:53:01,091 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash -325328597, now seen corresponding path program 5 times [2022-12-13 20:53:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:01,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006813109] [2022-12-13 20:53:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:01,737 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 20:53:01,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:01,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006813109] [2022-12-13 20:53:01,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006813109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:01,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:01,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016716713] [2022-12-13 20:53:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:01,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:01,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:01,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:01,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:02,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:02,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 151 transitions, 1735 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:02,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:02,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:02,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:03,615 INFO L130 PetriNetUnfolder]: 93/278 cut-off events. [2022-12-13 20:53:03,615 INFO L131 PetriNetUnfolder]: For 1243/1243 co-relation queries the response was YES. [2022-12-13 20:53:03,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 278 events. 93/278 cut-off events. For 1243/1243 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1369 event pairs, 19 based on Foata normal form. 2/280 useless extension candidates. Maximal degree in co-relation 1679. Up to 152 conditions per place. [2022-12-13 20:53:03,617 INFO L137 encePairwiseOnDemand]: 351/366 looper letters, 72 selfloop transitions, 71 changer transitions 16/159 dead transitions. [2022-12-13 20:53:03,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 159 transitions, 2067 flow [2022-12-13 20:53:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 20:53:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 20:53:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3255 transitions. [2022-12-13 20:53:03,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42349726775956287 [2022-12-13 20:53:03,619 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3255 transitions. [2022-12-13 20:53:03,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3255 transitions. [2022-12-13 20:53:03,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:03,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3255 transitions. [2022-12-13 20:53:03,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 155.0) internal successors, (3255), 21 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:03,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 366.0) internal successors, (8052), 22 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:03,624 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 366.0) internal successors, (8052), 22 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:03,625 INFO L175 Difference]: Start difference. First operand has 199 places, 151 transitions, 1735 flow. Second operand 21 states and 3255 transitions. [2022-12-13 20:53:03,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 159 transitions, 2067 flow [2022-12-13 20:53:03,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 159 transitions, 1851 flow, removed 1 selfloop flow, removed 19 redundant places. [2022-12-13 20:53:03,634 INFO L231 Difference]: Finished difference. Result has 191 places, 138 transitions, 1529 flow [2022-12-13 20:53:03,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1505, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1529, PETRI_PLACES=191, PETRI_TRANSITIONS=138} [2022-12-13 20:53:03,635 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 158 predicate places. [2022-12-13 20:53:03,635 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 138 transitions, 1529 flow [2022-12-13 20:53:03,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:03,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:03,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:03,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 20:53:03,635 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:03,636 INFO L85 PathProgramCache]: Analyzing trace with hash -296249673, now seen corresponding path program 6 times [2022-12-13 20:53:03,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:03,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319705401] [2022-12-13 20:53:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:03,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:04,153 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 20:53:04,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:04,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319705401] [2022-12-13 20:53:04,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319705401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:04,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:04,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:53:04,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056052502] [2022-12-13 20:53:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:04,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:53:04,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:04,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:53:04,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:53:04,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 366 [2022-12-13 20:53:04,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 138 transitions, 1529 flow. Second operand has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:04,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:04,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 366 [2022-12-13 20:53:04,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:05,406 INFO L130 PetriNetUnfolder]: 86/257 cut-off events. [2022-12-13 20:53:05,406 INFO L131 PetriNetUnfolder]: For 1054/1054 co-relation queries the response was YES. [2022-12-13 20:53:05,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 257 events. 86/257 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1231 event pairs, 18 based on Foata normal form. 2/259 useless extension candidates. Maximal degree in co-relation 1474. Up to 136 conditions per place. [2022-12-13 20:53:05,407 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 70 selfloop transitions, 54 changer transitions 19/143 dead transitions. [2022-12-13 20:53:05,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 143 transitions, 1822 flow [2022-12-13 20:53:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:53:05,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:53:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2295 transitions. [2022-12-13 20:53:05,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2022-12-13 20:53:05,409 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2295 transitions. [2022-12-13 20:53:05,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2295 transitions. [2022-12-13 20:53:05,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:05,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2295 transitions. [2022-12-13 20:53:05,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 153.0) internal successors, (2295), 15 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:05,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:05,413 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 366.0) internal successors, (5856), 16 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:05,413 INFO L175 Difference]: Start difference. First operand has 191 places, 138 transitions, 1529 flow. Second operand 15 states and 2295 transitions. [2022-12-13 20:53:05,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 143 transitions, 1822 flow [2022-12-13 20:53:05,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 143 transitions, 1612 flow, removed 4 selfloop flow, removed 25 redundant places. [2022-12-13 20:53:05,420 INFO L231 Difference]: Finished difference. Result has 168 places, 122 transitions, 1279 flow [2022-12-13 20:53:05,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1307, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1279, PETRI_PLACES=168, PETRI_TRANSITIONS=122} [2022-12-13 20:53:05,421 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 135 predicate places. [2022-12-13 20:53:05,421 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 122 transitions, 1279 flow [2022-12-13 20:53:05,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:05,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:05,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:05,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 20:53:05,421 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:05,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash 952529423, now seen corresponding path program 5 times [2022-12-13 20:53:05,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:05,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366983970] [2022-12-13 20:53:05,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:05,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:05,994 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 20:53:05,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:05,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366983970] [2022-12-13 20:53:05,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366983970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:05,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:05,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:53:05,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251958841] [2022-12-13 20:53:05,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:53:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:05,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:53:05,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:53:06,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:06,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 122 transitions, 1279 flow. Second operand has 13 states, 13 states have (on average 153.15384615384616) internal successors, (1991), 13 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:06,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:06,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:06,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:07,186 INFO L130 PetriNetUnfolder]: 86/262 cut-off events. [2022-12-13 20:53:07,186 INFO L131 PetriNetUnfolder]: For 1037/1037 co-relation queries the response was YES. [2022-12-13 20:53:07,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 262 events. 86/262 cut-off events. For 1037/1037 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1264 event pairs, 10 based on Foata normal form. 6/268 useless extension candidates. Maximal degree in co-relation 1446. Up to 69 conditions per place. [2022-12-13 20:53:07,189 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 55 selfloop transitions, 70 changer transitions 29/154 dead transitions. [2022-12-13 20:53:07,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 154 transitions, 1863 flow [2022-12-13 20:53:07,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 20:53:07,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 20:53:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3560 transitions. [2022-12-13 20:53:07,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4229033024471371 [2022-12-13 20:53:07,193 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3560 transitions. [2022-12-13 20:53:07,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3560 transitions. [2022-12-13 20:53:07,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:07,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3560 transitions. [2022-12-13 20:53:07,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 154.7826086956522) internal successors, (3560), 23 states have internal predecessors, (3560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:07,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 366.0) internal successors, (8784), 24 states have internal predecessors, (8784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:07,200 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 366.0) internal successors, (8784), 24 states have internal predecessors, (8784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:07,200 INFO L175 Difference]: Start difference. First operand has 168 places, 122 transitions, 1279 flow. Second operand 23 states and 3560 transitions. [2022-12-13 20:53:07,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 154 transitions, 1863 flow [2022-12-13 20:53:07,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 154 transitions, 1671 flow, removed 9 selfloop flow, removed 14 redundant places. [2022-12-13 20:53:07,206 INFO L231 Difference]: Finished difference. Result has 164 places, 108 transitions, 1173 flow [2022-12-13 20:53:07,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1173, PETRI_PLACES=164, PETRI_TRANSITIONS=108} [2022-12-13 20:53:07,206 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 131 predicate places. [2022-12-13 20:53:07,206 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 108 transitions, 1173 flow [2022-12-13 20:53:07,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 153.15384615384616) internal successors, (1991), 13 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:07,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:07,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:07,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 20:53:07,206 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:07,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:07,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1759780781, now seen corresponding path program 7 times [2022-12-13 20:53:07,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:07,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042734765] [2022-12-13 20:53:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,896 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 20:53:07,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:07,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042734765] [2022-12-13 20:53:07,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042734765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:07,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:07,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703798157] [2022-12-13 20:53:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:07,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:07,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:07,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:08,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:08,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 108 transitions, 1173 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:08,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:08,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:08,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:09,223 INFO L130 PetriNetUnfolder]: 71/223 cut-off events. [2022-12-13 20:53:09,224 INFO L131 PetriNetUnfolder]: For 897/897 co-relation queries the response was YES. [2022-12-13 20:53:09,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 223 events. 71/223 cut-off events. For 897/897 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1026 event pairs, 18 based on Foata normal form. 2/225 useless extension candidates. Maximal degree in co-relation 1288. Up to 132 conditions per place. [2022-12-13 20:53:09,225 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 77 selfloop transitions, 20 changer transitions 31/128 dead transitions. [2022-12-13 20:53:09,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 128 transitions, 1604 flow [2022-12-13 20:53:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:53:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:53:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2020 transitions. [2022-12-13 20:53:09,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42454812946616227 [2022-12-13 20:53:09,227 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2020 transitions. [2022-12-13 20:53:09,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2020 transitions. [2022-12-13 20:53:09,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:09,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2020 transitions. [2022-12-13 20:53:09,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 155.3846153846154) internal successors, (2020), 13 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:09,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 366.0) internal successors, (5124), 14 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:09,230 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 366.0) internal successors, (5124), 14 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:09,230 INFO L175 Difference]: Start difference. First operand has 164 places, 108 transitions, 1173 flow. Second operand 13 states and 2020 transitions. [2022-12-13 20:53:09,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 128 transitions, 1604 flow [2022-12-13 20:53:09,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 128 transitions, 1374 flow, removed 33 selfloop flow, removed 25 redundant places. [2022-12-13 20:53:09,236 INFO L231 Difference]: Finished difference. Result has 142 places, 96 transitions, 922 flow [2022-12-13 20:53:09,236 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=922, PETRI_PLACES=142, PETRI_TRANSITIONS=96} [2022-12-13 20:53:09,236 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 109 predicate places. [2022-12-13 20:53:09,236 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 96 transitions, 922 flow [2022-12-13 20:53:09,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:09,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:09,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:09,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 20:53:09,237 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 20:53:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:09,237 INFO L85 PathProgramCache]: Analyzing trace with hash 969883337, now seen corresponding path program 6 times [2022-12-13 20:53:09,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:09,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068731968] [2022-12-13 20:53:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:09,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:09,859 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 20:53:09,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:09,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068731968] [2022-12-13 20:53:09,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068731968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:09,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:09,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691772136] [2022-12-13 20:53:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:09,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:09,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:09,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:09,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:10,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:10,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 96 transitions, 922 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:10,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:10,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:10,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:11,093 INFO L130 PetriNetUnfolder]: 58/188 cut-off events. [2022-12-13 20:53:11,093 INFO L131 PetriNetUnfolder]: For 616/616 co-relation queries the response was YES. [2022-12-13 20:53:11,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 188 events. 58/188 cut-off events. For 616/616 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 791 event pairs, 7 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 987. Up to 43 conditions per place. [2022-12-13 20:53:11,094 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 45 selfloop transitions, 67 changer transitions 1/113 dead transitions. [2022-12-13 20:53:11,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 113 transitions, 1227 flow [2022-12-13 20:53:11,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:53:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:53:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2948 transitions. [2022-12-13 20:53:11,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42392867414437735 [2022-12-13 20:53:11,096 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2948 transitions. [2022-12-13 20:53:11,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2948 transitions. [2022-12-13 20:53:11,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:11,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2948 transitions. [2022-12-13 20:53:11,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 155.1578947368421) internal successors, (2948), 19 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:11,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:11,101 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:11,101 INFO L175 Difference]: Start difference. First operand has 142 places, 96 transitions, 922 flow. Second operand 19 states and 2948 transitions. [2022-12-13 20:53:11,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 113 transitions, 1227 flow [2022-12-13 20:53:11,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 113 transitions, 1149 flow, removed 10 selfloop flow, removed 9 redundant places. [2022-12-13 20:53:11,105 INFO L231 Difference]: Finished difference. Result has 148 places, 103 transitions, 1075 flow [2022-12-13 20:53:11,105 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1075, PETRI_PLACES=148, PETRI_TRANSITIONS=103} [2022-12-13 20:53:11,105 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 115 predicate places. [2022-12-13 20:53:11,106 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 103 transitions, 1075 flow [2022-12-13 20:53:11,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:11,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:11,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:11,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 20:53:11,106 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1616137165, now seen corresponding path program 8 times [2022-12-13 20:53:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:11,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463205268] [2022-12-13 20:53:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:11,807 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 20:53:11,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:11,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463205268] [2022-12-13 20:53:11,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463205268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:11,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:11,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719150219] [2022-12-13 20:53:11,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:11,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:11,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:11,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:11,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:12,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:12,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 103 transitions, 1075 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:12,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:12,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:12,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:13,436 INFO L130 PetriNetUnfolder]: 61/205 cut-off events. [2022-12-13 20:53:13,436 INFO L131 PetriNetUnfolder]: For 744/744 co-relation queries the response was YES. [2022-12-13 20:53:13,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 205 events. 61/205 cut-off events. For 744/744 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 909 event pairs, 11 based on Foata normal form. 2/207 useless extension candidates. Maximal degree in co-relation 1082. Up to 92 conditions per place. [2022-12-13 20:53:13,437 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 64 selfloop transitions, 42 changer transitions 21/127 dead transitions. [2022-12-13 20:53:13,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 127 transitions, 1488 flow [2022-12-13 20:53:13,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 20:53:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 20:53:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3561 transitions. [2022-12-13 20:53:13,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4230220955096222 [2022-12-13 20:53:13,440 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3561 transitions. [2022-12-13 20:53:13,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3561 transitions. [2022-12-13 20:53:13,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:13,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3561 transitions. [2022-12-13 20:53:13,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 154.82608695652175) internal successors, (3561), 23 states have internal predecessors, (3561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:13,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 366.0) internal successors, (8784), 24 states have internal predecessors, (8784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:13,446 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 366.0) internal successors, (8784), 24 states have internal predecessors, (8784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:13,446 INFO L175 Difference]: Start difference. First operand has 148 places, 103 transitions, 1075 flow. Second operand 23 states and 3561 transitions. [2022-12-13 20:53:13,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 127 transitions, 1488 flow [2022-12-13 20:53:13,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 127 transitions, 1367 flow, removed 7 selfloop flow, removed 13 redundant places. [2022-12-13 20:53:13,451 INFO L231 Difference]: Finished difference. Result has 163 places, 98 transitions, 1003 flow [2022-12-13 20:53:13,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1003, PETRI_PLACES=163, PETRI_TRANSITIONS=98} [2022-12-13 20:53:13,451 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 130 predicate places. [2022-12-13 20:53:13,451 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 98 transitions, 1003 flow [2022-12-13 20:53:13,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:13,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:13,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:13,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 20:53:13,452 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:13,452 INFO L85 PathProgramCache]: Analyzing trace with hash 952816549, now seen corresponding path program 7 times [2022-12-13 20:53:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:13,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593402826] [2022-12-13 20:53:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:13,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:14,144 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 20:53:14,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:14,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593402826] [2022-12-13 20:53:14,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593402826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:14,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:14,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:14,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864418648] [2022-12-13 20:53:14,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:14,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:14,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:14,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:14,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:14,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 98 transitions, 1003 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:14,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:14,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:14,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:15,455 INFO L130 PetriNetUnfolder]: 47/169 cut-off events. [2022-12-13 20:53:15,455 INFO L131 PetriNetUnfolder]: For 662/662 co-relation queries the response was YES. [2022-12-13 20:53:15,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 169 events. 47/169 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 700 event pairs, 10 based on Foata normal form. 2/171 useless extension candidates. Maximal degree in co-relation 951. Up to 86 conditions per place. [2022-12-13 20:53:15,456 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 66 selfloop transitions, 37 changer transitions 0/103 dead transitions. [2022-12-13 20:53:15,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 103 transitions, 1215 flow [2022-12-13 20:53:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:53:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:53:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2477 transitions. [2022-12-13 20:53:15,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4229849726775956 [2022-12-13 20:53:15,458 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2477 transitions. [2022-12-13 20:53:15,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2477 transitions. [2022-12-13 20:53:15,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:15,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2477 transitions. [2022-12-13 20:53:15,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 154.8125) internal successors, (2477), 16 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:15,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:15,462 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:15,463 INFO L175 Difference]: Start difference. First operand has 163 places, 98 transitions, 1003 flow. Second operand 16 states and 2477 transitions. [2022-12-13 20:53:15,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 103 transitions, 1215 flow [2022-12-13 20:53:15,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 103 transitions, 1116 flow, removed 10 selfloop flow, removed 16 redundant places. [2022-12-13 20:53:15,467 INFO L231 Difference]: Finished difference. Result has 159 places, 98 transitions, 982 flow [2022-12-13 20:53:15,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=982, PETRI_PLACES=159, PETRI_TRANSITIONS=98} [2022-12-13 20:53:15,467 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 126 predicate places. [2022-12-13 20:53:15,467 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 98 transitions, 982 flow [2022-12-13 20:53:15,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:15,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:15,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:15,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 20:53:15,468 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 20:53:15,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash 952816525, now seen corresponding path program 9 times [2022-12-13 20:53:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:15,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289877180] [2022-12-13 20:53:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:16,041 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 20:53:16,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:16,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289877180] [2022-12-13 20:53:16,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289877180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:16,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:16,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:53:16,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414380352] [2022-12-13 20:53:16,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:16,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:53:16,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:16,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:53:16,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:53:16,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 366 [2022-12-13 20:53:16,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 98 transitions, 982 flow. Second operand has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:16,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:16,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 366 [2022-12-13 20:53:16,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:17,142 INFO L130 PetriNetUnfolder]: 46/166 cut-off events. [2022-12-13 20:53:17,142 INFO L131 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2022-12-13 20:53:17,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 975 conditions, 166 events. 46/166 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 686 event pairs, 13 based on Foata normal form. 2/168 useless extension candidates. Maximal degree in co-relation 909. Up to 92 conditions per place. [2022-12-13 20:53:17,143 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 55 selfloop transitions, 9 changer transitions 36/100 dead transitions. [2022-12-13 20:53:17,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 100 transitions, 1170 flow [2022-12-13 20:53:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:53:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:53:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1836 transitions. [2022-12-13 20:53:17,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2022-12-13 20:53:17,145 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1836 transitions. [2022-12-13 20:53:17,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1836 transitions. [2022-12-13 20:53:17,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:17,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1836 transitions. [2022-12-13 20:53:17,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:17,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:17,148 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 366.0) internal successors, (4758), 13 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:17,148 INFO L175 Difference]: Start difference. First operand has 159 places, 98 transitions, 982 flow. Second operand 12 states and 1836 transitions. [2022-12-13 20:53:17,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 100 transitions, 1170 flow [2022-12-13 20:53:17,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 100 transitions, 1104 flow, removed 0 selfloop flow, removed 13 redundant places. [2022-12-13 20:53:17,152 INFO L231 Difference]: Finished difference. Result has 157 places, 63 transitions, 560 flow [2022-12-13 20:53:17,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=560, PETRI_PLACES=157, PETRI_TRANSITIONS=63} [2022-12-13 20:53:17,152 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 124 predicate places. [2022-12-13 20:53:17,152 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 63 transitions, 560 flow [2022-12-13 20:53:17,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:17,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:17,153 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:17,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 20:53:17,153 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1304936111, now seen corresponding path program 10 times [2022-12-13 20:53:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:17,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992722493] [2022-12-13 20:53:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:17,808 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 20:53:17,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992722493] [2022-12-13 20:53:17,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992722493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:17,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:17,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:17,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693383556] [2022-12-13 20:53:17,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:17,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:17,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:17,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:17,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:18,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:18,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 63 transitions, 560 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:18,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:18,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:18,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:19,779 INFO L130 PetriNetUnfolder]: 33/111 cut-off events. [2022-12-13 20:53:19,779 INFO L131 PetriNetUnfolder]: For 356/356 co-relation queries the response was YES. [2022-12-13 20:53:19,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 111 events. 33/111 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 357 event pairs, 5 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 609. Up to 31 conditions per place. [2022-12-13 20:53:19,780 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 36 selfloop transitions, 42 changer transitions 0/78 dead transitions. [2022-12-13 20:53:19,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 78 transitions, 786 flow [2022-12-13 20:53:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 20:53:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-13 20:53:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4020 transitions. [2022-12-13 20:53:19,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4224464060529634 [2022-12-13 20:53:19,783 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4020 transitions. [2022-12-13 20:53:19,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4020 transitions. [2022-12-13 20:53:19,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:19,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4020 transitions. [2022-12-13 20:53:19,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 154.6153846153846) internal successors, (4020), 26 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:19,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 366.0) internal successors, (9882), 27 states have internal predecessors, (9882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:19,789 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 366.0) internal successors, (9882), 27 states have internal predecessors, (9882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:19,790 INFO L175 Difference]: Start difference. First operand has 157 places, 63 transitions, 560 flow. Second operand 26 states and 4020 transitions. [2022-12-13 20:53:19,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 78 transitions, 786 flow [2022-12-13 20:53:19,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 78 transitions, 679 flow, removed 6 selfloop flow, removed 30 redundant places. [2022-12-13 20:53:19,793 INFO L231 Difference]: Finished difference. Result has 129 places, 66 transitions, 589 flow [2022-12-13 20:53:19,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=589, PETRI_PLACES=129, PETRI_TRANSITIONS=66} [2022-12-13 20:53:19,793 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 96 predicate places. [2022-12-13 20:53:19,793 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 66 transitions, 589 flow [2022-12-13 20:53:19,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:19,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:19,793 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:19,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 20:53:19,794 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:19,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:19,794 INFO L85 PathProgramCache]: Analyzing trace with hash 521134901, now seen corresponding path program 11 times [2022-12-13 20:53:19,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:19,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449734326] [2022-12-13 20:53:19,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:19,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:53:20,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:20,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449734326] [2022-12-13 20:53:20,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449734326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:20,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:20,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:53:20,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930488874] [2022-12-13 20:53:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:20,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:53:20,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:53:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:53:21,216 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 366 [2022-12-13 20:53:21,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 66 transitions, 589 flow. Second operand has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:21,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:21,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 366 [2022-12-13 20:53:21,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:21,601 INFO L130 PetriNetUnfolder]: 32/108 cut-off events. [2022-12-13 20:53:21,601 INFO L131 PetriNetUnfolder]: For 355/355 co-relation queries the response was YES. [2022-12-13 20:53:21,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 108 events. 32/108 cut-off events. For 355/355 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 343 event pairs, 6 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 593. Up to 33 conditions per place. [2022-12-13 20:53:21,602 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 30 selfloop transitions, 30 changer transitions 10/70 dead transitions. [2022-12-13 20:53:21,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 70 transitions, 727 flow [2022-12-13 20:53:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:53:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:53:21,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1993 transitions. [2022-12-13 20:53:21,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41887347625052546 [2022-12-13 20:53:21,604 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1993 transitions. [2022-12-13 20:53:21,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1993 transitions. [2022-12-13 20:53:21,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:21,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1993 transitions. [2022-12-13 20:53:21,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 153.30769230769232) internal successors, (1993), 13 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:21,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 366.0) internal successors, (5124), 14 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:21,608 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 366.0) internal successors, (5124), 14 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:21,608 INFO L175 Difference]: Start difference. First operand has 129 places, 66 transitions, 589 flow. Second operand 13 states and 1993 transitions. [2022-12-13 20:53:21,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 70 transitions, 727 flow [2022-12-13 20:53:21,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 70 transitions, 576 flow, removed 11 selfloop flow, removed 26 redundant places. [2022-12-13 20:53:21,610 INFO L231 Difference]: Finished difference. Result has 114 places, 57 transitions, 428 flow [2022-12-13 20:53:21,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=428, PETRI_PLACES=114, PETRI_TRANSITIONS=57} [2022-12-13 20:53:21,611 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 81 predicate places. [2022-12-13 20:53:21,611 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 57 transitions, 428 flow [2022-12-13 20:53:21,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 151.15384615384616) internal successors, (1965), 13 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:21,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:21,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:21,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 20:53:21,611 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 20:53:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:21,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1184455565, now seen corresponding path program 8 times [2022-12-13 20:53:21,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:21,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81116569] [2022-12-13 20:53:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:21,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:22,192 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 20:53:22,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:22,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81116569] [2022-12-13 20:53:22,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81116569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:22,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:22,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:53:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595154108] [2022-12-13 20:53:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:22,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:53:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:53:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:53:22,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:22,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 57 transitions, 428 flow. Second operand has 13 states, 13 states have (on average 153.15384615384616) internal successors, (1991), 13 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:22,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:22,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:22,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:23,517 INFO L130 PetriNetUnfolder]: 27/91 cut-off events. [2022-12-13 20:53:23,517 INFO L131 PetriNetUnfolder]: For 212/212 co-relation queries the response was YES. [2022-12-13 20:53:23,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 91 events. 27/91 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 248 event pairs, 3 based on Foata normal form. 2/93 useless extension candidates. Maximal degree in co-relation 435. Up to 17 conditions per place. [2022-12-13 20:53:23,518 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 19 selfloop transitions, 24 changer transitions 25/68 dead transitions. [2022-12-13 20:53:23,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 68 transitions, 584 flow [2022-12-13 20:53:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 20:53:23,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-13 20:53:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4012 transitions. [2022-12-13 20:53:23,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4216057166876839 [2022-12-13 20:53:23,521 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4012 transitions. [2022-12-13 20:53:23,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4012 transitions. [2022-12-13 20:53:23,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:23,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4012 transitions. [2022-12-13 20:53:23,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 154.30769230769232) internal successors, (4012), 26 states have internal predecessors, (4012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:23,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 366.0) internal successors, (9882), 27 states have internal predecessors, (9882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:23,532 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 366.0) internal successors, (9882), 27 states have internal predecessors, (9882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:23,532 INFO L175 Difference]: Start difference. First operand has 114 places, 57 transitions, 428 flow. Second operand 26 states and 4012 transitions. [2022-12-13 20:53:23,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 68 transitions, 584 flow [2022-12-13 20:53:23,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 68 transitions, 511 flow, removed 4 selfloop flow, removed 12 redundant places. [2022-12-13 20:53:23,534 INFO L231 Difference]: Finished difference. Result has 119 places, 35 transitions, 267 flow [2022-12-13 20:53:23,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=267, PETRI_PLACES=119, PETRI_TRANSITIONS=35} [2022-12-13 20:53:23,535 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 86 predicate places. [2022-12-13 20:53:23,535 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 35 transitions, 267 flow [2022-12-13 20:53:23,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 153.15384615384616) internal successors, (1991), 13 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:23,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:23,536 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:23,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 20:53:23,536 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 20:53:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:23,536 INFO L85 PathProgramCache]: Analyzing trace with hash -203532971, now seen corresponding path program 12 times [2022-12-13 20:53:23,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:23,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314173412] [2022-12-13 20:53:23,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:23,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:24,287 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 20:53:24,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:24,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314173412] [2022-12-13 20:53:24,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314173412] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:24,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:24,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:24,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52748394] [2022-12-13 20:53:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:24,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:24,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:25,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:25,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 35 transitions, 267 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:25,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:25,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:25,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:26,091 INFO L130 PetriNetUnfolder]: 23/79 cut-off events. [2022-12-13 20:53:26,091 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2022-12-13 20:53:26,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 79 events. 23/79 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 208 event pairs, 5 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 385. Up to 44 conditions per place. [2022-12-13 20:53:26,091 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 23 selfloop transitions, 9 changer transitions 21/53 dead transitions. [2022-12-13 20:53:26,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 53 transitions, 470 flow [2022-12-13 20:53:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:53:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:53:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2471 transitions. [2022-12-13 20:53:26,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4219603825136612 [2022-12-13 20:53:26,093 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2471 transitions. [2022-12-13 20:53:26,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2471 transitions. [2022-12-13 20:53:26,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:26,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2471 transitions. [2022-12-13 20:53:26,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 154.4375) internal successors, (2471), 16 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:26,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:26,097 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:26,097 INFO L175 Difference]: Start difference. First operand has 119 places, 35 transitions, 267 flow. Second operand 16 states and 2471 transitions. [2022-12-13 20:53:26,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 53 transitions, 470 flow [2022-12-13 20:53:26,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 53 transitions, 381 flow, removed 2 selfloop flow, removed 21 redundant places. [2022-12-13 20:53:26,098 INFO L231 Difference]: Finished difference. Result has 91 places, 31 transitions, 215 flow [2022-12-13 20:53:26,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=215, PETRI_PLACES=91, PETRI_TRANSITIONS=31} [2022-12-13 20:53:26,099 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 58 predicate places. [2022-12-13 20:53:26,099 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 31 transitions, 215 flow [2022-12-13 20:53:26,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:26,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:26,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:26,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 20:53:26,099 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:53:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1382667587, now seen corresponding path program 13 times [2022-12-13 20:53:26,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:26,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330001190] [2022-12-13 20:53:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:26,826 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 20:53:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:26,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330001190] [2022-12-13 20:53:26,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330001190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:26,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:26,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:26,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803532812] [2022-12-13 20:53:26,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:26,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:26,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:26,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:26,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:27,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:27,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 31 transitions, 215 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:27,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:27,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:27,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:28,391 INFO L130 PetriNetUnfolder]: 20/72 cut-off events. [2022-12-13 20:53:28,391 INFO L131 PetriNetUnfolder]: For 140/140 co-relation queries the response was YES. [2022-12-13 20:53:28,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 72 events. 20/72 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 194 event pairs, 5 based on Foata normal form. 2/73 useless extension candidates. Maximal degree in co-relation 344. Up to 41 conditions per place. [2022-12-13 20:53:28,391 INFO L137 encePairwiseOnDemand]: 353/366 looper letters, 19 selfloop transitions, 11 changer transitions 16/46 dead transitions. [2022-12-13 20:53:28,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 46 transitions, 388 flow [2022-12-13 20:53:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:53:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:53:28,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2467 transitions. [2022-12-13 20:53:28,393 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4212773224043716 [2022-12-13 20:53:28,393 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2467 transitions. [2022-12-13 20:53:28,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2467 transitions. [2022-12-13 20:53:28,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:28,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2467 transitions. [2022-12-13 20:53:28,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 154.1875) internal successors, (2467), 16 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:28,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:28,398 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 366.0) internal successors, (6222), 17 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:28,398 INFO L175 Difference]: Start difference. First operand has 91 places, 31 transitions, 215 flow. Second operand 16 states and 2467 transitions. [2022-12-13 20:53:28,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 46 transitions, 388 flow [2022-12-13 20:53:28,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 46 transitions, 347 flow, removed 11 selfloop flow, removed 12 redundant places. [2022-12-13 20:53:28,399 INFO L231 Difference]: Finished difference. Result has 88 places, 29 transitions, 211 flow [2022-12-13 20:53:28,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=211, PETRI_PLACES=88, PETRI_TRANSITIONS=29} [2022-12-13 20:53:28,399 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 55 predicate places. [2022-12-13 20:53:28,399 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 29 transitions, 211 flow [2022-12-13 20:53:28,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:28,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:28,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:28,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-13 20:53:28,400 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 20:53:28,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1736273155, now seen corresponding path program 14 times [2022-12-13 20:53:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:28,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191560110] [2022-12-13 20:53:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:29,152 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 20:53:29,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:29,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191560110] [2022-12-13 20:53:29,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191560110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:29,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:29,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:29,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125279235] [2022-12-13 20:53:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:29,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:29,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:29,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:29,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:30,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:30,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 29 transitions, 211 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:30,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:30,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:30,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:31,120 INFO L130 PetriNetUnfolder]: 14/58 cut-off events. [2022-12-13 20:53:31,120 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2022-12-13 20:53:31,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 58 events. 14/58 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 150 event pairs, 2 based on Foata normal form. 2/60 useless extension candidates. Maximal degree in co-relation 320. Up to 11 conditions per place. [2022-12-13 20:53:31,120 INFO L137 encePairwiseOnDemand]: 352/366 looper letters, 12 selfloop transitions, 18 changer transitions 15/45 dead transitions. [2022-12-13 20:53:31,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 45 transitions, 380 flow [2022-12-13 20:53:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:53:31,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:53:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2932 transitions. [2022-12-13 20:53:31,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42162784009203336 [2022-12-13 20:53:31,125 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2932 transitions. [2022-12-13 20:53:31,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2932 transitions. [2022-12-13 20:53:31,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:31,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2932 transitions. [2022-12-13 20:53:31,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 154.31578947368422) internal successors, (2932), 19 states have internal predecessors, (2932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:31,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:31,130 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 366.0) internal successors, (7320), 20 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:31,130 INFO L175 Difference]: Start difference. First operand has 88 places, 29 transitions, 211 flow. Second operand 19 states and 2932 transitions. [2022-12-13 20:53:31,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 45 transitions, 380 flow [2022-12-13 20:53:31,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 45 transitions, 344 flow, removed 7 selfloop flow, removed 11 redundant places. [2022-12-13 20:53:31,131 INFO L231 Difference]: Finished difference. Result has 89 places, 23 transitions, 188 flow [2022-12-13 20:53:31,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=188, PETRI_PLACES=89, PETRI_TRANSITIONS=23} [2022-12-13 20:53:31,131 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 56 predicate places. [2022-12-13 20:53:31,132 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 23 transitions, 188 flow [2022-12-13 20:53:31,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:31,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:31,132 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:31,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-13 20:53:31,132 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 20:53:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:31,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1501292491, now seen corresponding path program 15 times [2022-12-13 20:53:31,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:31,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771066312] [2022-12-13 20:53:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:31,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:31,849 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 20:53:31,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:31,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771066312] [2022-12-13 20:53:31,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771066312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:31,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:31,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:31,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474438665] [2022-12-13 20:53:31,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:31,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:31,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:31,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:31,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:32,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:32,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 23 transitions, 188 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:32,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:32,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:32,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:33,171 INFO L130 PetriNetUnfolder]: 5/32 cut-off events. [2022-12-13 20:53:33,171 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-13 20:53:33,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 32 events. 5/32 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 2 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 195. Up to 17 conditions per place. [2022-12-13 20:53:33,172 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 10 selfloop transitions, 14 changer transitions 0/24 dead transitions. [2022-12-13 20:53:33,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 24 transitions, 226 flow [2022-12-13 20:53:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:53:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:53:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2150 transitions. [2022-12-13 20:53:33,173 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41959406713505076 [2022-12-13 20:53:33,173 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2150 transitions. [2022-12-13 20:53:33,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2150 transitions. [2022-12-13 20:53:33,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:33,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2150 transitions. [2022-12-13 20:53:33,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 153.57142857142858) internal successors, (2150), 14 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:33,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:33,177 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:33,177 INFO L175 Difference]: Start difference. First operand has 89 places, 23 transitions, 188 flow. Second operand 14 states and 2150 transitions. [2022-12-13 20:53:33,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 24 transitions, 226 flow [2022-12-13 20:53:33,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 24 transitions, 161 flow, removed 4 selfloop flow, removed 20 redundant places. [2022-12-13 20:53:33,178 INFO L231 Difference]: Finished difference. Result has 66 places, 22 transitions, 137 flow [2022-12-13 20:53:33,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=137, PETRI_PLACES=66, PETRI_TRANSITIONS=22} [2022-12-13 20:53:33,178 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 33 predicate places. [2022-12-13 20:53:33,178 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 22 transitions, 137 flow [2022-12-13 20:53:33,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:33,178 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:53:33,179 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:33,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-13 20:53:33,179 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 20:53:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1501292467, now seen corresponding path program 9 times [2022-12-13 20:53:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:33,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462543365] [2022-12-13 20:53:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:33,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:33,837 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 20:53:33,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:33,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462543365] [2022-12-13 20:53:33,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462543365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:33,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:33,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:53:33,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408624694] [2022-12-13 20:53:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:33,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:53:33,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:33,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:53:33,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:53:34,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 366 [2022-12-13 20:53:34,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 22 transitions, 137 flow. Second operand has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:34,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:53:34,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 366 [2022-12-13 20:53:34,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:53:35,136 INFO L130 PetriNetUnfolder]: 3/26 cut-off events. [2022-12-13 20:53:35,136 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 20:53:35,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 26 events. 3/26 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 4/30 useless extension candidates. Maximal degree in co-relation 86. Up to 11 conditions per place. [2022-12-13 20:53:35,136 INFO L137 encePairwiseOnDemand]: 354/366 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2022-12-13 20:53:35,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 22 transitions, 139 flow [2022-12-13 20:53:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:53:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:53:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2149 transitions. [2022-12-13 20:53:35,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41939890710382516 [2022-12-13 20:53:35,138 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2149 transitions. [2022-12-13 20:53:35,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2149 transitions. [2022-12-13 20:53:35,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:53:35,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2149 transitions. [2022-12-13 20:53:35,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 153.5) internal successors, (2149), 14 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:35,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:35,141 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 366.0) internal successors, (5490), 15 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:35,141 INFO L175 Difference]: Start difference. First operand has 66 places, 22 transitions, 137 flow. Second operand 14 states and 2149 transitions. [2022-12-13 20:53:35,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 22 transitions, 139 flow [2022-12-13 20:53:35,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 22 transitions, 109 flow, removed 1 selfloop flow, removed 13 redundant places. [2022-12-13 20:53:35,142 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2022-12-13 20:53:35,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2022-12-13 20:53:35,142 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2022-12-13 20:53:35,142 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2022-12-13 20:53:35,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.07142857142858) internal successors, (2143), 14 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:53:35,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-12-13 20:53:35,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-13 20:53:35,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 20:53:35,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 20:53:35,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 20:53:35,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 20:53:35,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 20:53:35,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 20:53:35,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-13 20:53:35,145 INFO L445 BasicCegarLoop]: Path program histogram: [15, 9, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:35,148 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:53:35,148 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:53:35,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:53:35 BasicIcfg [2022-12-13 20:53:35,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:53:35,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:53:35,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:53:35,150 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:53:35,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:04" (3/4) ... [2022-12-13 20:53:35,152 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:53:35,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-12-13 20:53:35,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-12-13 20:53:35,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 20:53:35,160 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:53:35,160 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:53:35,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:53:35,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:53:35,183 INFO L158 Benchmark]: Toolchain (without parser) took 91673.19ms. Allocated memory was 127.9MB in the beginning and 247.5MB in the end (delta: 119.5MB). Free memory was 71.4MB in the beginning and 66.2MB in the end (delta: 5.3MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,183 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:53:35,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.98ms. Allocated memory was 127.9MB in the beginning and 205.5MB in the end (delta: 77.6MB). Free memory was 71.4MB in the beginning and 127.2MB in the end (delta: -55.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.35ms. Allocated memory is still 205.5MB. Free memory was 127.2MB in the beginning and 124.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,184 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 205.5MB. Free memory was 124.0MB in the beginning and 120.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,184 INFO L158 Benchmark]: RCFGBuilder took 511.09ms. Allocated memory is still 205.5MB. Free memory was 120.9MB in the beginning and 95.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,184 INFO L158 Benchmark]: TraceAbstraction took 90361.78ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 95.7MB in the beginning and 70.4MB in the end (delta: 25.3MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,184 INFO L158 Benchmark]: Witness Printer took 32.73ms. Allocated memory is still 247.5MB. Free memory was 70.4MB in the beginning and 66.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:53:35,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.98ms. Allocated memory was 127.9MB in the beginning and 205.5MB in the end (delta: 77.6MB). Free memory was 71.4MB in the beginning and 127.2MB in the end (delta: -55.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.35ms. Allocated memory is still 205.5MB. Free memory was 127.2MB in the beginning and 124.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 205.5MB. Free memory was 124.0MB in the beginning and 120.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 511.09ms. Allocated memory is still 205.5MB. Free memory was 120.9MB in the beginning and 95.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 90361.78ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 95.7MB in the beginning and 70.4MB in the end (delta: 25.3MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Witness Printer took 32.73ms. Allocated memory is still 247.5MB. Free memory was 70.4MB in the beginning and 66.2MB in the end (delta: 4.2MB). 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: 8.9s, 166 PlacesBefore, 33 PlacesAfterwards, 163 TransitionsBefore, 27 TransitionsAfterwards, 4500 CoEnabledTransitionPairs, 8 FixpointIterations, 68 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 169 TotalNumberOfCompositions, 9640 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4443, independent: 4150, independent conditional: 0, independent unconditional: 4150, dependent: 293, dependent conditional: 0, dependent unconditional: 293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2555, independent: 2501, independent conditional: 0, independent unconditional: 2501, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4443, independent: 1649, independent conditional: 0, independent unconditional: 1649, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 2555, unknown conditional: 0, unknown unconditional: 2555] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1712]: 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, 210 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: 90.2s, OverallIterations: 48, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 54.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17679 SdHoareTripleChecker+Valid, 38.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14898 mSDsluCounter, 17425 SdHoareTripleChecker+Invalid, 33.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17249 mSDsCounter, 2219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69261 IncrementalHoareTripleChecker+Invalid, 71480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2219 mSolverCounterUnsat, 176 mSDtfsCounter, 69261 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 978 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 917 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3336 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1851occurred in iteration=29, InterpolantAutomatonStates: 735, 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, 0.5s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 11969 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 48 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 20:53:35,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab4f846-9e52-404f-a53b-f06176444521/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