./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:50:25,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:50:25,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:50:25,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:50:25,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:50:25,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:50:25,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:50:25,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:50:25,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:50:25,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:50:25,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:50:25,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:50:25,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:50:25,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:50:25,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:50:25,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:50:25,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:50:25,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:50:25,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:50:25,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:50:25,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:50:25,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:50:25,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:50:25,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:50:25,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:50:25,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:50:25,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:50:25,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:50:25,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:50:25,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:50:25,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:50:25,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:50:25,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:50:25,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:50:25,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:50:25,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:50:25,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:50:25,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:50:25,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:50:25,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:50:25,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:50:25,268 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:50:25,291 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:50:25,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:50:25,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:50:25,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:50:25,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:50:25,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:50:25,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:50:25,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:50:25,294 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:50:25,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:50:25,295 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:50:25,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:50:25,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:50:25,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:50:25,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:50:25,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:50:25,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:50:25,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:50:25,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:50:25,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:25,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:50:25,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:50:25,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:50:25,298 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:50:25,299 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:50:25,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:50:25,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:50:25,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:50:25,581 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:50:25,581 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:50:25,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-30 08:50:26,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:50:26,962 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:50:26,962 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-30 08:50:26,997 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/769c78688/fdc1a83717c746348e5e652413f3fa96/FLAG0d4cf09d9 [2023-08-30 08:50:27,007 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/769c78688/fdc1a83717c746348e5e652413f3fa96 [2023-08-30 08:50:27,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:50:27,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:50:27,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:27,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:50:27,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:50:27,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411e7020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27, skipping insertion in model container [2023-08-30 08:50:27,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:50:27,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:50:27,202 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:27,518 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[75002,75015] [2023-08-30 08:50:27,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:27,557 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:50:27,564 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:27,599 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[75002,75015] [2023-08-30 08:50:27,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:27,713 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:27,713 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:27,713 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:27,718 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:50:27,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27 WrapperNode [2023-08-30 08:50:27,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:27,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:27,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:50:27,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:50:27,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,780 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-08-30 08:50:27,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:27,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:50:27,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:50:27,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:50:27,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:50:27,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:50:27,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:50:27,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:50:27,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:27,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:50:27,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:50:27,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:50:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:50:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:50:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:50:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:50:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 08:50:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:50:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:50:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:50:27,876 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:50:28,104 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:50:28,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:50:28,309 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:50:28,354 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:50:28,355 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:50:28,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:28 BoogieIcfgContainer [2023-08-30 08:50:28,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:50:28,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:50:28,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:50:28,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:50:28,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:50:27" (1/3) ... [2023-08-30 08:50:28,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4780364f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:28, skipping insertion in model container [2023-08-30 08:50:28,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27" (2/3) ... [2023-08-30 08:50:28,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4780364f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:28, skipping insertion in model container [2023-08-30 08:50:28,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:28" (3/3) ... [2023-08-30 08:50:28,366 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-08-30 08:50:28,371 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:50:28,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:50:28,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 08:50:28,377 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:50:28,413 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 08:50:28,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 08:50:28,527 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2023-08-30 08:50:28,527 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:50:28,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 8/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 365 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 108. Up to 4 conditions per place. [2023-08-30 08:50:28,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 08:50:28,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:28,547 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:50:28,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:28,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:28,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:28,583 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-08-30 08:50:28,584 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:50:28,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 127 events. 2/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-30 08:50:28,586 INFO L119 LiptonReduction]: Number of co-enabled transitions 3480 [2023-08-30 08:50:33,241 INFO L134 LiptonReduction]: Checked pairs total: 9974 [2023-08-30 08:50:33,241 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-30 08:50:33,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:50:33,263 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;@3d2210e8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:50:33,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 08:50:33,269 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-30 08:50:33,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:33,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:33,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:50:33,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:33,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash 522376557, now seen corresponding path program 1 times [2023-08-30 08:50:33,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:33,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278336728] [2023-08-30 08:50:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:33,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:33,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278336728] [2023-08-30 08:50:33,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278336728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:33,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:33,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:50:33,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992842107] [2023-08-30 08:50:33,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:33,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:50:33,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:33,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:50:33,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:50:34,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 268 [2023-08-30 08:50:34,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:34,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 268 [2023-08-30 08:50:34,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:34,243 INFO L130 PetriNetUnfolder]: 523/938 cut-off events. [2023-08-30 08:50:34,244 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-08-30 08:50:34,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 938 events. 523/938 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4326 event pairs, 398 based on Foata normal form. 0/771 useless extension candidates. Maximal degree in co-relation 1756. Up to 870 conditions per place. [2023-08-30 08:50:34,249 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 23 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-08-30 08:50:34,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 137 flow [2023-08-30 08:50:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2023-08-30 08:50:34,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48009950248756217 [2023-08-30 08:50:34,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2023-08-30 08:50:34,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2023-08-30 08:50:34,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:34,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2023-08-30 08:50:34,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,279 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,281 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 772 transitions. [2023-08-30 08:50:34,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 137 flow [2023-08-30 08:50:34,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:34,286 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-08-30 08:50:34,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-08-30 08:50:34,291 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 08:50:34,293 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-08-30 08:50:34,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:34,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:50:34,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:50:34,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:34,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash -986193261, now seen corresponding path program 1 times [2023-08-30 08:50:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:34,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399302416] [2023-08-30 08:50:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:34,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:34,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:34,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399302416] [2023-08-30 08:50:34,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399302416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:34,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:34,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:34,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451439139] [2023-08-30 08:50:34,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:34,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:34,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:34,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:34,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:34,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 268 [2023-08-30 08:50:34,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:34,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 268 [2023-08-30 08:50:34,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:35,019 INFO L130 PetriNetUnfolder]: 513/922 cut-off events. [2023-08-30 08:50:35,020 INFO L131 PetriNetUnfolder]: For 170/170 co-relation queries the response was YES. [2023-08-30 08:50:35,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2016 conditions, 922 events. 513/922 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4308 event pairs, 304 based on Foata normal form. 3/802 useless extension candidates. Maximal degree in co-relation 1727. Up to 833 conditions per place. [2023-08-30 08:50:35,025 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 32 selfloop transitions, 14 changer transitions 0/48 dead transitions. [2023-08-30 08:50:35,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 241 flow [2023-08-30 08:50:35,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 777 transitions. [2023-08-30 08:50:35,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4832089552238806 [2023-08-30 08:50:35,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 777 transitions. [2023-08-30 08:50:35,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 777 transitions. [2023-08-30 08:50:35,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:35,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 777 transitions. [2023-08-30 08:50:35,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,032 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 777 transitions. [2023-08-30 08:50:35,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 241 flow [2023-08-30 08:50:35,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:35,034 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 186 flow [2023-08-30 08:50:35,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2023-08-30 08:50:35,035 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2023-08-30 08:50:35,035 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 186 flow [2023-08-30 08:50:35,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:35,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:35,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:50:35,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:35,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -514989560, now seen corresponding path program 1 times [2023-08-30 08:50:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:35,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461193184] [2023-08-30 08:50:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:35,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:35,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461193184] [2023-08-30 08:50:35,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461193184] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:35,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:35,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:35,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635608329] [2023-08-30 08:50:35,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:35,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:35,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:35,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:35,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:35,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 268 [2023-08-30 08:50:35,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:35,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 268 [2023-08-30 08:50:35,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:35,659 INFO L130 PetriNetUnfolder]: 505/884 cut-off events. [2023-08-30 08:50:35,659 INFO L131 PetriNetUnfolder]: For 545/545 co-relation queries the response was YES. [2023-08-30 08:50:35,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2285 conditions, 884 events. 505/884 cut-off events. For 545/545 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3986 event pairs, 350 based on Foata normal form. 0/766 useless extension candidates. Maximal degree in co-relation 1951. Up to 829 conditions per place. [2023-08-30 08:50:35,663 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 36 selfloop transitions, 16 changer transitions 0/54 dead transitions. [2023-08-30 08:50:35,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 358 flow [2023-08-30 08:50:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 775 transitions. [2023-08-30 08:50:35,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48196517412935325 [2023-08-30 08:50:35,665 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 775 transitions. [2023-08-30 08:50:35,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 775 transitions. [2023-08-30 08:50:35,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:35,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 775 transitions. [2023-08-30 08:50:35,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,669 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,670 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 186 flow. Second operand 6 states and 775 transitions. [2023-08-30 08:50:35,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 358 flow [2023-08-30 08:50:35,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 342 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:35,672 INFO L231 Difference]: Finished difference. Result has 52 places, 50 transitions, 276 flow [2023-08-30 08:50:35,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=52, PETRI_TRANSITIONS=50} [2023-08-30 08:50:35,673 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2023-08-30 08:50:35,673 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 276 flow [2023-08-30 08:50:35,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:35,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:35,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:50:35,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:35,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:35,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1456049639, now seen corresponding path program 1 times [2023-08-30 08:50:35,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:35,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481852216] [2023-08-30 08:50:35,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:35,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:36,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:36,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481852216] [2023-08-30 08:50:36,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481852216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:36,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:36,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323880345] [2023-08-30 08:50:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:36,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:36,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:36,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:50:36,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 120.14285714285714) internal successors, (841), 7 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:36,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:50:36,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:36,483 INFO L130 PetriNetUnfolder]: 497/870 cut-off events. [2023-08-30 08:50:36,484 INFO L131 PetriNetUnfolder]: For 443/443 co-relation queries the response was YES. [2023-08-30 08:50:36,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 870 events. 497/870 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3866 event pairs, 240 based on Foata normal form. 2/796 useless extension candidates. Maximal degree in co-relation 2013. Up to 791 conditions per place. [2023-08-30 08:50:36,488 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 42 selfloop transitions, 22 changer transitions 0/66 dead transitions. [2023-08-30 08:50:36,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 469 flow [2023-08-30 08:50:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 762 transitions. [2023-08-30 08:50:36,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47388059701492535 [2023-08-30 08:50:36,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 762 transitions. [2023-08-30 08:50:36,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 762 transitions. [2023-08-30 08:50:36,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:36,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 762 transitions. [2023-08-30 08:50:36,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,494 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,494 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 276 flow. Second operand 6 states and 762 transitions. [2023-08-30 08:50:36,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 469 flow [2023-08-30 08:50:36,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 66 transitions, 449 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:36,497 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 375 flow [2023-08-30 08:50:36,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=375, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2023-08-30 08:50:36,497 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2023-08-30 08:50:36,497 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 375 flow [2023-08-30 08:50:36,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.14285714285714) internal successors, (841), 7 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:36,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:36,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:50:36,498 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:36,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:36,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1215693680, now seen corresponding path program 1 times [2023-08-30 08:50:36,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:36,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553323592] [2023-08-30 08:50:36,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:36,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:36,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553323592] [2023-08-30 08:50:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553323592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:36,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792653599] [2023-08-30 08:50:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:36,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:37,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:50:37,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 375 flow. Second operand has 7 states, 7 states have (on average 120.14285714285714) internal successors, (841), 7 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:37,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:50:37,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:37,228 INFO L130 PetriNetUnfolder]: 509/872 cut-off events. [2023-08-30 08:50:37,228 INFO L131 PetriNetUnfolder]: For 897/897 co-relation queries the response was YES. [2023-08-30 08:50:37,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2706 conditions, 872 events. 509/872 cut-off events. For 897/897 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3831 event pairs, 268 based on Foata normal form. 2/798 useless extension candidates. Maximal degree in co-relation 2501. Up to 820 conditions per place. [2023-08-30 08:50:37,233 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 43 selfloop transitions, 28 changer transitions 0/73 dead transitions. [2023-08-30 08:50:37,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 73 transitions, 611 flow [2023-08-30 08:50:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2023-08-30 08:50:37,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732587064676617 [2023-08-30 08:50:37,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2023-08-30 08:50:37,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2023-08-30 08:50:37,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:37,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2023-08-30 08:50:37,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,239 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 375 flow. Second operand 6 states and 761 transitions. [2023-08-30 08:50:37,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 73 transitions, 611 flow [2023-08-30 08:50:37,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 73 transitions, 591 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:37,242 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 500 flow [2023-08-30 08:50:37,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=500, PETRI_PLACES=65, PETRI_TRANSITIONS=68} [2023-08-30 08:50:37,243 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2023-08-30 08:50:37,243 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 500 flow [2023-08-30 08:50:37,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.14285714285714) internal successors, (841), 7 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:37,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:37,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:50:37,244 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:37,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:37,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1215290060, now seen corresponding path program 2 times [2023-08-30 08:50:37,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:37,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147264509] [2023-08-30 08:50:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:37,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:37,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:37,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147264509] [2023-08-30 08:50:37,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147264509] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:37,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:37,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57461218] [2023-08-30 08:50:37,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:37,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:37,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:37,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:37,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:50:37,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 500 flow. Second operand has 7 states, 7 states have (on average 120.14285714285714) internal successors, (841), 7 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:37,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:50:37,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:38,081 INFO L130 PetriNetUnfolder]: 501/873 cut-off events. [2023-08-30 08:50:38,081 INFO L131 PetriNetUnfolder]: For 939/939 co-relation queries the response was YES. [2023-08-30 08:50:38,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2803 conditions, 873 events. 501/873 cut-off events. For 939/939 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3822 event pairs, 301 based on Foata normal form. 2/801 useless extension candidates. Maximal degree in co-relation 2382. Up to 798 conditions per place. [2023-08-30 08:50:38,085 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 46 selfloop transitions, 31 changer transitions 0/79 dead transitions. [2023-08-30 08:50:38,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 79 transitions, 739 flow [2023-08-30 08:50:38,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 760 transitions. [2023-08-30 08:50:38,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.472636815920398 [2023-08-30 08:50:38,087 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 760 transitions. [2023-08-30 08:50:38,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 760 transitions. [2023-08-30 08:50:38,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:38,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 760 transitions. [2023-08-30 08:50:38,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,091 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,091 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 500 flow. Second operand 6 states and 760 transitions. [2023-08-30 08:50:38,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 79 transitions, 739 flow [2023-08-30 08:50:38,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 79 transitions, 707 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:38,094 INFO L231 Difference]: Finished difference. Result has 69 places, 74 transitions, 601 flow [2023-08-30 08:50:38,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=69, PETRI_TRANSITIONS=74} [2023-08-30 08:50:38,095 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 31 predicate places. [2023-08-30 08:50:38,095 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 601 flow [2023-08-30 08:50:38,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.14285714285714) internal successors, (841), 7 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:38,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:38,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 08:50:38,096 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:38,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:38,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2107114757, now seen corresponding path program 1 times [2023-08-30 08:50:38,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:38,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610453783] [2023-08-30 08:50:38,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:38,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:38,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:38,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610453783] [2023-08-30 08:50:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610453783] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615047051] [2023-08-30 08:50:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:38,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:38,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:38,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 601 flow. Second operand has 8 states, 8 states have (on average 121.125) internal successors, (969), 8 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:38,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:38,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:38,866 INFO L130 PetriNetUnfolder]: 525/912 cut-off events. [2023-08-30 08:50:38,867 INFO L131 PetriNetUnfolder]: For 1301/1301 co-relation queries the response was YES. [2023-08-30 08:50:38,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3121 conditions, 912 events. 525/912 cut-off events. For 1301/1301 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4159 event pairs, 182 based on Foata normal form. 4/840 useless extension candidates. Maximal degree in co-relation 2679. Up to 829 conditions per place. [2023-08-30 08:50:38,873 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 60 selfloop transitions, 35 changer transitions 0/97 dead transitions. [2023-08-30 08:50:38,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 97 transitions, 929 flow [2023-08-30 08:50:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1262 transitions. [2023-08-30 08:50:38,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4708955223880597 [2023-08-30 08:50:38,877 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1262 transitions. [2023-08-30 08:50:38,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1262 transitions. [2023-08-30 08:50:38,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:38,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1262 transitions. [2023-08-30 08:50:38,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.2) internal successors, (1262), 10 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:50:38,885 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:50:38,885 INFO L175 Difference]: Start difference. First operand has 69 places, 74 transitions, 601 flow. Second operand 10 states and 1262 transitions. [2023-08-30 08:50:38,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 97 transitions, 929 flow [2023-08-30 08:50:38,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 97 transitions, 886 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:38,891 INFO L231 Difference]: Finished difference. Result has 79 places, 88 transitions, 782 flow [2023-08-30 08:50:38,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=782, PETRI_PLACES=79, PETRI_TRANSITIONS=88} [2023-08-30 08:50:38,892 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2023-08-30 08:50:38,892 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 88 transitions, 782 flow [2023-08-30 08:50:38,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.125) internal successors, (969), 8 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:38,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:38,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 08:50:38,893 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:38,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:38,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2107114756, now seen corresponding path program 1 times [2023-08-30 08:50:38,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:38,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525916461] [2023-08-30 08:50:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:38,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:39,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:39,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525916461] [2023-08-30 08:50:39,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525916461] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:39,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:39,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:39,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556751425] [2023-08-30 08:50:39,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:39,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:39,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:39,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:39,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:39,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:39,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 88 transitions, 782 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:39,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:39,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:40,034 INFO L130 PetriNetUnfolder]: 549/936 cut-off events. [2023-08-30 08:50:40,035 INFO L131 PetriNetUnfolder]: For 1559/1559 co-relation queries the response was YES. [2023-08-30 08:50:40,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3417 conditions, 936 events. 549/936 cut-off events. For 1559/1559 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4139 event pairs, 226 based on Foata normal form. 6/866 useless extension candidates. Maximal degree in co-relation 2776. Up to 854 conditions per place. [2023-08-30 08:50:40,039 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 65 selfloop transitions, 46 changer transitions 0/113 dead transitions. [2023-08-30 08:50:40,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 113 transitions, 1235 flow [2023-08-30 08:50:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1264 transitions. [2023-08-30 08:50:40,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4716417910447761 [2023-08-30 08:50:40,042 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1264 transitions. [2023-08-30 08:50:40,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1264 transitions. [2023-08-30 08:50:40,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:40,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1264 transitions. [2023-08-30 08:50:40,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.4) internal successors, (1264), 10 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:50:40,048 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:50:40,048 INFO L175 Difference]: Start difference. First operand has 79 places, 88 transitions, 782 flow. Second operand 10 states and 1264 transitions. [2023-08-30 08:50:40,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 113 transitions, 1235 flow [2023-08-30 08:50:40,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 113 transitions, 1184 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:40,057 INFO L231 Difference]: Finished difference. Result has 89 places, 105 transitions, 1071 flow [2023-08-30 08:50:40,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1071, PETRI_PLACES=89, PETRI_TRANSITIONS=105} [2023-08-30 08:50:40,059 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 51 predicate places. [2023-08-30 08:50:40,059 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 1071 flow [2023-08-30 08:50:40,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:40,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:40,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 08:50:40,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:40,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:40,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2107104960, now seen corresponding path program 1 times [2023-08-30 08:50:40,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:40,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045821787] [2023-08-30 08:50:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:40,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045821787] [2023-08-30 08:50:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045821787] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:40,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:40,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:40,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733062248] [2023-08-30 08:50:40,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:40,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:40,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:40,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:40,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:40,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 08:50:40,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 105 transitions, 1071 flow. Second operand has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:40,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 08:50:40,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:40,758 INFO L130 PetriNetUnfolder]: 1033/1862 cut-off events. [2023-08-30 08:50:40,758 INFO L131 PetriNetUnfolder]: For 3773/3773 co-relation queries the response was YES. [2023-08-30 08:50:40,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6685 conditions, 1862 events. 1033/1862 cut-off events. For 3773/3773 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10574 event pairs, 359 based on Foata normal form. 24/1735 useless extension candidates. Maximal degree in co-relation 5716. Up to 769 conditions per place. [2023-08-30 08:50:40,766 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 138 selfloop transitions, 34 changer transitions 0/174 dead transitions. [2023-08-30 08:50:40,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 174 transitions, 1854 flow [2023-08-30 08:50:40,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:40,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2023-08-30 08:50:40,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47867803837953093 [2023-08-30 08:50:40,768 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2023-08-30 08:50:40,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2023-08-30 08:50:40,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:40,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2023-08-30 08:50:40,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,772 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,772 INFO L175 Difference]: Start difference. First operand has 89 places, 105 transitions, 1071 flow. Second operand 7 states and 898 transitions. [2023-08-30 08:50:40,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 174 transitions, 1854 flow [2023-08-30 08:50:40,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 174 transitions, 1789 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:40,781 INFO L231 Difference]: Finished difference. Result has 94 places, 119 transitions, 1258 flow [2023-08-30 08:50:40,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1258, PETRI_PLACES=94, PETRI_TRANSITIONS=119} [2023-08-30 08:50:40,782 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 56 predicate places. [2023-08-30 08:50:40,782 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 119 transitions, 1258 flow [2023-08-30 08:50:40,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:40,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:40,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 08:50:40,783 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:40,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:40,783 INFO L85 PathProgramCache]: Analyzing trace with hash -927391157, now seen corresponding path program 2 times [2023-08-30 08:50:40,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:40,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534261245] [2023-08-30 08:50:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:40,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:41,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:41,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534261245] [2023-08-30 08:50:41,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534261245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:41,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363594405] [2023-08-30 08:50:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:41,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:41,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:41,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:41,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 119 transitions, 1258 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:41,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:41,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:41,857 INFO L130 PetriNetUnfolder]: 1045/1867 cut-off events. [2023-08-30 08:50:41,858 INFO L131 PetriNetUnfolder]: For 5839/5839 co-relation queries the response was YES. [2023-08-30 08:50:41,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7721 conditions, 1867 events. 1045/1867 cut-off events. For 5839/5839 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10470 event pairs, 498 based on Foata normal form. 2/1718 useless extension candidates. Maximal degree in co-relation 7611. Up to 1728 conditions per place. [2023-08-30 08:50:41,871 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 75 selfloop transitions, 55 changer transitions 0/132 dead transitions. [2023-08-30 08:50:41,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 132 transitions, 1612 flow [2023-08-30 08:50:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1507 transitions. [2023-08-30 08:50:41,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4685945273631841 [2023-08-30 08:50:41,877 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1507 transitions. [2023-08-30 08:50:41,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1507 transitions. [2023-08-30 08:50:41,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:41,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1507 transitions. [2023-08-30 08:50:41,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,887 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,887 INFO L175 Difference]: Start difference. First operand has 94 places, 119 transitions, 1258 flow. Second operand 12 states and 1507 transitions. [2023-08-30 08:50:41,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 132 transitions, 1612 flow [2023-08-30 08:50:41,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 132 transitions, 1591 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:41,912 INFO L231 Difference]: Finished difference. Result has 103 places, 125 transitions, 1444 flow [2023-08-30 08:50:41,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1444, PETRI_PLACES=103, PETRI_TRANSITIONS=125} [2023-08-30 08:50:41,914 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 65 predicate places. [2023-08-30 08:50:41,914 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 125 transitions, 1444 flow [2023-08-30 08:50:41,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:41,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:41,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 08:50:41,915 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:41,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash -925949657, now seen corresponding path program 3 times [2023-08-30 08:50:41,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:41,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831399874] [2023-08-30 08:50:41,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:41,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:42,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:42,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831399874] [2023-08-30 08:50:42,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831399874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:42,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:42,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:42,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188184352] [2023-08-30 08:50:42,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:42,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:42,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 125 transitions, 1444 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:42,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:42,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:42,833 INFO L130 PetriNetUnfolder]: 1037/1857 cut-off events. [2023-08-30 08:50:42,833 INFO L131 PetriNetUnfolder]: For 5969/5969 co-relation queries the response was YES. [2023-08-30 08:50:42,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7858 conditions, 1857 events. 1037/1857 cut-off events. For 5969/5969 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 10479 event pairs, 510 based on Foata normal form. 2/1710 useless extension candidates. Maximal degree in co-relation 7743. Up to 1714 conditions per place. [2023-08-30 08:50:42,847 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 82 selfloop transitions, 48 changer transitions 0/132 dead transitions. [2023-08-30 08:50:42,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 1735 flow [2023-08-30 08:50:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:42,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1016 transitions. [2023-08-30 08:50:42,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47388059701492535 [2023-08-30 08:50:42,849 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1016 transitions. [2023-08-30 08:50:42,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1016 transitions. [2023-08-30 08:50:42,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:42,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1016 transitions. [2023-08-30 08:50:42,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.0) internal successors, (1016), 8 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,854 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,854 INFO L175 Difference]: Start difference. First operand has 103 places, 125 transitions, 1444 flow. Second operand 8 states and 1016 transitions. [2023-08-30 08:50:42,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 1735 flow [2023-08-30 08:50:42,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 132 transitions, 1642 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-08-30 08:50:42,882 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 1467 flow [2023-08-30 08:50:42,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1352, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1467, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2023-08-30 08:50:42,882 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 64 predicate places. [2023-08-30 08:50:42,882 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 1467 flow [2023-08-30 08:50:42,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:42,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:42,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 08:50:42,884 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:42,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:42,884 INFO L85 PathProgramCache]: Analyzing trace with hash -968205067, now seen corresponding path program 1 times [2023-08-30 08:50:42,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:42,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437951462] [2023-08-30 08:50:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:42,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:43,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:43,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437951462] [2023-08-30 08:50:43,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437951462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:43,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:43,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509604867] [2023-08-30 08:50:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:43,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:43,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:43,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:43,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 08:50:43,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 1467 flow. Second operand has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:43,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 08:50:43,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:43,782 INFO L130 PetriNetUnfolder]: 2075/3817 cut-off events. [2023-08-30 08:50:43,782 INFO L131 PetriNetUnfolder]: For 12015/12015 co-relation queries the response was YES. [2023-08-30 08:50:43,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15355 conditions, 3817 events. 2075/3817 cut-off events. For 12015/12015 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 26272 event pairs, 624 based on Foata normal form. 69/3591 useless extension candidates. Maximal degree in co-relation 15245. Up to 1513 conditions per place. [2023-08-30 08:50:43,807 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 144 selfloop transitions, 45 changer transitions 0/191 dead transitions. [2023-08-30 08:50:43,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 191 transitions, 2285 flow [2023-08-30 08:50:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:43,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 904 transitions. [2023-08-30 08:50:43,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48187633262260127 [2023-08-30 08:50:43,810 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 904 transitions. [2023-08-30 08:50:43,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 904 transitions. [2023-08-30 08:50:43,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:43,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 904 transitions. [2023-08-30 08:50:43,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,825 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,825 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 1467 flow. Second operand 7 states and 904 transitions. [2023-08-30 08:50:43,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 191 transitions, 2285 flow [2023-08-30 08:50:43,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 191 transitions, 2212 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 08:50:43,854 INFO L231 Difference]: Finished difference. Result has 106 places, 139 transitions, 1690 flow [2023-08-30 08:50:43,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1690, PETRI_PLACES=106, PETRI_TRANSITIONS=139} [2023-08-30 08:50:43,855 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 68 predicate places. [2023-08-30 08:50:43,855 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 139 transitions, 1690 flow [2023-08-30 08:50:43,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:43,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:43,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 08:50:43,856 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:43,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -974224957, now seen corresponding path program 2 times [2023-08-30 08:50:43,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:43,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169118836] [2023-08-30 08:50:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:44,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:44,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169118836] [2023-08-30 08:50:44,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169118836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:44,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:44,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545048211] [2023-08-30 08:50:44,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:44,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:44,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:44,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:44,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:50:44,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 139 transitions, 1690 flow. Second operand has 8 states, 8 states have (on average 118.125) internal successors, (945), 8 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:44,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:50:44,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:45,025 INFO L130 PetriNetUnfolder]: 2005/3715 cut-off events. [2023-08-30 08:50:45,025 INFO L131 PetriNetUnfolder]: For 17260/17260 co-relation queries the response was YES. [2023-08-30 08:50:45,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16738 conditions, 3715 events. 2005/3715 cut-off events. For 17260/17260 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 25647 event pairs, 997 based on Foata normal form. 21/3462 useless extension candidates. Maximal degree in co-relation 16627. Up to 3272 conditions per place. [2023-08-30 08:50:45,042 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 116 selfloop transitions, 48 changer transitions 0/166 dead transitions. [2023-08-30 08:50:45,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 166 transitions, 2246 flow [2023-08-30 08:50:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 994 transitions. [2023-08-30 08:50:45,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46361940298507465 [2023-08-30 08:50:45,044 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 994 transitions. [2023-08-30 08:50:45,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 994 transitions. [2023-08-30 08:50:45,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:45,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 994 transitions. [2023-08-30 08:50:45,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,048 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,048 INFO L175 Difference]: Start difference. First operand has 106 places, 139 transitions, 1690 flow. Second operand 8 states and 994 transitions. [2023-08-30 08:50:45,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 166 transitions, 2246 flow [2023-08-30 08:50:45,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 166 transitions, 2150 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:45,081 INFO L231 Difference]: Finished difference. Result has 112 places, 151 transitions, 1896 flow [2023-08-30 08:50:45,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1622, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1896, PETRI_PLACES=112, PETRI_TRANSITIONS=151} [2023-08-30 08:50:45,081 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 74 predicate places. [2023-08-30 08:50:45,082 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 151 transitions, 1896 flow [2023-08-30 08:50:45,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 118.125) internal successors, (945), 8 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:45,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:45,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 08:50:45,082 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:45,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:45,083 INFO L85 PathProgramCache]: Analyzing trace with hash -981065355, now seen corresponding path program 4 times [2023-08-30 08:50:45,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:45,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777233776] [2023-08-30 08:50:45,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:45,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:45,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:45,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777233776] [2023-08-30 08:50:45,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777233776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:45,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:45,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250473453] [2023-08-30 08:50:45,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:45,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:45,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:45,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:45,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:45,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:45,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 151 transitions, 1896 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:45,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:45,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:46,164 INFO L130 PetriNetUnfolder]: 2031/3736 cut-off events. [2023-08-30 08:50:46,165 INFO L131 PetriNetUnfolder]: For 18208/18208 co-relation queries the response was YES. [2023-08-30 08:50:46,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17562 conditions, 3736 events. 2031/3736 cut-off events. For 18208/18208 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 25591 event pairs, 1150 based on Foata normal form. 4/3464 useless extension candidates. Maximal degree in co-relation 12839. Up to 3515 conditions per place. [2023-08-30 08:50:46,181 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 132 selfloop transitions, 35 changer transitions 0/169 dead transitions. [2023-08-30 08:50:46,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 169 transitions, 2457 flow [2023-08-30 08:50:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:46,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:46,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 889 transitions. [2023-08-30 08:50:46,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47388059701492535 [2023-08-30 08:50:46,184 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 889 transitions. [2023-08-30 08:50:46,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 889 transitions. [2023-08-30 08:50:46,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:46,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 889 transitions. [2023-08-30 08:50:46,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,188 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,188 INFO L175 Difference]: Start difference. First operand has 112 places, 151 transitions, 1896 flow. Second operand 7 states and 889 transitions. [2023-08-30 08:50:46,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 169 transitions, 2457 flow [2023-08-30 08:50:46,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 169 transitions, 2379 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:46,221 INFO L231 Difference]: Finished difference. Result has 116 places, 162 transitions, 2104 flow [2023-08-30 08:50:46,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1824, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2104, PETRI_PLACES=116, PETRI_TRANSITIONS=162} [2023-08-30 08:50:46,221 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 78 predicate places. [2023-08-30 08:50:46,221 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 162 transitions, 2104 flow [2023-08-30 08:50:46,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:46,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:46,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 08:50:46,222 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:46,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash -981065354, now seen corresponding path program 2 times [2023-08-30 08:50:46,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:46,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170482924] [2023-08-30 08:50:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:46,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170482924] [2023-08-30 08:50:46,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170482924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:46,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:46,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:46,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895215581] [2023-08-30 08:50:46,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:46,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:46,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:46,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:46,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 162 transitions, 2104 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:46,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:46,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:47,514 INFO L130 PetriNetUnfolder]: 2050/3764 cut-off events. [2023-08-30 08:50:47,514 INFO L131 PetriNetUnfolder]: For 20419/20419 co-relation queries the response was YES. [2023-08-30 08:50:47,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18341 conditions, 3764 events. 2050/3764 cut-off events. For 20419/20419 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 25608 event pairs, 1163 based on Foata normal form. 2/3492 useless extension candidates. Maximal degree in co-relation 18205. Up to 3525 conditions per place. [2023-08-30 08:50:47,531 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 122 selfloop transitions, 71 changer transitions 0/195 dead transitions. [2023-08-30 08:50:47,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 195 transitions, 2956 flow [2023-08-30 08:50:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:50:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:50:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1752 transitions. [2023-08-30 08:50:47,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669509594882729 [2023-08-30 08:50:47,534 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1752 transitions. [2023-08-30 08:50:47,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1752 transitions. [2023-08-30 08:50:47,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:47,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1752 transitions. [2023-08-30 08:50:47,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 125.14285714285714) internal successors, (1752), 14 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:50:47,541 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:50:47,541 INFO L175 Difference]: Start difference. First operand has 116 places, 162 transitions, 2104 flow. Second operand 14 states and 1752 transitions. [2023-08-30 08:50:47,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 195 transitions, 2956 flow [2023-08-30 08:50:47,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 195 transitions, 2881 flow, removed 10 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:47,581 INFO L231 Difference]: Finished difference. Result has 127 places, 186 transitions, 2646 flow [2023-08-30 08:50:47,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2040, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2646, PETRI_PLACES=127, PETRI_TRANSITIONS=186} [2023-08-30 08:50:47,582 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2023-08-30 08:50:47,582 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 186 transitions, 2646 flow [2023-08-30 08:50:47,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:47,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:47,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 08:50:47,582 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:47,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:47,583 INFO L85 PathProgramCache]: Analyzing trace with hash -981613124, now seen corresponding path program 3 times [2023-08-30 08:50:47,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:47,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501423912] [2023-08-30 08:50:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:47,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:47,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501423912] [2023-08-30 08:50:47,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501423912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:47,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:47,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:47,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730809565] [2023-08-30 08:50:47,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:47,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:47,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:47,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:48,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:48,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 186 transitions, 2646 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:48,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:48,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:48,765 INFO L130 PetriNetUnfolder]: 2034/3734 cut-off events. [2023-08-30 08:50:48,766 INFO L131 PetriNetUnfolder]: For 20681/20681 co-relation queries the response was YES. [2023-08-30 08:50:48,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18521 conditions, 3734 events. 2034/3734 cut-off events. For 20681/20681 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 25357 event pairs, 1182 based on Foata normal form. 4/3470 useless extension candidates. Maximal degree in co-relation 18380. Up to 3504 conditions per place. [2023-08-30 08:50:48,787 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 138 selfloop transitions, 64 changer transitions 0/204 dead transitions. [2023-08-30 08:50:48,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 204 transitions, 3288 flow [2023-08-30 08:50:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1510 transitions. [2023-08-30 08:50:48,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695273631840796 [2023-08-30 08:50:48,789 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1510 transitions. [2023-08-30 08:50:48,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1510 transitions. [2023-08-30 08:50:48,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:48,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1510 transitions. [2023-08-30 08:50:48,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 125.83333333333333) internal successors, (1510), 12 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,841 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,841 INFO L175 Difference]: Start difference. First operand has 127 places, 186 transitions, 2646 flow. Second operand 12 states and 1510 transitions. [2023-08-30 08:50:48,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 204 transitions, 3288 flow [2023-08-30 08:50:48,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 204 transitions, 3149 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:48,884 INFO L231 Difference]: Finished difference. Result has 134 places, 194 transitions, 2809 flow [2023-08-30 08:50:48,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2522, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2809, PETRI_PLACES=134, PETRI_TRANSITIONS=194} [2023-08-30 08:50:48,885 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 96 predicate places. [2023-08-30 08:50:48,886 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 194 transitions, 2809 flow [2023-08-30 08:50:48,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:48,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:48,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 08:50:48,886 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:48,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:48,887 INFO L85 PathProgramCache]: Analyzing trace with hash -974222848, now seen corresponding path program 2 times [2023-08-30 08:50:48,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:48,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64126544] [2023-08-30 08:50:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:48,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:49,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64126544] [2023-08-30 08:50:49,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64126544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:49,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:49,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:49,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904742825] [2023-08-30 08:50:49,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:49,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:49,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:49,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:50:49,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 194 transitions, 2809 flow. Second operand has 7 states, 7 states have (on average 118.28571428571429) internal successors, (828), 7 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:49,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:50:49,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:49,878 INFO L130 PetriNetUnfolder]: 2688/4934 cut-off events. [2023-08-30 08:50:49,878 INFO L131 PetriNetUnfolder]: For 30573/30573 co-relation queries the response was YES. [2023-08-30 08:50:49,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24649 conditions, 4934 events. 2688/4934 cut-off events. For 30573/30573 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 35744 event pairs, 512 based on Foata normal form. 61/4656 useless extension candidates. Maximal degree in co-relation 24356. Up to 2648 conditions per place. [2023-08-30 08:50:49,908 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 159 selfloop transitions, 106 changer transitions 6/273 dead transitions. [2023-08-30 08:50:49,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 273 transitions, 4133 flow [2023-08-30 08:50:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1019 transitions. [2023-08-30 08:50:49,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47527985074626866 [2023-08-30 08:50:49,910 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1019 transitions. [2023-08-30 08:50:49,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1019 transitions. [2023-08-30 08:50:49,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:49,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1019 transitions. [2023-08-30 08:50:49,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.375) internal successors, (1019), 8 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,913 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,914 INFO L175 Difference]: Start difference. First operand has 134 places, 194 transitions, 2809 flow. Second operand 8 states and 1019 transitions. [2023-08-30 08:50:49,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 273 transitions, 4133 flow [2023-08-30 08:50:49,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 273 transitions, 4019 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-30 08:50:49,979 INFO L231 Difference]: Finished difference. Result has 138 places, 231 transitions, 3559 flow [2023-08-30 08:50:49,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2695, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3559, PETRI_PLACES=138, PETRI_TRANSITIONS=231} [2023-08-30 08:50:49,980 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 100 predicate places. [2023-08-30 08:50:49,980 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 231 transitions, 3559 flow [2023-08-30 08:50:49,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 118.28571428571429) internal successors, (828), 7 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:49,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:49,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 08:50:49,981 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:49,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash -968283868, now seen corresponding path program 3 times [2023-08-30 08:50:49,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:49,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754941507] [2023-08-30 08:50:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:49,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:50,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:50,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754941507] [2023-08-30 08:50:50,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754941507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:50,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:50,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:50,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389606798] [2023-08-30 08:50:50,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:50,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:50,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:50,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:50,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:50,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 08:50:50,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 231 transitions, 3559 flow. Second operand has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:50,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 08:50:50,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:50,993 INFO L130 PetriNetUnfolder]: 2630/4890 cut-off events. [2023-08-30 08:50:50,994 INFO L131 PetriNetUnfolder]: For 46029/46029 co-relation queries the response was YES. [2023-08-30 08:50:51,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28107 conditions, 4890 events. 2630/4890 cut-off events. For 46029/46029 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 35907 event pairs, 761 based on Foata normal form. 93/4684 useless extension candidates. Maximal degree in co-relation 27928. Up to 2108 conditions per place. [2023-08-30 08:50:51,021 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 238 selfloop transitions, 77 changer transitions 6/323 dead transitions. [2023-08-30 08:50:51,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 323 transitions, 5298 flow [2023-08-30 08:50:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:51,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2023-08-30 08:50:51,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47921108742004265 [2023-08-30 08:50:51,023 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2023-08-30 08:50:51,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2023-08-30 08:50:51,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:51,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2023-08-30 08:50:51,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,026 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,026 INFO L175 Difference]: Start difference. First operand has 138 places, 231 transitions, 3559 flow. Second operand 7 states and 899 transitions. [2023-08-30 08:50:51,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 323 transitions, 5298 flow [2023-08-30 08:50:51,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 323 transitions, 5104 flow, removed 78 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:51,159 INFO L231 Difference]: Finished difference. Result has 144 places, 248 transitions, 3961 flow [2023-08-30 08:50:51,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3418, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3961, PETRI_PLACES=144, PETRI_TRANSITIONS=248} [2023-08-30 08:50:51,159 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 106 predicate places. [2023-08-30 08:50:51,159 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 248 transitions, 3961 flow [2023-08-30 08:50:51,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:51,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:51,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 08:50:51,160 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:51,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:51,160 INFO L85 PathProgramCache]: Analyzing trace with hash -980171625, now seen corresponding path program 5 times [2023-08-30 08:50:51,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:51,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156260092] [2023-08-30 08:50:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:51,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:51,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:51,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156260092] [2023-08-30 08:50:51,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156260092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:51,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:51,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:51,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664906337] [2023-08-30 08:50:51,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:51,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:51,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:51,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:51,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:51,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:50:51,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 248 transitions, 3961 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:51,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:50:51,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:52,625 INFO L130 PetriNetUnfolder]: 2524/4704 cut-off events. [2023-08-30 08:50:52,625 INFO L131 PetriNetUnfolder]: For 49035/49035 co-relation queries the response was YES. [2023-08-30 08:50:52,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28391 conditions, 4704 events. 2524/4704 cut-off events. For 49035/49035 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 34527 event pairs, 1356 based on Foata normal form. 2/4408 useless extension candidates. Maximal degree in co-relation 28208. Up to 4421 conditions per place. [2023-08-30 08:50:52,646 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 195 selfloop transitions, 57 changer transitions 0/254 dead transitions. [2023-08-30 08:50:52,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 254 transitions, 4491 flow [2023-08-30 08:50:52,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:50:52,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:50:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1627 transitions. [2023-08-30 08:50:52,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46699196326062 [2023-08-30 08:50:52,650 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1627 transitions. [2023-08-30 08:50:52,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1627 transitions. [2023-08-30 08:50:52,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:52,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1627 transitions. [2023-08-30 08:50:52,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 125.15384615384616) internal successors, (1627), 13 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,655 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,655 INFO L175 Difference]: Start difference. First operand has 144 places, 248 transitions, 3961 flow. Second operand 13 states and 1627 transitions. [2023-08-30 08:50:52,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 254 transitions, 4491 flow [2023-08-30 08:50:52,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 254 transitions, 4362 flow, removed 42 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:52,773 INFO L231 Difference]: Finished difference. Result has 154 places, 249 transitions, 3987 flow [2023-08-30 08:50:52,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3832, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3987, PETRI_PLACES=154, PETRI_TRANSITIONS=249} [2023-08-30 08:50:52,774 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 116 predicate places. [2023-08-30 08:50:52,774 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 249 transitions, 3987 flow [2023-08-30 08:50:52,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:52,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:52,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 08:50:52,774 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:52,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:52,775 INFO L85 PathProgramCache]: Analyzing trace with hash -896044720, now seen corresponding path program 1 times [2023-08-30 08:50:52,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:52,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001530590] [2023-08-30 08:50:52,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:52,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:53,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:53,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001530590] [2023-08-30 08:50:53,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001530590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:53,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:53,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:53,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729429143] [2023-08-30 08:50:53,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:53,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:53,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:53,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:53,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:53,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:50:53,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 249 transitions, 3987 flow. Second operand has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:53,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:50:53,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:54,359 INFO L130 PetriNetUnfolder]: 2582/4793 cut-off events. [2023-08-30 08:50:54,359 INFO L131 PetriNetUnfolder]: For 47380/47380 co-relation queries the response was YES. [2023-08-30 08:50:54,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28693 conditions, 4793 events. 2582/4793 cut-off events. For 47380/47380 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 34906 event pairs, 1094 based on Foata normal form. 8/4499 useless extension candidates. Maximal degree in co-relation 26998. Up to 4352 conditions per place. [2023-08-30 08:50:54,385 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 182 selfloop transitions, 99 changer transitions 0/283 dead transitions. [2023-08-30 08:50:54,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 283 transitions, 4976 flow [2023-08-30 08:50:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1241 transitions. [2023-08-30 08:50:54,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46305970149253733 [2023-08-30 08:50:54,387 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1241 transitions. [2023-08-30 08:50:54,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1241 transitions. [2023-08-30 08:50:54,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:54,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1241 transitions. [2023-08-30 08:50:54,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.1) internal successors, (1241), 10 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:54,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:50:54,391 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:50:54,392 INFO L175 Difference]: Start difference. First operand has 154 places, 249 transitions, 3987 flow. Second operand 10 states and 1241 transitions. [2023-08-30 08:50:54,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 283 transitions, 4976 flow [2023-08-30 08:50:54,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 283 transitions, 4870 flow, removed 3 selfloop flow, removed 10 redundant places. [2023-08-30 08:50:54,515 INFO L231 Difference]: Finished difference. Result has 157 places, 273 transitions, 4518 flow [2023-08-30 08:50:54,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3881, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4518, PETRI_PLACES=157, PETRI_TRANSITIONS=273} [2023-08-30 08:50:54,516 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 119 predicate places. [2023-08-30 08:50:54,516 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 273 transitions, 4518 flow [2023-08-30 08:50:54,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:54,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:54,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:54,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 08:50:54,517 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:54,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash -895547171, now seen corresponding path program 1 times [2023-08-30 08:50:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854642681] [2023-08-30 08:50:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:54,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:54,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854642681] [2023-08-30 08:50:54,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854642681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:54,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:54,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:54,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734800567] [2023-08-30 08:50:54,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:54,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:54,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:54,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:54,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:54,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 08:50:54,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 273 transitions, 4518 flow. Second operand has 7 states, 7 states have (on average 130.42857142857142) internal successors, (913), 7 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:54,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:54,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 08:50:54,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:55,370 INFO L130 PetriNetUnfolder]: 2412/4662 cut-off events. [2023-08-30 08:50:55,370 INFO L131 PetriNetUnfolder]: For 47923/47962 co-relation queries the response was YES. [2023-08-30 08:50:55,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28211 conditions, 4662 events. 2412/4662 cut-off events. For 47923/47962 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 35975 event pairs, 870 based on Foata normal form. 45/4363 useless extension candidates. Maximal degree in co-relation 27609. Up to 2954 conditions per place. [2023-08-30 08:50:55,398 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 209 selfloop transitions, 18 changer transitions 13/267 dead transitions. [2023-08-30 08:50:55,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 267 transitions, 4512 flow [2023-08-30 08:50:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2023-08-30 08:50:55,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5118159203980099 [2023-08-30 08:50:55,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2023-08-30 08:50:55,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2023-08-30 08:50:55,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:55,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2023-08-30 08:50:55,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,401 INFO L175 Difference]: Start difference. First operand has 157 places, 273 transitions, 4518 flow. Second operand 6 states and 823 transitions. [2023-08-30 08:50:55,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 267 transitions, 4512 flow [2023-08-30 08:50:55,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 267 transitions, 4246 flow, removed 17 selfloop flow, removed 16 redundant places. [2023-08-30 08:50:55,565 INFO L231 Difference]: Finished difference. Result has 141 places, 216 transitions, 3160 flow [2023-08-30 08:50:55,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3082, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3160, PETRI_PLACES=141, PETRI_TRANSITIONS=216} [2023-08-30 08:50:55,565 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 103 predicate places. [2023-08-30 08:50:55,566 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 216 transitions, 3160 flow [2023-08-30 08:50:55,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.42857142857142) internal successors, (913), 7 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:55,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:55,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 08:50:55,566 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:55,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:55,567 INFO L85 PathProgramCache]: Analyzing trace with hash -365232496, now seen corresponding path program 2 times [2023-08-30 08:50:55,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:55,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845135589] [2023-08-30 08:50:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:55,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:56,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:56,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845135589] [2023-08-30 08:50:56,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845135589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:56,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:56,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:56,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6454617] [2023-08-30 08:50:56,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:56,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:56,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:56,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:56,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:50:56,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 216 transitions, 3160 flow. Second operand has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:56,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:50:56,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:57,388 INFO L130 PetriNetUnfolder]: 2538/4868 cut-off events. [2023-08-30 08:50:57,388 INFO L131 PetriNetUnfolder]: For 48117/48117 co-relation queries the response was YES. [2023-08-30 08:50:57,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29628 conditions, 4868 events. 2538/4868 cut-off events. For 48117/48117 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 37046 event pairs, 1252 based on Foata normal form. 12/4576 useless extension candidates. Maximal degree in co-relation 27548. Up to 4451 conditions per place. [2023-08-30 08:50:57,415 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 164 selfloop transitions, 85 changer transitions 0/251 dead transitions. [2023-08-30 08:50:57,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 251 transitions, 4127 flow [2023-08-30 08:50:57,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1475 transitions. [2023-08-30 08:50:57,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45864427860696516 [2023-08-30 08:50:57,417 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1475 transitions. [2023-08-30 08:50:57,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1475 transitions. [2023-08-30 08:50:57,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:57,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1475 transitions. [2023-08-30 08:50:57,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.91666666666667) internal successors, (1475), 12 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,421 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,421 INFO L175 Difference]: Start difference. First operand has 141 places, 216 transitions, 3160 flow. Second operand 12 states and 1475 transitions. [2023-08-30 08:50:57,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 251 transitions, 4127 flow [2023-08-30 08:50:57,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 251 transitions, 4053 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:57,518 INFO L231 Difference]: Finished difference. Result has 150 places, 241 transitions, 3737 flow [2023-08-30 08:50:57,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3103, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3737, PETRI_PLACES=150, PETRI_TRANSITIONS=241} [2023-08-30 08:50:57,518 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 112 predicate places. [2023-08-30 08:50:57,519 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 241 transitions, 3737 flow [2023-08-30 08:50:57,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:57,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:57,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 08:50:57,519 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:57,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash -349318337, now seen corresponding path program 2 times [2023-08-30 08:50:57,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:57,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175587876] [2023-08-30 08:50:57,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:57,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:57,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:57,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175587876] [2023-08-30 08:50:57,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175587876] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:57,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:57,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:57,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786749575] [2023-08-30 08:50:57,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:57,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:57,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:57,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:57,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:58,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:50:58,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 241 transitions, 3737 flow. Second operand has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:58,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:50:58,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:59,056 INFO L130 PetriNetUnfolder]: 2490/4786 cut-off events. [2023-08-30 08:50:59,056 INFO L131 PetriNetUnfolder]: For 47548/47548 co-relation queries the response was YES. [2023-08-30 08:50:59,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28775 conditions, 4786 events. 2490/4786 cut-off events. For 47548/47548 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 36354 event pairs, 1076 based on Foata normal form. 12/4510 useless extension candidates. Maximal degree in co-relation 28554. Up to 4397 conditions per place. [2023-08-30 08:50:59,083 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 178 selfloop transitions, 80 changer transitions 0/260 dead transitions. [2023-08-30 08:50:59,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 260 transitions, 4525 flow [2023-08-30 08:50:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1113 transitions. [2023-08-30 08:50:59,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4614427860696517 [2023-08-30 08:50:59,085 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1113 transitions. [2023-08-30 08:50:59,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1113 transitions. [2023-08-30 08:50:59,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:59,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1113 transitions. [2023-08-30 08:50:59,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.66666666666667) internal successors, (1113), 9 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,088 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,088 INFO L175 Difference]: Start difference. First operand has 150 places, 241 transitions, 3737 flow. Second operand 9 states and 1113 transitions. [2023-08-30 08:50:59,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 260 transitions, 4525 flow [2023-08-30 08:50:59,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 260 transitions, 4350 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-30 08:50:59,219 INFO L231 Difference]: Finished difference. Result has 153 places, 255 transitions, 4044 flow [2023-08-30 08:50:59,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3567, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4044, PETRI_PLACES=153, PETRI_TRANSITIONS=255} [2023-08-30 08:50:59,220 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 115 predicate places. [2023-08-30 08:50:59,220 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 255 transitions, 4044 flow [2023-08-30 08:50:59,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:59,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:59,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 08:50:59,221 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:59,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash -348157696, now seen corresponding path program 3 times [2023-08-30 08:50:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:59,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453576120] [2023-08-30 08:50:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:59,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:59,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453576120] [2023-08-30 08:50:59,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453576120] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:59,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:59,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:59,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480445554] [2023-08-30 08:50:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:59,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:59,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:59,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:59,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:00,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:00,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 255 transitions, 4044 flow. Second operand has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:00,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:00,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:00,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:00,985 INFO L130 PetriNetUnfolder]: 2426/4678 cut-off events. [2023-08-30 08:51:00,985 INFO L131 PetriNetUnfolder]: For 49123/49123 co-relation queries the response was YES. [2023-08-30 08:51:01,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28655 conditions, 4678 events. 2426/4678 cut-off events. For 49123/49123 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 35460 event pairs, 979 based on Foata normal form. 6/4410 useless extension candidates. Maximal degree in co-relation 28434. Up to 4278 conditions per place. [2023-08-30 08:51:01,011 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 155 selfloop transitions, 112 changer transitions 0/269 dead transitions. [2023-08-30 08:51:01,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 269 transitions, 4715 flow [2023-08-30 08:51:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:01,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:01,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1719 transitions. [2023-08-30 08:51:01,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4581556503198294 [2023-08-30 08:51:01,014 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1719 transitions. [2023-08-30 08:51:01,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1719 transitions. [2023-08-30 08:51:01,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:01,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1719 transitions. [2023-08-30 08:51:01,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 122.78571428571429) internal successors, (1719), 14 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:01,019 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:01,019 INFO L175 Difference]: Start difference. First operand has 153 places, 255 transitions, 4044 flow. Second operand 14 states and 1719 transitions. [2023-08-30 08:51:01,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 269 transitions, 4715 flow [2023-08-30 08:51:01,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 269 transitions, 4560 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-08-30 08:51:01,138 INFO L231 Difference]: Finished difference. Result has 163 places, 262 transitions, 4266 flow [2023-08-30 08:51:01,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3896, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4266, PETRI_PLACES=163, PETRI_TRANSITIONS=262} [2023-08-30 08:51:01,139 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2023-08-30 08:51:01,139 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 262 transitions, 4266 flow [2023-08-30 08:51:01,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:01,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:01,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 08:51:01,140 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:01,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash -318641357, now seen corresponding path program 3 times [2023-08-30 08:51:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404087739] [2023-08-30 08:51:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:01,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:01,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:01,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404087739] [2023-08-30 08:51:01,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404087739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:01,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:01,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:01,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924446610] [2023-08-30 08:51:01,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:01,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:01,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:01,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:01,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 262 transitions, 4266 flow. Second operand has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:01,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:01,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:02,779 INFO L130 PetriNetUnfolder]: 2386/4600 cut-off events. [2023-08-30 08:51:02,779 INFO L131 PetriNetUnfolder]: For 49442/49442 co-relation queries the response was YES. [2023-08-30 08:51:02,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28439 conditions, 4600 events. 2386/4600 cut-off events. For 49442/49442 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 34580 event pairs, 1095 based on Foata normal form. 6/4338 useless extension candidates. Maximal degree in co-relation 28208. Up to 4219 conditions per place. [2023-08-30 08:51:02,807 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 166 selfloop transitions, 101 changer transitions 0/269 dead transitions. [2023-08-30 08:51:02,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 269 transitions, 4845 flow [2023-08-30 08:51:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:02,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1598 transitions. [2023-08-30 08:51:02,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45866819747416765 [2023-08-30 08:51:02,809 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1598 transitions. [2023-08-30 08:51:02,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1598 transitions. [2023-08-30 08:51:02,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:02,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1598 transitions. [2023-08-30 08:51:02,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 122.92307692307692) internal successors, (1598), 13 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,813 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,813 INFO L175 Difference]: Start difference. First operand has 163 places, 262 transitions, 4266 flow. Second operand 13 states and 1598 transitions. [2023-08-30 08:51:02,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 269 transitions, 4845 flow [2023-08-30 08:51:02,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 269 transitions, 4555 flow, removed 19 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:02,979 INFO L231 Difference]: Finished difference. Result has 164 places, 263 transitions, 4223 flow [2023-08-30 08:51:02,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3981, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4223, PETRI_PLACES=164, PETRI_TRANSITIONS=263} [2023-08-30 08:51:02,980 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 126 predicate places. [2023-08-30 08:51:02,980 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 263 transitions, 4223 flow [2023-08-30 08:51:02,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:02,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:02,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 08:51:02,981 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:02,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash 76243346, now seen corresponding path program 1 times [2023-08-30 08:51:02,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49641958] [2023-08-30 08:51:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:03,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:03,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49641958] [2023-08-30 08:51:03,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49641958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:03,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:03,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:03,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124222803] [2023-08-30 08:51:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:03,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:03,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:03,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:03,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 268 [2023-08-30 08:51:03,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 263 transitions, 4223 flow. Second operand has 10 states, 10 states have (on average 116.1) internal successors, (1161), 10 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:03,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 268 [2023-08-30 08:51:03,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:04,948 INFO L130 PetriNetUnfolder]: 2669/5159 cut-off events. [2023-08-30 08:51:04,948 INFO L131 PetriNetUnfolder]: For 57528/57528 co-relation queries the response was YES. [2023-08-30 08:51:04,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31933 conditions, 5159 events. 2669/5159 cut-off events. For 57528/57528 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 39850 event pairs, 395 based on Foata normal form. 52/4921 useless extension candidates. Maximal degree in co-relation 31169. Up to 2716 conditions per place. [2023-08-30 08:51:04,976 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 196 selfloop transitions, 188 changer transitions 2/388 dead transitions. [2023-08-30 08:51:04,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 388 transitions, 6404 flow [2023-08-30 08:51:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:04,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1736 transitions. [2023-08-30 08:51:04,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4626865671641791 [2023-08-30 08:51:04,979 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1736 transitions. [2023-08-30 08:51:04,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1736 transitions. [2023-08-30 08:51:04,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:04,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1736 transitions. [2023-08-30 08:51:04,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:04,983 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:04,983 INFO L175 Difference]: Start difference. First operand has 164 places, 263 transitions, 4223 flow. Second operand 14 states and 1736 transitions. [2023-08-30 08:51:04,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 388 transitions, 6404 flow [2023-08-30 08:51:05,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 388 transitions, 6146 flow, removed 17 selfloop flow, removed 10 redundant places. [2023-08-30 08:51:05,130 INFO L231 Difference]: Finished difference. Result has 170 places, 329 transitions, 5393 flow [2023-08-30 08:51:05,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3977, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5393, PETRI_PLACES=170, PETRI_TRANSITIONS=329} [2023-08-30 08:51:05,130 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 08:51:05,130 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 329 transitions, 5393 flow [2023-08-30 08:51:05,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.1) internal successors, (1161), 10 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:05,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:05,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 08:51:05,131 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:05,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1348042412, now seen corresponding path program 1 times [2023-08-30 08:51:05,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:05,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599209850] [2023-08-30 08:51:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:05,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:05,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599209850] [2023-08-30 08:51:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599209850] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:51:05,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151148115] [2023-08-30 08:51:05,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:05,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:51:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:51:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:51:05,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 08:51:05,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 329 transitions, 5393 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:05,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 08:51:05,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:06,008 INFO L130 PetriNetUnfolder]: 1797/3622 cut-off events. [2023-08-30 08:51:06,008 INFO L131 PetriNetUnfolder]: For 46054/46092 co-relation queries the response was YES. [2023-08-30 08:51:06,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23708 conditions, 3622 events. 1797/3622 cut-off events. For 46054/46092 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 27580 event pairs, 571 based on Foata normal form. 72/3439 useless extension candidates. Maximal degree in co-relation 22594. Up to 2070 conditions per place. [2023-08-30 08:51:06,027 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 219 selfloop transitions, 21 changer transitions 14/284 dead transitions. [2023-08-30 08:51:06,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 284 transitions, 5059 flow [2023-08-30 08:51:06,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:51:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:51:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2023-08-30 08:51:06,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5087064676616916 [2023-08-30 08:51:06,029 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 818 transitions. [2023-08-30 08:51:06,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 818 transitions. [2023-08-30 08:51:06,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:06,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 818 transitions. [2023-08-30 08:51:06,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,031 INFO L175 Difference]: Start difference. First operand has 170 places, 329 transitions, 5393 flow. Second operand 6 states and 818 transitions. [2023-08-30 08:51:06,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 284 transitions, 5059 flow [2023-08-30 08:51:06,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 284 transitions, 4742 flow, removed 64 selfloop flow, removed 13 redundant places. [2023-08-30 08:51:06,137 INFO L231 Difference]: Finished difference. Result has 153 places, 243 transitions, 3711 flow [2023-08-30 08:51:06,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3713, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3711, PETRI_PLACES=153, PETRI_TRANSITIONS=243} [2023-08-30 08:51:06,138 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 115 predicate places. [2023-08-30 08:51:06,138 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 243 transitions, 3711 flow [2023-08-30 08:51:06,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:06,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:06,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 08:51:06,139 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:06,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1460036471, now seen corresponding path program 1 times [2023-08-30 08:51:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:06,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609070274] [2023-08-30 08:51:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:06,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609070274] [2023-08-30 08:51:06,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609070274] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:06,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:06,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:06,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475766710] [2023-08-30 08:51:06,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:06,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:06,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:06,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:06,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:07,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 268 [2023-08-30 08:51:07,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 243 transitions, 3711 flow. Second operand has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:07,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 268 [2023-08-30 08:51:07,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:09,765 INFO L130 PetriNetUnfolder]: 2098/4196 cut-off events. [2023-08-30 08:51:09,765 INFO L131 PetriNetUnfolder]: For 47197/47197 co-relation queries the response was YES. [2023-08-30 08:51:09,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26568 conditions, 4196 events. 2098/4196 cut-off events. For 47197/47197 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 32212 event pairs, 733 based on Foata normal form. 14/3958 useless extension candidates. Maximal degree in co-relation 25351. Up to 3317 conditions per place. [2023-08-30 08:51:09,790 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 170 selfloop transitions, 191 changer transitions 0/363 dead transitions. [2023-08-30 08:51:09,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 363 transitions, 5993 flow [2023-08-30 08:51:09,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-30 08:51:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-30 08:51:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3168 transitions. [2023-08-30 08:51:09,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43781094527363185 [2023-08-30 08:51:09,793 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3168 transitions. [2023-08-30 08:51:09,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3168 transitions. [2023-08-30 08:51:09,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:09,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3168 transitions. [2023-08-30 08:51:09,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 117.33333333333333) internal successors, (3168), 27 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:09,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 268.0) internal successors, (7504), 28 states have internal predecessors, (7504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:09,800 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 268.0) internal successors, (7504), 28 states have internal predecessors, (7504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:09,800 INFO L175 Difference]: Start difference. First operand has 153 places, 243 transitions, 3711 flow. Second operand 27 states and 3168 transitions. [2023-08-30 08:51:09,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 363 transitions, 5993 flow [2023-08-30 08:51:09,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 363 transitions, 5950 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 08:51:09,906 INFO L231 Difference]: Finished difference. Result has 179 places, 320 transitions, 5402 flow [2023-08-30 08:51:09,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3672, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5402, PETRI_PLACES=179, PETRI_TRANSITIONS=320} [2023-08-30 08:51:09,906 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 141 predicate places. [2023-08-30 08:51:09,906 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 320 transitions, 5402 flow [2023-08-30 08:51:09,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:09,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:09,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:09,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 08:51:09,907 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:09,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2145868518, now seen corresponding path program 2 times [2023-08-30 08:51:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:09,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194051965] [2023-08-30 08:51:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:10,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:10,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194051965] [2023-08-30 08:51:10,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194051965] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:10,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:10,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:51:10,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41621149] [2023-08-30 08:51:10,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:10,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:51:10,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:10,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:51:10,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:51:10,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 08:51:10,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 320 transitions, 5402 flow. Second operand has 7 states, 7 states have (on average 119.57142857142857) internal successors, (837), 7 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:10,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 08:51:10,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:11,226 INFO L130 PetriNetUnfolder]: 2134/4292 cut-off events. [2023-08-30 08:51:11,226 INFO L131 PetriNetUnfolder]: For 57314/57314 co-relation queries the response was YES. [2023-08-30 08:51:11,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28477 conditions, 4292 events. 2134/4292 cut-off events. For 57314/57314 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 33432 event pairs, 609 based on Foata normal form. 70/4130 useless extension candidates. Maximal degree in co-relation 26361. Up to 1780 conditions per place. [2023-08-30 08:51:11,254 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 324 selfloop transitions, 67 changer transitions 2/395 dead transitions. [2023-08-30 08:51:11,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 395 transitions, 7155 flow [2023-08-30 08:51:11,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:51:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:51:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 901 transitions. [2023-08-30 08:51:11,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4802771855010661 [2023-08-30 08:51:11,256 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 901 transitions. [2023-08-30 08:51:11,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 901 transitions. [2023-08-30 08:51:11,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:11,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 901 transitions. [2023-08-30 08:51:11,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.71428571428572) internal successors, (901), 7 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,259 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,259 INFO L175 Difference]: Start difference. First operand has 179 places, 320 transitions, 5402 flow. Second operand 7 states and 901 transitions. [2023-08-30 08:51:11,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 395 transitions, 7155 flow [2023-08-30 08:51:11,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 395 transitions, 6924 flow, removed 70 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:11,489 INFO L231 Difference]: Finished difference. Result has 176 places, 335 transitions, 5710 flow [2023-08-30 08:51:11,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=5181, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5710, PETRI_PLACES=176, PETRI_TRANSITIONS=335} [2023-08-30 08:51:11,490 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 138 predicate places. [2023-08-30 08:51:11,490 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 335 transitions, 5710 flow [2023-08-30 08:51:11,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.57142857142857) internal successors, (837), 7 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:11,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:11,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 08:51:11,491 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:11,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash 75349616, now seen corresponding path program 3 times [2023-08-30 08:51:11,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:11,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532525785] [2023-08-30 08:51:11,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:11,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:11,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532525785] [2023-08-30 08:51:11,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532525785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:11,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:11,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:51:11,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347137189] [2023-08-30 08:51:11,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:11,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:51:11,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:11,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:51:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:51:11,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 08:51:11,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 335 transitions, 5710 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:11,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 08:51:11,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:12,022 INFO L130 PetriNetUnfolder]: 370/1060 cut-off events. [2023-08-30 08:51:12,022 INFO L131 PetriNetUnfolder]: For 15690/15698 co-relation queries the response was YES. [2023-08-30 08:51:12,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6627 conditions, 1060 events. 370/1060 cut-off events. For 15690/15698 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7707 event pairs, 107 based on Foata normal form. 65/1090 useless extension candidates. Maximal degree in co-relation 6565. Up to 465 conditions per place. [2023-08-30 08:51:12,028 INFO L137 encePairwiseOnDemand]: 262/268 looper letters, 130 selfloop transitions, 15 changer transitions 20/186 dead transitions. [2023-08-30 08:51:12,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 186 transitions, 3281 flow [2023-08-30 08:51:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:51:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:51:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 808 transitions. [2023-08-30 08:51:12,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5024875621890548 [2023-08-30 08:51:12,029 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 808 transitions. [2023-08-30 08:51:12,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 808 transitions. [2023-08-30 08:51:12,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:12,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 808 transitions. [2023-08-30 08:51:12,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.66666666666666) internal successors, (808), 6 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,032 INFO L175 Difference]: Start difference. First operand has 176 places, 335 transitions, 5710 flow. Second operand 6 states and 808 transitions. [2023-08-30 08:51:12,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 186 transitions, 3281 flow [2023-08-30 08:51:12,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 186 transitions, 3097 flow, removed 70 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:12,080 INFO L231 Difference]: Finished difference. Result has 157 places, 155 transitions, 2333 flow [2023-08-30 08:51:12,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2521, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2333, PETRI_PLACES=157, PETRI_TRANSITIONS=155} [2023-08-30 08:51:12,081 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 119 predicate places. [2023-08-30 08:51:12,081 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 155 transitions, 2333 flow [2023-08-30 08:51:12,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:12,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:12,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 08:51:12,082 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:12,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash 892086494, now seen corresponding path program 1 times [2023-08-30 08:51:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:12,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538736074] [2023-08-30 08:51:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:12,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:12,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:12,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538736074] [2023-08-30 08:51:12,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538736074] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:12,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:12,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:12,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641122125] [2023-08-30 08:51:12,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:12,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:12,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:12,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:12,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:12,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:51:12,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 155 transitions, 2333 flow. Second operand has 10 states, 10 states have (on average 121.2) internal successors, (1212), 10 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:12,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:51:12,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:13,266 INFO L130 PetriNetUnfolder]: 398/1218 cut-off events. [2023-08-30 08:51:13,266 INFO L131 PetriNetUnfolder]: For 12804/12804 co-relation queries the response was YES. [2023-08-30 08:51:13,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7157 conditions, 1218 events. 398/1218 cut-off events. For 12804/12804 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 9506 event pairs, 185 based on Foata normal form. 0/1188 useless extension candidates. Maximal degree in co-relation 7097. Up to 795 conditions per place. [2023-08-30 08:51:13,271 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 194 selfloop transitions, 41 changer transitions 2/239 dead transitions. [2023-08-30 08:51:13,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 239 transitions, 3995 flow [2023-08-30 08:51:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1513 transitions. [2023-08-30 08:51:13,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4704601990049751 [2023-08-30 08:51:13,273 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1513 transitions. [2023-08-30 08:51:13,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1513 transitions. [2023-08-30 08:51:13,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:13,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1513 transitions. [2023-08-30 08:51:13,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 126.08333333333333) internal successors, (1513), 12 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,276 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,276 INFO L175 Difference]: Start difference. First operand has 157 places, 155 transitions, 2333 flow. Second operand 12 states and 1513 transitions. [2023-08-30 08:51:13,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 239 transitions, 3995 flow [2023-08-30 08:51:13,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 239 transitions, 3817 flow, removed 50 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:13,309 INFO L231 Difference]: Finished difference. Result has 163 places, 191 transitions, 3014 flow [2023-08-30 08:51:13,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2227, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3014, PETRI_PLACES=163, PETRI_TRANSITIONS=191} [2023-08-30 08:51:13,310 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2023-08-30 08:51:13,310 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 191 transitions, 3014 flow [2023-08-30 08:51:13,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.2) internal successors, (1212), 10 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:13,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:13,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 08:51:13,310 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:13,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:13,311 INFO L85 PathProgramCache]: Analyzing trace with hash 337973894, now seen corresponding path program 2 times [2023-08-30 08:51:13,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:13,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107695359] [2023-08-30 08:51:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:13,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:13,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:13,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107695359] [2023-08-30 08:51:13,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107695359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:13,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:13,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:13,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105241724] [2023-08-30 08:51:13,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:13,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:13,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:13,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:13,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:13,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 08:51:13,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 191 transitions, 3014 flow. Second operand has 10 states, 10 states have (on average 121.2) internal successors, (1212), 10 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:13,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 08:51:13,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:14,310 INFO L130 PetriNetUnfolder]: 404/1233 cut-off events. [2023-08-30 08:51:14,310 INFO L131 PetriNetUnfolder]: For 13659/13659 co-relation queries the response was YES. [2023-08-30 08:51:14,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7327 conditions, 1233 events. 404/1233 cut-off events. For 13659/13659 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9603 event pairs, 184 based on Foata normal form. 1/1224 useless extension candidates. Maximal degree in co-relation 7267. Up to 795 conditions per place. [2023-08-30 08:51:14,316 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 202 selfloop transitions, 48 changer transitions 3/255 dead transitions. [2023-08-30 08:51:14,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 255 transitions, 4349 flow [2023-08-30 08:51:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:14,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:14,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1639 transitions. [2023-08-30 08:51:14,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47043628013777267 [2023-08-30 08:51:14,319 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1639 transitions. [2023-08-30 08:51:14,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1639 transitions. [2023-08-30 08:51:14,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:14,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1639 transitions. [2023-08-30 08:51:14,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 126.07692307692308) internal successors, (1639), 13 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,322 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,322 INFO L175 Difference]: Start difference. First operand has 163 places, 191 transitions, 3014 flow. Second operand 13 states and 1639 transitions. [2023-08-30 08:51:14,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 255 transitions, 4349 flow [2023-08-30 08:51:14,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 255 transitions, 4216 flow, removed 64 selfloop flow, removed 2 redundant places. [2023-08-30 08:51:14,368 INFO L231 Difference]: Finished difference. Result has 177 places, 203 transitions, 3294 flow [2023-08-30 08:51:14,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2901, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3294, PETRI_PLACES=177, PETRI_TRANSITIONS=203} [2023-08-30 08:51:14,368 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 139 predicate places. [2023-08-30 08:51:14,368 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 203 transitions, 3294 flow [2023-08-30 08:51:14,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.2) internal successors, (1212), 10 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:14,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:14,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 08:51:14,369 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:14,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:14,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2012982921, now seen corresponding path program 1 times [2023-08-30 08:51:14,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:14,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899858314] [2023-08-30 08:51:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:14,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:14,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:14,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899858314] [2023-08-30 08:51:14,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899858314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:14,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:14,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:14,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380016923] [2023-08-30 08:51:14,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:14,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:14,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:14,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:15,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:51:15,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 203 transitions, 3294 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:15,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:51:15,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:15,898 INFO L130 PetriNetUnfolder]: 422/1295 cut-off events. [2023-08-30 08:51:15,898 INFO L131 PetriNetUnfolder]: For 14449/14449 co-relation queries the response was YES. [2023-08-30 08:51:15,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7692 conditions, 1295 events. 422/1295 cut-off events. For 14449/14449 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 10240 event pairs, 177 based on Foata normal form. 0/1287 useless extension candidates. Maximal degree in co-relation 7627. Up to 877 conditions per place. [2023-08-30 08:51:15,904 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 171 selfloop transitions, 67 changer transitions 1/241 dead transitions. [2023-08-30 08:51:15,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 241 transitions, 4276 flow [2023-08-30 08:51:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:15,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1860 transitions. [2023-08-30 08:51:15,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4626865671641791 [2023-08-30 08:51:15,906 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1860 transitions. [2023-08-30 08:51:15,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1860 transitions. [2023-08-30 08:51:15,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:15,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1860 transitions. [2023-08-30 08:51:15,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,910 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,911 INFO L175 Difference]: Start difference. First operand has 177 places, 203 transitions, 3294 flow. Second operand 15 states and 1860 transitions. [2023-08-30 08:51:15,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 241 transitions, 4276 flow [2023-08-30 08:51:15,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 241 transitions, 4204 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:15,968 INFO L231 Difference]: Finished difference. Result has 189 places, 213 transitions, 3617 flow [2023-08-30 08:51:15,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3222, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3617, PETRI_PLACES=189, PETRI_TRANSITIONS=213} [2023-08-30 08:51:15,968 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 151 predicate places. [2023-08-30 08:51:15,969 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 213 transitions, 3617 flow [2023-08-30 08:51:15,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:15,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:15,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 08:51:15,969 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:15,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:15,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1817098211, now seen corresponding path program 1 times [2023-08-30 08:51:15,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:15,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599483270] [2023-08-30 08:51:15,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:15,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:16,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:16,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599483270] [2023-08-30 08:51:16,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599483270] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:16,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:16,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:16,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259750175] [2023-08-30 08:51:16,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:16,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:16,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:16,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:16,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:16,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 213 transitions, 3617 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:16,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:16,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:17,439 INFO L130 PetriNetUnfolder]: 507/1550 cut-off events. [2023-08-30 08:51:17,439 INFO L131 PetriNetUnfolder]: For 18587/18587 co-relation queries the response was YES. [2023-08-30 08:51:17,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9458 conditions, 1550 events. 507/1550 cut-off events. For 18587/18587 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12784 event pairs, 219 based on Foata normal form. 7/1557 useless extension candidates. Maximal degree in co-relation 9390. Up to 1141 conditions per place. [2023-08-30 08:51:17,447 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 210 selfloop transitions, 60 changer transitions 2/274 dead transitions. [2023-08-30 08:51:17,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 274 transitions, 5037 flow [2023-08-30 08:51:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1239 transitions. [2023-08-30 08:51:17,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4623134328358209 [2023-08-30 08:51:17,449 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1239 transitions. [2023-08-30 08:51:17,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1239 transitions. [2023-08-30 08:51:17,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:17,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1239 transitions. [2023-08-30 08:51:17,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.9) internal successors, (1239), 10 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:17,451 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:17,451 INFO L175 Difference]: Start difference. First operand has 189 places, 213 transitions, 3617 flow. Second operand 10 states and 1239 transitions. [2023-08-30 08:51:17,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 274 transitions, 5037 flow [2023-08-30 08:51:17,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 274 transitions, 4887 flow, removed 23 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:17,521 INFO L231 Difference]: Finished difference. Result has 193 places, 241 transitions, 4154 flow [2023-08-30 08:51:17,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3483, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4154, PETRI_PLACES=193, PETRI_TRANSITIONS=241} [2023-08-30 08:51:17,521 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 155 predicate places. [2023-08-30 08:51:17,521 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 241 transitions, 4154 flow [2023-08-30 08:51:17,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:17,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:17,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 08:51:17,522 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:17,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1242509412, now seen corresponding path program 3 times [2023-08-30 08:51:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:17,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717965275] [2023-08-30 08:51:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:17,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:17,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:17,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717965275] [2023-08-30 08:51:17,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717965275] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:17,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:17,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:17,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018398777] [2023-08-30 08:51:17,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:17,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:17,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:17,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:17,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:18,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:51:18,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 241 transitions, 4154 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:18,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:51:18,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:19,369 INFO L130 PetriNetUnfolder]: 682/2078 cut-off events. [2023-08-30 08:51:19,369 INFO L131 PetriNetUnfolder]: For 26853/26853 co-relation queries the response was YES. [2023-08-30 08:51:19,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12871 conditions, 2078 events. 682/2078 cut-off events. For 26853/26853 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 18644 event pairs, 256 based on Foata normal form. 13/2091 useless extension candidates. Maximal degree in co-relation 12800. Up to 735 conditions per place. [2023-08-30 08:51:19,385 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 222 selfloop transitions, 143 changer transitions 4/371 dead transitions. [2023-08-30 08:51:19,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 371 transitions, 6866 flow [2023-08-30 08:51:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 08:51:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 08:51:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2733 transitions. [2023-08-30 08:51:19,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4635345997286296 [2023-08-30 08:51:19,388 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2733 transitions. [2023-08-30 08:51:19,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2733 transitions. [2023-08-30 08:51:19,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:19,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2733 transitions. [2023-08-30 08:51:19,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 124.22727272727273) internal successors, (2733), 22 states have internal predecessors, (2733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 268.0) internal successors, (6164), 23 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,394 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 268.0) internal successors, (6164), 23 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,394 INFO L175 Difference]: Start difference. First operand has 193 places, 241 transitions, 4154 flow. Second operand 22 states and 2733 transitions. [2023-08-30 08:51:19,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 371 transitions, 6866 flow [2023-08-30 08:51:19,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 371 transitions, 6782 flow, removed 29 selfloop flow, removed 3 redundant places. [2023-08-30 08:51:19,492 INFO L231 Difference]: Finished difference. Result has 215 places, 291 transitions, 5520 flow [2023-08-30 08:51:19,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=4086, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5520, PETRI_PLACES=215, PETRI_TRANSITIONS=291} [2023-08-30 08:51:19,493 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 177 predicate places. [2023-08-30 08:51:19,493 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 291 transitions, 5520 flow [2023-08-30 08:51:19,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:19,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:19,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 08:51:19,494 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:19,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1242509413, now seen corresponding path program 2 times [2023-08-30 08:51:19,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:19,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070400431] [2023-08-30 08:51:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:19,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:19,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070400431] [2023-08-30 08:51:19,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070400431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:19,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:19,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:51:19,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458875818] [2023-08-30 08:51:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:19,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:51:19,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:19,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:51:19,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:51:19,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 08:51:19,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 291 transitions, 5520 flow. Second operand has 8 states, 8 states have (on average 128.5) internal successors, (1028), 8 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:19,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 08:51:19,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:20,688 INFO L130 PetriNetUnfolder]: 776/2439 cut-off events. [2023-08-30 08:51:20,688 INFO L131 PetriNetUnfolder]: For 34235/34254 co-relation queries the response was YES. [2023-08-30 08:51:20,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15197 conditions, 2439 events. 776/2439 cut-off events. For 34235/34254 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 23235 event pairs, 284 based on Foata normal form. 29/2450 useless extension candidates. Maximal degree in co-relation 15121. Up to 578 conditions per place. [2023-08-30 08:51:20,701 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 204 selfloop transitions, 124 changer transitions 3/365 dead transitions. [2023-08-30 08:51:20,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 365 transitions, 7124 flow [2023-08-30 08:51:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1346 transitions. [2023-08-30 08:51:20,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5022388059701492 [2023-08-30 08:51:20,706 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1346 transitions. [2023-08-30 08:51:20,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1346 transitions. [2023-08-30 08:51:20,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:20,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1346 transitions. [2023-08-30 08:51:20,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.6) internal successors, (1346), 10 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:20,709 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:20,709 INFO L175 Difference]: Start difference. First operand has 215 places, 291 transitions, 5520 flow. Second operand 10 states and 1346 transitions. [2023-08-30 08:51:20,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 365 transitions, 7124 flow [2023-08-30 08:51:20,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 365 transitions, 6839 flow, removed 97 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:20,829 INFO L231 Difference]: Finished difference. Result has 218 places, 306 transitions, 5996 flow [2023-08-30 08:51:20,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=5055, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5996, PETRI_PLACES=218, PETRI_TRANSITIONS=306} [2023-08-30 08:51:20,830 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 180 predicate places. [2023-08-30 08:51:20,830 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 306 transitions, 5996 flow [2023-08-30 08:51:20,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 128.5) internal successors, (1028), 8 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:20,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:20,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 08:51:20,830 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:20,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:20,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1781135286, now seen corresponding path program 4 times [2023-08-30 08:51:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:20,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975594594] [2023-08-30 08:51:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:21,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:21,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975594594] [2023-08-30 08:51:21,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975594594] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:21,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:21,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:21,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177386365] [2023-08-30 08:51:21,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:21,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:21,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:21,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:21,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:21,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:51:21,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 306 transitions, 5996 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:21,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:21,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:51:21,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:22,298 INFO L130 PetriNetUnfolder]: 829/2544 cut-off events. [2023-08-30 08:51:22,299 INFO L131 PetriNetUnfolder]: For 40587/40587 co-relation queries the response was YES. [2023-08-30 08:51:22,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16433 conditions, 2544 events. 829/2544 cut-off events. For 40587/40587 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 23998 event pairs, 353 based on Foata normal form. 1/2545 useless extension candidates. Maximal degree in co-relation 16356. Up to 1072 conditions per place. [2023-08-30 08:51:22,315 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 248 selfloop transitions, 129 changer transitions 3/382 dead transitions. [2023-08-30 08:51:22,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 382 transitions, 8041 flow [2023-08-30 08:51:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1745 transitions. [2023-08-30 08:51:22,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650852878464819 [2023-08-30 08:51:22,318 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1745 transitions. [2023-08-30 08:51:22,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1745 transitions. [2023-08-30 08:51:22,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:22,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1745 transitions. [2023-08-30 08:51:22,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.64285714285714) internal successors, (1745), 14 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:22,322 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:22,322 INFO L175 Difference]: Start difference. First operand has 218 places, 306 transitions, 5996 flow. Second operand 14 states and 1745 transitions. [2023-08-30 08:51:22,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 382 transitions, 8041 flow [2023-08-30 08:51:22,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 382 transitions, 7920 flow, removed 50 selfloop flow, removed 3 redundant places. [2023-08-30 08:51:22,483 INFO L231 Difference]: Finished difference. Result has 232 places, 322 transitions, 6723 flow [2023-08-30 08:51:22,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=5911, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6723, PETRI_PLACES=232, PETRI_TRANSITIONS=322} [2023-08-30 08:51:22,484 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 194 predicate places. [2023-08-30 08:51:22,484 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 322 transitions, 6723 flow [2023-08-30 08:51:22,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:22,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:22,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 08:51:22,485 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:22,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1796622013, now seen corresponding path program 3 times [2023-08-30 08:51:22,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:22,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570960927] [2023-08-30 08:51:22,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:22,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:22,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:22,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570960927] [2023-08-30 08:51:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570960927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:22,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:22,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:51:22,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535733487] [2023-08-30 08:51:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:22,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:51:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:51:22,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:51:22,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 08:51:22,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 322 transitions, 6723 flow. Second operand has 8 states, 8 states have (on average 128.5) internal successors, (1028), 8 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:22,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 08:51:22,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:23,565 INFO L130 PetriNetUnfolder]: 836/2591 cut-off events. [2023-08-30 08:51:23,565 INFO L131 PetriNetUnfolder]: For 42781/42797 co-relation queries the response was YES. [2023-08-30 08:51:23,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 2591 events. 836/2591 cut-off events. For 42781/42797 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 24910 event pairs, 326 based on Foata normal form. 10/2583 useless extension candidates. Maximal degree in co-relation 16626. Up to 1075 conditions per place. [2023-08-30 08:51:23,582 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 180 selfloop transitions, 177 changer transitions 3/395 dead transitions. [2023-08-30 08:51:23,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 395 transitions, 8409 flow [2023-08-30 08:51:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1602 transitions. [2023-08-30 08:51:23,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498134328358209 [2023-08-30 08:51:23,584 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1602 transitions. [2023-08-30 08:51:23,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1602 transitions. [2023-08-30 08:51:23,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:23,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1602 transitions. [2023-08-30 08:51:23,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 133.5) internal successors, (1602), 12 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,587 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,587 INFO L175 Difference]: Start difference. First operand has 232 places, 322 transitions, 6723 flow. Second operand 12 states and 1602 transitions. [2023-08-30 08:51:23,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 395 transitions, 8409 flow [2023-08-30 08:51:23,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 395 transitions, 8280 flow, removed 20 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:23,737 INFO L231 Difference]: Finished difference. Result has 235 places, 344 transitions, 7576 flow [2023-08-30 08:51:23,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=6472, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7576, PETRI_PLACES=235, PETRI_TRANSITIONS=344} [2023-08-30 08:51:23,738 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 197 predicate places. [2023-08-30 08:51:23,738 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 344 transitions, 7576 flow [2023-08-30 08:51:23,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 128.5) internal successors, (1028), 8 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:23,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:23,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 08:51:23,738 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:23,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash -369290274, now seen corresponding path program 5 times [2023-08-30 08:51:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667460603] [2023-08-30 08:51:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:24,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667460603] [2023-08-30 08:51:24,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667460603] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:24,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:24,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:24,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160116813] [2023-08-30 08:51:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:24,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:24,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:24,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:24,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:51:24,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 344 transitions, 7576 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:24,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:24,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:51:24,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:25,407 INFO L130 PetriNetUnfolder]: 878/2672 cut-off events. [2023-08-30 08:51:25,407 INFO L131 PetriNetUnfolder]: For 51785/51785 co-relation queries the response was YES. [2023-08-30 08:51:25,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17990 conditions, 2672 events. 878/2672 cut-off events. For 51785/51785 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 25488 event pairs, 375 based on Foata normal form. 1/2673 useless extension candidates. Maximal degree in co-relation 17907. Up to 1184 conditions per place. [2023-08-30 08:51:25,424 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 267 selfloop transitions, 132 changer transitions 3/404 dead transitions. [2023-08-30 08:51:25,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 404 transitions, 9405 flow [2023-08-30 08:51:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1743 transitions. [2023-08-30 08:51:25,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46455223880597013 [2023-08-30 08:51:25,426 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1743 transitions. [2023-08-30 08:51:25,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1743 transitions. [2023-08-30 08:51:25,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:25,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1743 transitions. [2023-08-30 08:51:25,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.5) internal successors, (1743), 14 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:25,430 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:25,430 INFO L175 Difference]: Start difference. First operand has 235 places, 344 transitions, 7576 flow. Second operand 14 states and 1743 transitions. [2023-08-30 08:51:25,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 404 transitions, 9405 flow [2023-08-30 08:51:25,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 404 transitions, 9268 flow, removed 39 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:25,620 INFO L231 Difference]: Finished difference. Result has 241 places, 344 transitions, 7730 flow [2023-08-30 08:51:25,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=7449, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7730, PETRI_PLACES=241, PETRI_TRANSITIONS=344} [2023-08-30 08:51:25,621 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 203 predicate places. [2023-08-30 08:51:25,621 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 344 transitions, 7730 flow [2023-08-30 08:51:25,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:25,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:25,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 08:51:25,621 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:25,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:25,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2058923693, now seen corresponding path program 4 times [2023-08-30 08:51:25,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:25,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086193734] [2023-08-30 08:51:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:26,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086193734] [2023-08-30 08:51:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086193734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:26,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:26,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879800522] [2023-08-30 08:51:26,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:26,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:26,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:26,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:26,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:26,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:26,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 344 transitions, 7730 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:26,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:26,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:27,336 INFO L130 PetriNetUnfolder]: 872/2646 cut-off events. [2023-08-30 08:51:27,337 INFO L131 PetriNetUnfolder]: For 51458/51458 co-relation queries the response was YES. [2023-08-30 08:51:27,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17831 conditions, 2646 events. 872/2646 cut-off events. For 51458/51458 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 25082 event pairs, 427 based on Foata normal form. 8/2654 useless extension candidates. Maximal degree in co-relation 17750. Up to 2143 conditions per place. [2023-08-30 08:51:27,355 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 326 selfloop transitions, 46 changer transitions 2/376 dead transitions. [2023-08-30 08:51:27,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 376 transitions, 8947 flow [2023-08-30 08:51:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1235 transitions. [2023-08-30 08:51:27,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4608208955223881 [2023-08-30 08:51:27,356 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1235 transitions. [2023-08-30 08:51:27,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1235 transitions. [2023-08-30 08:51:27,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:27,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1235 transitions. [2023-08-30 08:51:27,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.5) internal successors, (1235), 10 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:27,359 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:27,359 INFO L175 Difference]: Start difference. First operand has 241 places, 344 transitions, 7730 flow. Second operand 10 states and 1235 transitions. [2023-08-30 08:51:27,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 376 transitions, 8947 flow [2023-08-30 08:51:27,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 376 transitions, 8675 flow, removed 10 selfloop flow, removed 13 redundant places. [2023-08-30 08:51:27,527 INFO L231 Difference]: Finished difference. Result has 239 places, 348 transitions, 7720 flow [2023-08-30 08:51:27,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=7310, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7720, PETRI_PLACES=239, PETRI_TRANSITIONS=348} [2023-08-30 08:51:27,529 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 201 predicate places. [2023-08-30 08:51:27,529 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 348 transitions, 7720 flow [2023-08-30 08:51:27,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:27,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:27,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 08:51:27,530 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:27,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2012982920, now seen corresponding path program 1 times [2023-08-30 08:51:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:27,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635821233] [2023-08-30 08:51:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:28,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:28,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635821233] [2023-08-30 08:51:28,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635821233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:28,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:28,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:28,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686059824] [2023-08-30 08:51:28,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:28,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:28,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:28,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:28,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:28,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:51:28,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 348 transitions, 7720 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:28,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:28,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:51:28,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:29,456 INFO L130 PetriNetUnfolder]: 869/2647 cut-off events. [2023-08-30 08:51:29,456 INFO L131 PetriNetUnfolder]: For 50014/50014 co-relation queries the response was YES. [2023-08-30 08:51:29,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17656 conditions, 2647 events. 869/2647 cut-off events. For 50014/50014 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 25147 event pairs, 446 based on Foata normal form. 1/2648 useless extension candidates. Maximal degree in co-relation 17575. Up to 2357 conditions per place. [2023-08-30 08:51:29,470 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 305 selfloop transitions, 58 changer transitions 1/366 dead transitions. [2023-08-30 08:51:29,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 366 transitions, 8707 flow [2023-08-30 08:51:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1846 transitions. [2023-08-30 08:51:29,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592039800995025 [2023-08-30 08:51:29,474 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1846 transitions. [2023-08-30 08:51:29,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1846 transitions. [2023-08-30 08:51:29,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:29,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1846 transitions. [2023-08-30 08:51:29,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 123.06666666666666) internal successors, (1846), 15 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,478 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,478 INFO L175 Difference]: Start difference. First operand has 239 places, 348 transitions, 7720 flow. Second operand 15 states and 1846 transitions. [2023-08-30 08:51:29,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 366 transitions, 8707 flow [2023-08-30 08:51:29,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 366 transitions, 8559 flow, removed 54 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:29,644 INFO L231 Difference]: Finished difference. Result has 250 places, 353 transitions, 7847 flow [2023-08-30 08:51:29,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=7572, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7847, PETRI_PLACES=250, PETRI_TRANSITIONS=353} [2023-08-30 08:51:29,645 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 212 predicate places. [2023-08-30 08:51:29,645 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 353 transitions, 7847 flow [2023-08-30 08:51:29,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:29,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:29,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 08:51:29,646 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:29,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash 351056105, now seen corresponding path program 5 times [2023-08-30 08:51:29,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:29,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312593519] [2023-08-30 08:51:29,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:29,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:30,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312593519] [2023-08-30 08:51:30,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312593519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:30,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:30,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921893770] [2023-08-30 08:51:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:30,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:30,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:30,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 353 transitions, 7847 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:30,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:30,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:30,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:31,287 INFO L130 PetriNetUnfolder]: 868/2636 cut-off events. [2023-08-30 08:51:31,287 INFO L131 PetriNetUnfolder]: For 48708/48708 co-relation queries the response was YES. [2023-08-30 08:51:31,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17474 conditions, 2636 events. 868/2636 cut-off events. For 48708/48708 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 24982 event pairs, 397 based on Foata normal form. 3/2639 useless extension candidates. Maximal degree in co-relation 17390. Up to 846 conditions per place. [2023-08-30 08:51:31,307 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 248 selfloop transitions, 172 changer transitions 3/425 dead transitions. [2023-08-30 08:51:31,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 425 transitions, 9779 flow [2023-08-30 08:51:31,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:31,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1608 transitions. [2023-08-30 08:51:31,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2023-08-30 08:51:31,309 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1608 transitions. [2023-08-30 08:51:31,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1608 transitions. [2023-08-30 08:51:31,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:31,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1608 transitions. [2023-08-30 08:51:31,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.6923076923077) internal successors, (1608), 13 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,314 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,314 INFO L175 Difference]: Start difference. First operand has 250 places, 353 transitions, 7847 flow. Second operand 13 states and 1608 transitions. [2023-08-30 08:51:31,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 425 transitions, 9779 flow [2023-08-30 08:51:31,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 425 transitions, 9638 flow, removed 29 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:31,538 INFO L231 Difference]: Finished difference. Result has 253 places, 365 transitions, 8497 flow [2023-08-30 08:51:31,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=7641, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8497, PETRI_PLACES=253, PETRI_TRANSITIONS=365} [2023-08-30 08:51:31,539 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 215 predicate places. [2023-08-30 08:51:31,539 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 365 transitions, 8497 flow [2023-08-30 08:51:31,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:31,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:31,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 08:51:31,540 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:31,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:31,540 INFO L85 PathProgramCache]: Analyzing trace with hash -453857226, now seen corresponding path program 1 times [2023-08-30 08:51:31,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:31,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960087508] [2023-08-30 08:51:31,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:32,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:32,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960087508] [2023-08-30 08:51:32,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960087508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:32,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:32,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:32,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118281664] [2023-08-30 08:51:32,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:32,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:32,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:32,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:32,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:32,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 365 transitions, 8497 flow. Second operand has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:32,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:32,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:32,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:33,845 INFO L130 PetriNetUnfolder]: 910/2740 cut-off events. [2023-08-30 08:51:33,845 INFO L131 PetriNetUnfolder]: For 54510/54510 co-relation queries the response was YES. [2023-08-30 08:51:33,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18720 conditions, 2740 events. 910/2740 cut-off events. For 54510/54510 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 26233 event pairs, 419 based on Foata normal form. 7/2747 useless extension candidates. Maximal degree in co-relation 18633. Up to 1988 conditions per place. [2023-08-30 08:51:33,865 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 323 selfloop transitions, 94 changer transitions 2/421 dead transitions. [2023-08-30 08:51:33,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 421 transitions, 10274 flow [2023-08-30 08:51:33,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1603 transitions. [2023-08-30 08:51:33,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601033295063146 [2023-08-30 08:51:33,867 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1603 transitions. [2023-08-30 08:51:33,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1603 transitions. [2023-08-30 08:51:33,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:33,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1603 transitions. [2023-08-30 08:51:33,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.3076923076923) internal successors, (1603), 13 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,870 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,870 INFO L175 Difference]: Start difference. First operand has 253 places, 365 transitions, 8497 flow. Second operand 13 states and 1603 transitions. [2023-08-30 08:51:33,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 421 transitions, 10274 flow [2023-08-30 08:51:34,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 421 transitions, 9997 flow, removed 71 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:34,075 INFO L231 Difference]: Finished difference. Result has 262 places, 383 transitions, 8973 flow [2023-08-30 08:51:34,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=8184, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8973, PETRI_PLACES=262, PETRI_TRANSITIONS=383} [2023-08-30 08:51:34,076 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 224 predicate places. [2023-08-30 08:51:34,076 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 383 transitions, 8973 flow [2023-08-30 08:51:34,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:34,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:34,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 08:51:34,077 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:34,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:34,077 INFO L85 PathProgramCache]: Analyzing trace with hash 619881838, now seen corresponding path program 2 times [2023-08-30 08:51:34,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:34,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342935221] [2023-08-30 08:51:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:34,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:34,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:34,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:34,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342935221] [2023-08-30 08:51:34,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342935221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:34,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:34,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:34,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302537158] [2023-08-30 08:51:34,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:34,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:34,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:34,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:34,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:35,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:35,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 383 transitions, 8973 flow. Second operand has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:35,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:35,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:35,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:36,169 INFO L130 PetriNetUnfolder]: 990/2929 cut-off events. [2023-08-30 08:51:36,169 INFO L131 PetriNetUnfolder]: For 61023/61023 co-relation queries the response was YES. [2023-08-30 08:51:36,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20062 conditions, 2929 events. 990/2929 cut-off events. For 61023/61023 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 28284 event pairs, 390 based on Foata normal form. 13/2942 useless extension candidates. Maximal degree in co-relation 19972. Up to 1358 conditions per place. [2023-08-30 08:51:36,189 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 289 selfloop transitions, 175 changer transitions 3/469 dead transitions. [2023-08-30 08:51:36,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 469 transitions, 11384 flow [2023-08-30 08:51:36,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:36,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1722 transitions. [2023-08-30 08:51:36,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.458955223880597 [2023-08-30 08:51:36,191 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1722 transitions. [2023-08-30 08:51:36,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1722 transitions. [2023-08-30 08:51:36,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:36,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1722 transitions. [2023-08-30 08:51:36,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 123.0) internal successors, (1722), 14 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:36,194 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:36,194 INFO L175 Difference]: Start difference. First operand has 262 places, 383 transitions, 8973 flow. Second operand 14 states and 1722 transitions. [2023-08-30 08:51:36,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 469 transitions, 11384 flow [2023-08-30 08:51:36,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 469 transitions, 10958 flow, removed 53 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:36,443 INFO L231 Difference]: Finished difference. Result has 269 places, 408 transitions, 9782 flow [2023-08-30 08:51:36,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=8405, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9782, PETRI_PLACES=269, PETRI_TRANSITIONS=408} [2023-08-30 08:51:36,444 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 231 predicate places. [2023-08-30 08:51:36,444 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 408 transitions, 9782 flow [2023-08-30 08:51:36,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:36,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:36,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 08:51:36,444 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:36,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash -791552035, now seen corresponding path program 1 times [2023-08-30 08:51:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:36,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869470203] [2023-08-30 08:51:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:36,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:37,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:37,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869470203] [2023-08-30 08:51:37,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869470203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:37,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:37,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:37,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608100773] [2023-08-30 08:51:37,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:37,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:37,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:37,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:37,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 268 [2023-08-30 08:51:37,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 408 transitions, 9782 flow. Second operand has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:37,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:37,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 268 [2023-08-30 08:51:37,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:38,676 INFO L130 PetriNetUnfolder]: 984/2951 cut-off events. [2023-08-30 08:51:38,676 INFO L131 PetriNetUnfolder]: For 63295/63295 co-relation queries the response was YES. [2023-08-30 08:51:38,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20529 conditions, 2951 events. 984/2951 cut-off events. For 63295/63295 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 28697 event pairs, 461 based on Foata normal form. 2/2953 useless extension candidates. Maximal degree in co-relation 20437. Up to 2301 conditions per place. [2023-08-30 08:51:38,695 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 344 selfloop transitions, 98 changer transitions 3/447 dead transitions. [2023-08-30 08:51:38,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 447 transitions, 11215 flow [2023-08-30 08:51:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:38,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1702 transitions. [2023-08-30 08:51:38,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45362473347547977 [2023-08-30 08:51:38,697 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1702 transitions. [2023-08-30 08:51:38,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1702 transitions. [2023-08-30 08:51:38,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:38,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1702 transitions. [2023-08-30 08:51:38,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 121.57142857142857) internal successors, (1702), 14 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:38,700 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:38,700 INFO L175 Difference]: Start difference. First operand has 269 places, 408 transitions, 9782 flow. Second operand 14 states and 1702 transitions. [2023-08-30 08:51:38,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 447 transitions, 11215 flow [2023-08-30 08:51:38,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 447 transitions, 11087 flow, removed 34 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:38,926 INFO L231 Difference]: Finished difference. Result has 281 places, 415 transitions, 10095 flow [2023-08-30 08:51:38,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9634, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10095, PETRI_PLACES=281, PETRI_TRANSITIONS=415} [2023-08-30 08:51:38,927 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 243 predicate places. [2023-08-30 08:51:38,927 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 415 transitions, 10095 flow [2023-08-30 08:51:38,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:38,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:38,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 08:51:38,928 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:38,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:38,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1311664907, now seen corresponding path program 1 times [2023-08-30 08:51:38,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:38,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491299414] [2023-08-30 08:51:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:38,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:39,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:39,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:39,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491299414] [2023-08-30 08:51:39,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491299414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:39,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:39,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:51:39,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124674033] [2023-08-30 08:51:39,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:39,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:51:39,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:39,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:51:39,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:51:39,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 08:51:39,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 415 transitions, 10095 flow. Second operand has 8 states, 8 states have (on average 128.625) internal successors, (1029), 8 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:39,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 08:51:39,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:40,168 INFO L130 PetriNetUnfolder]: 933/2814 cut-off events. [2023-08-30 08:51:40,168 INFO L131 PetriNetUnfolder]: For 61587/61594 co-relation queries the response was YES. [2023-08-30 08:51:40,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19931 conditions, 2814 events. 933/2814 cut-off events. For 61587/61594 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 27304 event pairs, 379 based on Foata normal form. 18/2811 useless extension candidates. Maximal degree in co-relation 19835. Up to 1444 conditions per place. [2023-08-30 08:51:40,190 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 283 selfloop transitions, 112 changer transitions 3/445 dead transitions. [2023-08-30 08:51:40,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 445 transitions, 11163 flow [2023-08-30 08:51:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:51:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:51:40,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1209 transitions. [2023-08-30 08:51:40,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5012437810945274 [2023-08-30 08:51:40,192 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1209 transitions. [2023-08-30 08:51:40,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1209 transitions. [2023-08-30 08:51:40,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:40,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1209 transitions. [2023-08-30 08:51:40,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 134.33333333333334) internal successors, (1209), 9 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,202 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,202 INFO L175 Difference]: Start difference. First operand has 281 places, 415 transitions, 10095 flow. Second operand 9 states and 1209 transitions. [2023-08-30 08:51:40,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 445 transitions, 11163 flow [2023-08-30 08:51:40,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 445 transitions, 11087 flow, removed 30 selfloop flow, removed 4 redundant places. [2023-08-30 08:51:40,461 INFO L231 Difference]: Finished difference. Result has 287 places, 410 transitions, 10240 flow [2023-08-30 08:51:40,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9847, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10240, PETRI_PLACES=287, PETRI_TRANSITIONS=410} [2023-08-30 08:51:40,461 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 249 predicate places. [2023-08-30 08:51:40,462 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 410 transitions, 10240 flow [2023-08-30 08:51:40,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 128.625) internal successors, (1029), 8 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:40,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:40,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 08:51:40,462 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:40,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:40,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1437404250, now seen corresponding path program 3 times [2023-08-30 08:51:40,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:40,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890361842] [2023-08-30 08:51:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:40,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:41,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:41,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890361842] [2023-08-30 08:51:41,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890361842] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:41,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:41,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:41,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657475828] [2023-08-30 08:51:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:41,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:41,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:41,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:41,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:41,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 410 transitions, 10240 flow. Second operand has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:41,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:41,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:42,444 INFO L130 PetriNetUnfolder]: 970/2861 cut-off events. [2023-08-30 08:51:42,444 INFO L131 PetriNetUnfolder]: For 65267/65267 co-relation queries the response was YES. [2023-08-30 08:51:42,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20365 conditions, 2861 events. 970/2861 cut-off events. For 65267/65267 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 27446 event pairs, 387 based on Foata normal form. 2/2863 useless extension candidates. Maximal degree in co-relation 20267. Up to 1312 conditions per place. [2023-08-30 08:51:42,465 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 277 selfloop transitions, 181 changer transitions 3/463 dead transitions. [2023-08-30 08:51:42,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 463 transitions, 12005 flow [2023-08-30 08:51:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1717 transitions. [2023-08-30 08:51:42,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4576226012793177 [2023-08-30 08:51:42,466 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1717 transitions. [2023-08-30 08:51:42,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1717 transitions. [2023-08-30 08:51:42,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:42,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1717 transitions. [2023-08-30 08:51:42,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 122.64285714285714) internal successors, (1717), 14 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:42,470 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:42,470 INFO L175 Difference]: Start difference. First operand has 287 places, 410 transitions, 10240 flow. Second operand 14 states and 1717 transitions. [2023-08-30 08:51:42,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 463 transitions, 12005 flow [2023-08-30 08:51:42,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 463 transitions, 11628 flow, removed 100 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:42,764 INFO L231 Difference]: Finished difference. Result has 294 places, 408 transitions, 10276 flow [2023-08-30 08:51:42,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9858, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10276, PETRI_PLACES=294, PETRI_TRANSITIONS=408} [2023-08-30 08:51:42,764 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 256 predicate places. [2023-08-30 08:51:42,764 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 408 transitions, 10276 flow [2023-08-30 08:51:42,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:42,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:42,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 08:51:42,765 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:42,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:42,765 INFO L85 PathProgramCache]: Analyzing trace with hash -791552034, now seen corresponding path program 1 times [2023-08-30 08:51:42,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:42,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019722679] [2023-08-30 08:51:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:42,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:43,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:43,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:43,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019722679] [2023-08-30 08:51:43,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019722679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:43,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:43,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:43,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354028786] [2023-08-30 08:51:43,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:43,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:43,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:43,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 268 [2023-08-30 08:51:43,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 408 transitions, 10276 flow. Second operand has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:43,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:43,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 268 [2023-08-30 08:51:43,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:44,917 INFO L130 PetriNetUnfolder]: 976/2858 cut-off events. [2023-08-30 08:51:44,917 INFO L131 PetriNetUnfolder]: For 62458/62458 co-relation queries the response was YES. [2023-08-30 08:51:44,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20319 conditions, 2858 events. 976/2858 cut-off events. For 62458/62458 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 27259 event pairs, 514 based on Foata normal form. 2/2860 useless extension candidates. Maximal degree in co-relation 20223. Up to 2518 conditions per place. [2023-08-30 08:51:44,939 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 341 selfloop transitions, 80 changer transitions 8/431 dead transitions. [2023-08-30 08:51:44,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 431 transitions, 11538 flow [2023-08-30 08:51:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:44,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1689 transitions. [2023-08-30 08:51:44,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4501599147121535 [2023-08-30 08:51:44,941 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1689 transitions. [2023-08-30 08:51:44,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1689 transitions. [2023-08-30 08:51:44,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:44,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1689 transitions. [2023-08-30 08:51:44,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 120.64285714285714) internal successors, (1689), 14 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:44,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:44,949 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:44,949 INFO L175 Difference]: Start difference. First operand has 294 places, 408 transitions, 10276 flow. Second operand 14 states and 1689 transitions. [2023-08-30 08:51:44,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 431 transitions, 11538 flow [2023-08-30 08:51:45,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 431 transitions, 11227 flow, removed 11 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:45,177 INFO L231 Difference]: Finished difference. Result has 298 places, 408 transitions, 10247 flow [2023-08-30 08:51:45,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9978, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10247, PETRI_PLACES=298, PETRI_TRANSITIONS=408} [2023-08-30 08:51:45,178 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 260 predicate places. [2023-08-30 08:51:45,178 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 408 transitions, 10247 flow [2023-08-30 08:51:45,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:45,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:45,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:45,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 08:51:45,179 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:45,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2022476476, now seen corresponding path program 2 times [2023-08-30 08:51:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:45,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992655408] [2023-08-30 08:51:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:45,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:45,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:45,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:45,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992655408] [2023-08-30 08:51:45,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992655408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:45,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:45,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:45,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505333403] [2023-08-30 08:51:45,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:45,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:45,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:45,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:45,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:46,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:46,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 408 transitions, 10247 flow. Second operand has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:46,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:46,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:46,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:47,057 INFO L130 PetriNetUnfolder]: 981/2895 cut-off events. [2023-08-30 08:51:47,058 INFO L131 PetriNetUnfolder]: For 61107/61107 co-relation queries the response was YES. [2023-08-30 08:51:47,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20380 conditions, 2895 events. 981/2895 cut-off events. For 61107/61107 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 27806 event pairs, 508 based on Foata normal form. 7/2902 useless extension candidates. Maximal degree in co-relation 20282. Up to 2439 conditions per place. [2023-08-30 08:51:47,077 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 339 selfloop transitions, 90 changer transitions 6/437 dead transitions. [2023-08-30 08:51:47,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 437 transitions, 11493 flow [2023-08-30 08:51:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:47,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1834 transitions. [2023-08-30 08:51:47,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4562189054726368 [2023-08-30 08:51:47,079 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1834 transitions. [2023-08-30 08:51:47,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1834 transitions. [2023-08-30 08:51:47,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:47,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1834 transitions. [2023-08-30 08:51:47,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 122.26666666666667) internal successors, (1834), 15 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,083 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,083 INFO L175 Difference]: Start difference. First operand has 298 places, 408 transitions, 10247 flow. Second operand 15 states and 1834 transitions. [2023-08-30 08:51:47,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 437 transitions, 11493 flow [2023-08-30 08:51:47,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 437 transitions, 11124 flow, removed 30 selfloop flow, removed 21 redundant places. [2023-08-30 08:51:47,310 INFO L231 Difference]: Finished difference. Result has 295 places, 409 transitions, 10169 flow [2023-08-30 08:51:47,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9887, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10169, PETRI_PLACES=295, PETRI_TRANSITIONS=409} [2023-08-30 08:51:47,311 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 257 predicate places. [2023-08-30 08:51:47,311 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 409 transitions, 10169 flow [2023-08-30 08:51:47,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:47,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:47,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 08:51:47,312 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:47,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2022101686, now seen corresponding path program 3 times [2023-08-30 08:51:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:47,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118043830] [2023-08-30 08:51:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:47,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118043830] [2023-08-30 08:51:47,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118043830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:47,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:47,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146974356] [2023-08-30 08:51:47,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:47,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:47,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:47,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:48,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 08:51:48,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 409 transitions, 10169 flow. Second operand has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:48,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:48,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 08:51:48,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:49,265 INFO L130 PetriNetUnfolder]: 977/2866 cut-off events. [2023-08-30 08:51:49,266 INFO L131 PetriNetUnfolder]: For 60144/60144 co-relation queries the response was YES. [2023-08-30 08:51:49,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20030 conditions, 2866 events. 977/2866 cut-off events. For 60144/60144 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 27377 event pairs, 505 based on Foata normal form. 1/2867 useless extension candidates. Maximal degree in co-relation 19936. Up to 2439 conditions per place. [2023-08-30 08:51:49,285 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 341 selfloop transitions, 75 changer transitions 8/426 dead transitions. [2023-08-30 08:51:49,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 426 transitions, 11183 flow [2023-08-30 08:51:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1705 transitions. [2023-08-30 08:51:49,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4544243070362473 [2023-08-30 08:51:49,287 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1705 transitions. [2023-08-30 08:51:49,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1705 transitions. [2023-08-30 08:51:49,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:49,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1705 transitions. [2023-08-30 08:51:49,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 121.78571428571429) internal successors, (1705), 14 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:49,292 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:51:49,292 INFO L175 Difference]: Start difference. First operand has 295 places, 409 transitions, 10169 flow. Second operand 14 states and 1705 transitions. [2023-08-30 08:51:49,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 426 transitions, 11183 flow [2023-08-30 08:51:49,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 426 transitions, 10928 flow, removed 9 selfloop flow, removed 13 redundant places. [2023-08-30 08:51:49,509 INFO L231 Difference]: Finished difference. Result has 295 places, 402 transitions, 9934 flow [2023-08-30 08:51:49,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9892, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9934, PETRI_PLACES=295, PETRI_TRANSITIONS=402} [2023-08-30 08:51:49,510 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 257 predicate places. [2023-08-30 08:51:49,510 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 402 transitions, 9934 flow [2023-08-30 08:51:49,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.08333333333333) internal successors, (1417), 12 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:49,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:49,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 08:51:49,511 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:49,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:49,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1623289245, now seen corresponding path program 1 times [2023-08-30 08:51:49,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:49,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134806332] [2023-08-30 08:51:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:49,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:49,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134806332] [2023-08-30 08:51:49,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134806332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:49,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:49,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:49,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313018624] [2023-08-30 08:51:49,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:49,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:49,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:49,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:50,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 268 [2023-08-30 08:51:50,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 402 transitions, 9934 flow. Second operand has 12 states, 12 states have (on average 116.16666666666667) internal successors, (1394), 12 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:50,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:50,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 268 [2023-08-30 08:51:50,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:51,787 INFO L130 PetriNetUnfolder]: 967/2864 cut-off events. [2023-08-30 08:51:51,787 INFO L131 PetriNetUnfolder]: For 58758/58758 co-relation queries the response was YES. [2023-08-30 08:51:51,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19886 conditions, 2864 events. 967/2864 cut-off events. For 58758/58758 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 27569 event pairs, 275 based on Foata normal form. 3/2867 useless extension candidates. Maximal degree in co-relation 19795. Up to 1554 conditions per place. [2023-08-30 08:51:51,806 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 342 selfloop transitions, 96 changer transitions 19/459 dead transitions. [2023-08-30 08:51:51,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 459 transitions, 11558 flow [2023-08-30 08:51:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:51:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:51:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2147 transitions. [2023-08-30 08:51:51,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4450663349917081 [2023-08-30 08:51:51,808 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2147 transitions. [2023-08-30 08:51:51,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2147 transitions. [2023-08-30 08:51:51,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:51,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2147 transitions. [2023-08-30 08:51:51,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.27777777777777) internal successors, (2147), 18 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 268.0) internal successors, (5092), 19 states have internal predecessors, (5092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,812 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 268.0) internal successors, (5092), 19 states have internal predecessors, (5092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,812 INFO L175 Difference]: Start difference. First operand has 295 places, 402 transitions, 9934 flow. Second operand 18 states and 2147 transitions. [2023-08-30 08:51:51,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 459 transitions, 11558 flow [2023-08-30 08:51:52,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 459 transitions, 11242 flow, removed 29 selfloop flow, removed 14 redundant places. [2023-08-30 08:51:52,018 INFO L231 Difference]: Finished difference. Result has 300 places, 410 transitions, 10044 flow [2023-08-30 08:51:52,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9632, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10044, PETRI_PLACES=300, PETRI_TRANSITIONS=410} [2023-08-30 08:51:52,018 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 262 predicate places. [2023-08-30 08:51:52,018 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 410 transitions, 10044 flow [2023-08-30 08:51:52,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 116.16666666666667) internal successors, (1394), 12 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:52,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:52,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:52,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 08:51:52,019 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:52,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1024114151, now seen corresponding path program 1 times [2023-08-30 08:51:52,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:52,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12143858] [2023-08-30 08:51:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:52,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:52,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12143858] [2023-08-30 08:51:52,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12143858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:52,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:52,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:52,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239720942] [2023-08-30 08:51:52,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:52,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:52,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:53,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 08:51:53,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 410 transitions, 10044 flow. Second operand has 13 states, 13 states have (on average 115.07692307692308) internal successors, (1496), 13 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:53,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:53,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 08:51:53,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:54,474 INFO L130 PetriNetUnfolder]: 953/2834 cut-off events. [2023-08-30 08:51:54,474 INFO L131 PetriNetUnfolder]: For 61063/61063 co-relation queries the response was YES. [2023-08-30 08:51:54,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20057 conditions, 2834 events. 953/2834 cut-off events. For 61063/61063 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 27154 event pairs, 388 based on Foata normal form. 4/2838 useless extension candidates. Maximal degree in co-relation 19963. Up to 1767 conditions per place. [2023-08-30 08:51:54,495 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 269 selfloop transitions, 175 changer transitions 6/452 dead transitions. [2023-08-30 08:51:54,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 452 transitions, 11394 flow [2023-08-30 08:51:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 08:51:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 08:51:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2492 transitions. [2023-08-30 08:51:54,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427860696517413 [2023-08-30 08:51:54,497 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2492 transitions. [2023-08-30 08:51:54,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2492 transitions. [2023-08-30 08:51:54,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:54,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2492 transitions. [2023-08-30 08:51:54,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 118.66666666666667) internal successors, (2492), 21 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:54,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 268.0) internal successors, (5896), 22 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:54,501 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 268.0) internal successors, (5896), 22 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:54,501 INFO L175 Difference]: Start difference. First operand has 300 places, 410 transitions, 10044 flow. Second operand 21 states and 2492 transitions. [2023-08-30 08:51:54,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 452 transitions, 11394 flow [2023-08-30 08:51:54,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 452 transitions, 11181 flow, removed 25 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:54,705 INFO L231 Difference]: Finished difference. Result has 312 places, 412 transitions, 10285 flow [2023-08-30 08:51:54,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9786, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10285, PETRI_PLACES=312, PETRI_TRANSITIONS=412} [2023-08-30 08:51:54,705 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 274 predicate places. [2023-08-30 08:51:54,705 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 412 transitions, 10285 flow [2023-08-30 08:51:54,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.07692307692308) internal successors, (1496), 13 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:54,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:54,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:54,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 08:51:54,706 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:54,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:54,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1623289244, now seen corresponding path program 1 times [2023-08-30 08:51:54,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:54,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70071141] [2023-08-30 08:51:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:54,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:55,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:55,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70071141] [2023-08-30 08:51:55,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70071141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:55,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:55,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:55,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479050031] [2023-08-30 08:51:55,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:55,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:55,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:55,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:55,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:55,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 268 [2023-08-30 08:51:55,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 412 transitions, 10285 flow. Second operand has 12 states, 12 states have (on average 114.16666666666667) internal successors, (1370), 12 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:55,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:55,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 268 [2023-08-30 08:51:55,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:56,645 INFO L130 PetriNetUnfolder]: 952/2821 cut-off events. [2023-08-30 08:51:56,645 INFO L131 PetriNetUnfolder]: For 61222/61222 co-relation queries the response was YES. [2023-08-30 08:51:56,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20134 conditions, 2821 events. 952/2821 cut-off events. For 61222/61222 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 27125 event pairs, 278 based on Foata normal form. 4/2825 useless extension candidates. Maximal degree in co-relation 20039. Up to 1509 conditions per place. [2023-08-30 08:51:56,663 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 329 selfloop transitions, 96 changer transitions 25/452 dead transitions. [2023-08-30 08:51:56,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 452 transitions, 11523 flow [2023-08-30 08:51:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:51:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:51:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1886 transitions. [2023-08-30 08:51:56,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398320895522388 [2023-08-30 08:51:56,665 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1886 transitions. [2023-08-30 08:51:56,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1886 transitions. [2023-08-30 08:51:56,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:56,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1886 transitions. [2023-08-30 08:51:56,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.875) internal successors, (1886), 16 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) [2023-08-30 08:51:56,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 268.0) internal successors, (4556), 17 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:56,668 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 268.0) internal successors, (4556), 17 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:56,668 INFO L175 Difference]: Start difference. First operand has 312 places, 412 transitions, 10285 flow. Second operand 16 states and 1886 transitions. [2023-08-30 08:51:56,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 452 transitions, 11523 flow [2023-08-30 08:51:56,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 452 transitions, 11231 flow, removed 38 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:56,873 INFO L231 Difference]: Finished difference. Result has 316 places, 404 transitions, 10038 flow [2023-08-30 08:51:56,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9970, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10038, PETRI_PLACES=316, PETRI_TRANSITIONS=404} [2023-08-30 08:51:56,874 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 278 predicate places. [2023-08-30 08:51:56,874 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 404 transitions, 10038 flow [2023-08-30 08:51:56,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 114.16666666666667) internal successors, (1370), 12 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:56,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:56,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:56,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 08:51:56,875 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:56,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1824696442, now seen corresponding path program 2 times [2023-08-30 08:51:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:56,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815374483] [2023-08-30 08:51:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:57,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:57,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815374483] [2023-08-30 08:51:57,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815374483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:57,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:57,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:51:57,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823166819] [2023-08-30 08:51:57,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:57,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:51:57,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:51:57,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:51:57,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 08:51:57,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 404 transitions, 10038 flow. Second operand has 8 states, 8 states have (on average 128.625) internal successors, (1029), 8 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:57,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:57,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 08:51:57,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:58,052 INFO L130 PetriNetUnfolder]: 865/2606 cut-off events. [2023-08-30 08:51:58,052 INFO L131 PetriNetUnfolder]: For 56918/56925 co-relation queries the response was YES. [2023-08-30 08:51:58,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18863 conditions, 2606 events. 865/2606 cut-off events. For 56918/56925 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 24941 event pairs, 228 based on Foata normal form. 9/2599 useless extension candidates. Maximal degree in co-relation 18768. Up to 1116 conditions per place. [2023-08-30 08:51:58,067 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 137 selfloop transitions, 233 changer transitions 15/428 dead transitions. [2023-08-30 08:51:58,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 428 transitions, 10973 flow [2023-08-30 08:51:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1329 transitions. [2023-08-30 08:51:58,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49589552238805973 [2023-08-30 08:51:58,068 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1329 transitions. [2023-08-30 08:51:58,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1329 transitions. [2023-08-30 08:51:58,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:58,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1329 transitions. [2023-08-30 08:51:58,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.9) internal successors, (1329), 10 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:58,071 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:51:58,071 INFO L175 Difference]: Start difference. First operand has 316 places, 404 transitions, 10038 flow. Second operand 10 states and 1329 transitions. [2023-08-30 08:51:58,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 428 transitions, 10973 flow [2023-08-30 08:51:58,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 428 transitions, 10656 flow, removed 6 selfloop flow, removed 16 redundant places. [2023-08-30 08:51:58,242 INFO L231 Difference]: Finished difference. Result has 292 places, 386 transitions, 9881 flow [2023-08-30 08:51:58,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9653, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9881, PETRI_PLACES=292, PETRI_TRANSITIONS=386} [2023-08-30 08:51:58,242 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 254 predicate places. [2023-08-30 08:51:58,243 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 386 transitions, 9881 flow [2023-08-30 08:51:58,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 128.625) internal successors, (1029), 8 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:58,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:58,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-30 08:51:58,243 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:58,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:58,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1584583207, now seen corresponding path program 2 times [2023-08-30 08:51:58,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:58,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057398194] [2023-08-30 08:51:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:58,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:58,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:58,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057398194] [2023-08-30 08:51:58,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057398194] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:58,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:58,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:58,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243422444] [2023-08-30 08:51:58,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:58,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:58,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:58,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:58,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:59,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 08:51:59,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 386 transitions, 9881 flow. Second operand has 13 states, 13 states have (on average 115.07692307692308) internal successors, (1496), 13 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:59,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:59,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 08:51:59,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:00,643 INFO L130 PetriNetUnfolder]: 913/2682 cut-off events. [2023-08-30 08:52:00,643 INFO L131 PetriNetUnfolder]: For 66398/66398 co-relation queries the response was YES. [2023-08-30 08:52:00,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20047 conditions, 2682 events. 913/2682 cut-off events. For 66398/66398 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 25168 event pairs, 356 based on Foata normal form. 20/2702 useless extension candidates. Maximal degree in co-relation 19958. Up to 1521 conditions per place. [2023-08-30 08:52:00,663 INFO L137 encePairwiseOnDemand]: 252/268 looper letters, 312 selfloop transitions, 138 changer transitions 4/456 dead transitions. [2023-08-30 08:52:00,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 456 transitions, 11843 flow [2023-08-30 08:52:00,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-30 08:52:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-30 08:52:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2721 transitions. [2023-08-30 08:52:00,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44143413367942896 [2023-08-30 08:52:00,665 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2721 transitions. [2023-08-30 08:52:00,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2721 transitions. [2023-08-30 08:52:00,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:00,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2721 transitions. [2023-08-30 08:52:00,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 118.30434782608695) internal successors, (2721), 23 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 268.0) internal successors, (6432), 24 states have internal predecessors, (6432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,671 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 268.0) internal successors, (6432), 24 states have internal predecessors, (6432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,671 INFO L175 Difference]: Start difference. First operand has 292 places, 386 transitions, 9881 flow. Second operand 23 states and 2721 transitions. [2023-08-30 08:52:00,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 456 transitions, 11843 flow [2023-08-30 08:52:00,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 456 transitions, 11416 flow, removed 33 selfloop flow, removed 14 redundant places. [2023-08-30 08:52:00,885 INFO L231 Difference]: Finished difference. Result has 294 places, 402 transitions, 10346 flow [2023-08-30 08:52:00,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9307, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=10346, PETRI_PLACES=294, PETRI_TRANSITIONS=402} [2023-08-30 08:52:00,885 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 256 predicate places. [2023-08-30 08:52:00,885 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 402 transitions, 10346 flow [2023-08-30 08:52:00,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.07692307692308) internal successors, (1496), 13 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:00,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:00,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-30 08:52:00,886 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:00,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash 607167147, now seen corresponding path program 2 times [2023-08-30 08:52:00,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:00,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830289317] [2023-08-30 08:52:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:01,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:01,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:01,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830289317] [2023-08-30 08:52:01,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830289317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:01,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:01,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:52:01,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695911472] [2023-08-30 08:52:01,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:01,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:52:01,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:01,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:52:01,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:52:01,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 268 [2023-08-30 08:52:01,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 402 transitions, 10346 flow. Second operand has 12 states, 12 states have (on average 116.16666666666667) internal successors, (1394), 12 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:01,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:01,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 268 [2023-08-30 08:52:01,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:03,090 INFO L130 PetriNetUnfolder]: 905/2800 cut-off events. [2023-08-30 08:52:03,090 INFO L131 PetriNetUnfolder]: For 65920/65920 co-relation queries the response was YES. [2023-08-30 08:52:03,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20960 conditions, 2800 events. 905/2800 cut-off events. For 65920/65920 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 27483 event pairs, 93 based on Foata normal form. 3/2803 useless extension candidates. Maximal degree in co-relation 20874. Up to 603 conditions per place. [2023-08-30 08:52:03,110 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 146 selfloop transitions, 268 changer transitions 76/492 dead transitions. [2023-08-30 08:52:03,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 492 transitions, 13047 flow [2023-08-30 08:52:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:52:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:52:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1932 transitions. [2023-08-30 08:52:03,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4505597014925373 [2023-08-30 08:52:03,112 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1932 transitions. [2023-08-30 08:52:03,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1932 transitions. [2023-08-30 08:52:03,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:03,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1932 transitions. [2023-08-30 08:52:03,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 120.75) internal successors, (1932), 16 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) [2023-08-30 08:52:03,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 268.0) internal successors, (4556), 17 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:03,115 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 268.0) internal successors, (4556), 17 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:03,115 INFO L175 Difference]: Start difference. First operand has 294 places, 402 transitions, 10346 flow. Second operand 16 states and 1932 transitions. [2023-08-30 08:52:03,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 492 transitions, 13047 flow [2023-08-30 08:52:03,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 492 transitions, 12814 flow, removed 31 selfloop flow, removed 12 redundant places. [2023-08-30 08:52:03,320 INFO L231 Difference]: Finished difference. Result has 301 places, 396 transitions, 10774 flow [2023-08-30 08:52:03,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=10131, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10774, PETRI_PLACES=301, PETRI_TRANSITIONS=396} [2023-08-30 08:52:03,320 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 263 predicate places. [2023-08-30 08:52:03,321 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 396 transitions, 10774 flow [2023-08-30 08:52:03,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 116.16666666666667) internal successors, (1394), 12 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:03,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:03,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:03,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-30 08:52:03,321 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:03,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash 420040349, now seen corresponding path program 3 times [2023-08-30 08:52:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:03,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791617153] [2023-08-30 08:52:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:03,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:03,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791617153] [2023-08-30 08:52:03,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791617153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:03,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:03,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004740639] [2023-08-30 08:52:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:03,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:03,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:03,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:04,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 08:52:04,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 396 transitions, 10774 flow. Second operand has 13 states, 13 states have (on average 115.07692307692308) internal successors, (1496), 13 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:04,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:04,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 08:52:04,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:05,424 INFO L130 PetriNetUnfolder]: 734/2390 cut-off events. [2023-08-30 08:52:05,424 INFO L131 PetriNetUnfolder]: For 68656/68656 co-relation queries the response was YES. [2023-08-30 08:52:05,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19540 conditions, 2390 events. 734/2390 cut-off events. For 68656/68656 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 23039 event pairs, 296 based on Foata normal form. 3/2393 useless extension candidates. Maximal degree in co-relation 19451. Up to 1883 conditions per place. [2023-08-30 08:52:05,442 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 322 selfloop transitions, 89 changer transitions 18/431 dead transitions. [2023-08-30 08:52:05,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 431 transitions, 12070 flow [2023-08-30 08:52:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:52:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:52:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2011 transitions. [2023-08-30 08:52:05,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4413959613696225 [2023-08-30 08:52:05,443 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2011 transitions. [2023-08-30 08:52:05,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2011 transitions. [2023-08-30 08:52:05,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:05,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2011 transitions. [2023-08-30 08:52:05,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 118.29411764705883) internal successors, (2011), 17 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:05,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 268.0) internal successors, (4824), 18 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:05,447 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 268.0) internal successors, (4824), 18 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:05,447 INFO L175 Difference]: Start difference. First operand has 301 places, 396 transitions, 10774 flow. Second operand 17 states and 2011 transitions. [2023-08-30 08:52:05,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 431 transitions, 12070 flow [2023-08-30 08:52:05,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 431 transitions, 11659 flow, removed 58 selfloop flow, removed 13 redundant places. [2023-08-30 08:52:05,651 INFO L231 Difference]: Finished difference. Result has 293 places, 387 transitions, 10434 flow [2023-08-30 08:52:05,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=10359, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10434, PETRI_PLACES=293, PETRI_TRANSITIONS=387} [2023-08-30 08:52:05,653 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 255 predicate places. [2023-08-30 08:52:05,653 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 387 transitions, 10434 flow [2023-08-30 08:52:05,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.07692307692308) internal successors, (1496), 13 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:05,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:05,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:05,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-30 08:52:05,654 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:05,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash 196979667, now seen corresponding path program 3 times [2023-08-30 08:52:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090821374] [2023-08-30 08:52:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:06,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090821374] [2023-08-30 08:52:06,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090821374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:06,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:06,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:52:06,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44751964] [2023-08-30 08:52:06,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:06,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:52:06,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:06,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:52:06,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:52:06,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 08:52:06,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 387 transitions, 10434 flow. Second operand has 12 states, 12 states have (on average 115.16666666666667) internal successors, (1382), 12 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:06,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:06,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 08:52:06,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:07,656 INFO L130 PetriNetUnfolder]: 590/1909 cut-off events. [2023-08-30 08:52:07,657 INFO L131 PetriNetUnfolder]: For 54694/54694 co-relation queries the response was YES. [2023-08-30 08:52:07,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15815 conditions, 1909 events. 590/1909 cut-off events. For 54694/54694 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 17520 event pairs, 42 based on Foata normal form. 4/1913 useless extension candidates. Maximal degree in co-relation 15729. Up to 635 conditions per place. [2023-08-30 08:52:07,672 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 150 selfloop transitions, 270 changer transitions 0/422 dead transitions. [2023-08-30 08:52:07,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 422 transitions, 11526 flow [2023-08-30 08:52:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:52:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:52:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2139 transitions. [2023-08-30 08:52:07,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44340796019900497 [2023-08-30 08:52:07,674 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2139 transitions. [2023-08-30 08:52:07,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2139 transitions. [2023-08-30 08:52:07,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:07,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2139 transitions. [2023-08-30 08:52:07,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 118.83333333333333) internal successors, (2139), 18 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 268.0) internal successors, (5092), 19 states have internal predecessors, (5092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,678 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 268.0) internal successors, (5092), 19 states have internal predecessors, (5092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,678 INFO L175 Difference]: Start difference. First operand has 293 places, 387 transitions, 10434 flow. Second operand 18 states and 2139 transitions. [2023-08-30 08:52:07,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 422 transitions, 11526 flow [2023-08-30 08:52:07,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 422 transitions, 10812 flow, removed 20 selfloop flow, removed 21 redundant places. [2023-08-30 08:52:07,855 INFO L231 Difference]: Finished difference. Result has 281 places, 393 transitions, 10387 flow [2023-08-30 08:52:07,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9672, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10387, PETRI_PLACES=281, PETRI_TRANSITIONS=393} [2023-08-30 08:52:07,855 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 243 predicate places. [2023-08-30 08:52:07,855 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 393 transitions, 10387 flow [2023-08-30 08:52:07,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.16666666666667) internal successors, (1382), 12 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:07,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:07,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-30 08:52:07,856 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:07,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:07,857 INFO L85 PathProgramCache]: Analyzing trace with hash 867886973, now seen corresponding path program 1 times [2023-08-30 08:52:07,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:07,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325424528] [2023-08-30 08:52:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:07,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:08,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325424528] [2023-08-30 08:52:08,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325424528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:08,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:08,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:52:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030289495] [2023-08-30 08:52:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:08,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:52:08,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:52:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:52:08,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 08:52:08,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 393 transitions, 10387 flow. Second operand has 8 states, 8 states have (on average 120.25) internal successors, (962), 8 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:08,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:08,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 08:52:08,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:09,217 INFO L130 PetriNetUnfolder]: 596/2023 cut-off events. [2023-08-30 08:52:09,217 INFO L131 PetriNetUnfolder]: For 54355/54382 co-relation queries the response was YES. [2023-08-30 08:52:09,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17055 conditions, 2023 events. 596/2023 cut-off events. For 54355/54382 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 19360 event pairs, 242 based on Foata normal form. 51/2069 useless extension candidates. Maximal degree in co-relation 16972. Up to 1225 conditions per place. [2023-08-30 08:52:09,235 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 351 selfloop transitions, 54 changer transitions 18/460 dead transitions. [2023-08-30 08:52:09,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 460 transitions, 12604 flow [2023-08-30 08:52:09,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 870 transitions. [2023-08-30 08:52:09,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46375266524520253 [2023-08-30 08:52:09,237 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 870 transitions. [2023-08-30 08:52:09,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 870 transitions. [2023-08-30 08:52:09,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:09,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 870 transitions. [2023-08-30 08:52:09,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 124.28571428571429) internal successors, (870), 7 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:09,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:09,240 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:09,241 INFO L175 Difference]: Start difference. First operand has 281 places, 393 transitions, 10387 flow. Second operand 7 states and 870 transitions. [2023-08-30 08:52:09,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 460 transitions, 12604 flow [2023-08-30 08:52:09,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 460 transitions, 11714 flow, removed 100 selfloop flow, removed 12 redundant places. [2023-08-30 08:52:09,470 INFO L231 Difference]: Finished difference. Result has 277 places, 398 transitions, 9962 flow [2023-08-30 08:52:09,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9604, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9962, PETRI_PLACES=277, PETRI_TRANSITIONS=398} [2023-08-30 08:52:09,470 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 239 predicate places. [2023-08-30 08:52:09,471 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 398 transitions, 9962 flow [2023-08-30 08:52:09,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 120.25) internal successors, (962), 8 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:09,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:09,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:09,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-30 08:52:09,471 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:09,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:09,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1247367455, now seen corresponding path program 2 times [2023-08-30 08:52:09,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:09,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503684799] [2023-08-30 08:52:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:09,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:10,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:10,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503684799] [2023-08-30 08:52:10,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503684799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:10,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:10,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:10,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92333593] [2023-08-30 08:52:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:10,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:10,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:10,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 08:52:10,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 398 transitions, 9962 flow. Second operand has 14 states, 14 states have (on average 112.28571428571429) internal successors, (1572), 14 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:10,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 08:52:10,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:12,105 INFO L130 PetriNetUnfolder]: 579/2067 cut-off events. [2023-08-30 08:52:12,105 INFO L131 PetriNetUnfolder]: For 47828/47828 co-relation queries the response was YES. [2023-08-30 08:52:12,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16426 conditions, 2067 events. 579/2067 cut-off events. For 47828/47828 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 20019 event pairs, 123 based on Foata normal form. 10/2077 useless extension candidates. Maximal degree in co-relation 16346. Up to 672 conditions per place. [2023-08-30 08:52:12,120 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 340 selfloop transitions, 139 changer transitions 0/481 dead transitions. [2023-08-30 08:52:12,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 481 transitions, 12172 flow [2023-08-30 08:52:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 08:52:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 08:52:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2209 transitions. [2023-08-30 08:52:12,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4338177533385703 [2023-08-30 08:52:12,122 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2209 transitions. [2023-08-30 08:52:12,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2209 transitions. [2023-08-30 08:52:12,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:12,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2209 transitions. [2023-08-30 08:52:12,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 116.26315789473684) internal successors, (2209), 19 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:12,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 268.0) internal successors, (5360), 20 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:12,128 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 268.0) internal successors, (5360), 20 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:12,128 INFO L175 Difference]: Start difference. First operand has 277 places, 398 transitions, 9962 flow. Second operand 19 states and 2209 transitions. [2023-08-30 08:52:12,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 481 transitions, 12172 flow [2023-08-30 08:52:12,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 481 transitions, 12002 flow, removed 54 selfloop flow, removed 6 redundant places. [2023-08-30 08:52:12,317 INFO L231 Difference]: Finished difference. Result has 296 places, 437 transitions, 11098 flow [2023-08-30 08:52:12,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9792, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11098, PETRI_PLACES=296, PETRI_TRANSITIONS=437} [2023-08-30 08:52:12,318 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 258 predicate places. [2023-08-30 08:52:12,318 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 437 transitions, 11098 flow [2023-08-30 08:52:12,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.28571428571429) internal successors, (1572), 14 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:12,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:12,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:12,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-30 08:52:12,319 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:12,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:12,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2041406568, now seen corresponding path program 1 times [2023-08-30 08:52:12,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:12,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594079530] [2023-08-30 08:52:12,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:12,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:12,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594079530] [2023-08-30 08:52:12,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594079530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:12,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:12,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:52:12,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891606302] [2023-08-30 08:52:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:12,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:52:12,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:52:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:52:12,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 08:52:12,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 437 transitions, 11098 flow. Second operand has 8 states, 8 states have (on average 120.25) internal successors, (962), 8 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:12,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:12,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 08:52:12,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:13,269 INFO L130 PetriNetUnfolder]: 516/1926 cut-off events. [2023-08-30 08:52:13,270 INFO L131 PetriNetUnfolder]: For 52037/52046 co-relation queries the response was YES. [2023-08-30 08:52:13,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16550 conditions, 1926 events. 516/1926 cut-off events. For 52037/52046 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 18695 event pairs, 215 based on Foata normal form. 26/1949 useless extension candidates. Maximal degree in co-relation 16464. Up to 1371 conditions per place. [2023-08-30 08:52:13,285 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 354 selfloop transitions, 53 changer transitions 9/452 dead transitions. [2023-08-30 08:52:13,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 452 transitions, 12114 flow [2023-08-30 08:52:13,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:13,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 867 transitions. [2023-08-30 08:52:13,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4621535181236674 [2023-08-30 08:52:13,286 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 867 transitions. [2023-08-30 08:52:13,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 867 transitions. [2023-08-30 08:52:13,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:13,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 867 transitions. [2023-08-30 08:52:13,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,288 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,288 INFO L175 Difference]: Start difference. First operand has 296 places, 437 transitions, 11098 flow. Second operand 7 states and 867 transitions. [2023-08-30 08:52:13,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 452 transitions, 12114 flow [2023-08-30 08:52:13,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 452 transitions, 11978 flow, removed 47 selfloop flow, removed 5 redundant places. [2023-08-30 08:52:13,490 INFO L231 Difference]: Finished difference. Result has 298 places, 428 transitions, 10930 flow [2023-08-30 08:52:13,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=10836, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10930, PETRI_PLACES=298, PETRI_TRANSITIONS=428} [2023-08-30 08:52:13,491 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 260 predicate places. [2023-08-30 08:52:13,491 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 428 transitions, 10930 flow [2023-08-30 08:52:13,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 120.25) internal successors, (962), 8 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:13,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:13,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-30 08:52:13,491 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:13,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:13,492 INFO L85 PathProgramCache]: Analyzing trace with hash 458713277, now seen corresponding path program 3 times [2023-08-30 08:52:13,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:13,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698678557] [2023-08-30 08:52:13,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:13,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:14,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698678557] [2023-08-30 08:52:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698678557] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:14,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:14,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:14,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722840933] [2023-08-30 08:52:14,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:14,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:14,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:14,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:14,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 08:52:14,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 428 transitions, 10930 flow. Second operand has 14 states, 14 states have (on average 111.28571428571429) internal successors, (1558), 14 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:14,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:14,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 08:52:14,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:15,643 INFO L130 PetriNetUnfolder]: 521/1932 cut-off events. [2023-08-30 08:52:15,643 INFO L131 PetriNetUnfolder]: For 51111/51111 co-relation queries the response was YES. [2023-08-30 08:52:15,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16693 conditions, 1932 events. 521/1932 cut-off events. For 51111/51111 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 18712 event pairs, 222 based on Foata normal form. 3/1935 useless extension candidates. Maximal degree in co-relation 16608. Up to 1454 conditions per place. [2023-08-30 08:52:15,659 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 350 selfloop transitions, 115 changer transitions 0/467 dead transitions. [2023-08-30 08:52:15,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 467 transitions, 12544 flow [2023-08-30 08:52:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:52:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:52:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1495 transitions. [2023-08-30 08:52:15,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291044776119403 [2023-08-30 08:52:15,661 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1495 transitions. [2023-08-30 08:52:15,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1495 transitions. [2023-08-30 08:52:15,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:15,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1495 transitions. [2023-08-30 08:52:15,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,664 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,664 INFO L175 Difference]: Start difference. First operand has 298 places, 428 transitions, 10930 flow. Second operand 13 states and 1495 transitions. [2023-08-30 08:52:15,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 467 transitions, 12544 flow [2023-08-30 08:52:15,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 467 transitions, 12364 flow, removed 23 selfloop flow, removed 6 redundant places. [2023-08-30 08:52:15,863 INFO L231 Difference]: Finished difference. Result has 307 places, 438 transitions, 11297 flow [2023-08-30 08:52:15,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=10750, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11297, PETRI_PLACES=307, PETRI_TRANSITIONS=438} [2023-08-30 08:52:15,863 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 269 predicate places. [2023-08-30 08:52:15,863 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 438 transitions, 11297 flow [2023-08-30 08:52:15,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.28571428571429) internal successors, (1558), 14 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:15,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:15,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-30 08:52:15,864 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:15,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:15,864 INFO L85 PathProgramCache]: Analyzing trace with hash -167914148, now seen corresponding path program 2 times [2023-08-30 08:52:15,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:15,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517241741] [2023-08-30 08:52:15,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:15,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:16,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:16,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517241741] [2023-08-30 08:52:16,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517241741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:16,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:16,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:52:16,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754468267] [2023-08-30 08:52:16,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:52:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:52:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:52:16,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 268 [2023-08-30 08:52:16,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 438 transitions, 11297 flow. Second operand has 11 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:16,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 268 [2023-08-30 08:52:16,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:17,354 INFO L130 PetriNetUnfolder]: 509/1976 cut-off events. [2023-08-30 08:52:17,354 INFO L131 PetriNetUnfolder]: For 52109/52109 co-relation queries the response was YES. [2023-08-30 08:52:17,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16958 conditions, 1976 events. 509/1976 cut-off events. For 52109/52109 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 19483 event pairs, 59 based on Foata normal form. 20/1996 useless extension candidates. Maximal degree in co-relation 16871. Up to 718 conditions per place. [2023-08-30 08:52:17,366 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 222 selfloop transitions, 121 changer transitions 111/456 dead transitions. [2023-08-30 08:52:17,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 456 transitions, 12330 flow [2023-08-30 08:52:17,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:52:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:52:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 954 transitions. [2023-08-30 08:52:17,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4449626865671642 [2023-08-30 08:52:17,367 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 954 transitions. [2023-08-30 08:52:17,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 954 transitions. [2023-08-30 08:52:17,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:17,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 954 transitions. [2023-08-30 08:52:17,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 119.25) internal successors, (954), 8 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,369 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,369 INFO L175 Difference]: Start difference. First operand has 307 places, 438 transitions, 11297 flow. Second operand 8 states and 954 transitions. [2023-08-30 08:52:17,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 456 transitions, 12330 flow [2023-08-30 08:52:17,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 456 transitions, 12109 flow, removed 27 selfloop flow, removed 6 redundant places. [2023-08-30 08:52:17,566 INFO L231 Difference]: Finished difference. Result has 310 places, 327 transitions, 8511 flow [2023-08-30 08:52:17,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=10847, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8511, PETRI_PLACES=310, PETRI_TRANSITIONS=327} [2023-08-30 08:52:17,566 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 272 predicate places. [2023-08-30 08:52:17,567 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 327 transitions, 8511 flow [2023-08-30 08:52:17,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:17,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:17,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-30 08:52:17,568 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:17,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:17,568 INFO L85 PathProgramCache]: Analyzing trace with hash 959333770, now seen corresponding path program 3 times [2023-08-30 08:52:17,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:17,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991812633] [2023-08-30 08:52:17,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:17,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:17,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:17,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991812633] [2023-08-30 08:52:17,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991812633] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:17,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:17,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:52:17,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027890390] [2023-08-30 08:52:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:17,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:52:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:52:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:52:18,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 268 [2023-08-30 08:52:18,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 327 transitions, 8511 flow. Second operand has 8 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:18,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:18,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 268 [2023-08-30 08:52:18,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:18,434 INFO L130 PetriNetUnfolder]: 276/1376 cut-off events. [2023-08-30 08:52:18,435 INFO L131 PetriNetUnfolder]: For 42913/42913 co-relation queries the response was YES. [2023-08-30 08:52:18,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12906 conditions, 1376 events. 276/1376 cut-off events. For 42913/42913 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13321 event pairs, 48 based on Foata normal form. 26/1402 useless extension candidates. Maximal degree in co-relation 12818. Up to 526 conditions per place. [2023-08-30 08:52:18,443 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 239 selfloop transitions, 123 changer transitions 0/393 dead transitions. [2023-08-30 08:52:18,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 393 transitions, 10847 flow [2023-08-30 08:52:18,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:18,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 897 transitions. [2023-08-30 08:52:18,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47814498933901917 [2023-08-30 08:52:18,445 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 897 transitions. [2023-08-30 08:52:18,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 897 transitions. [2023-08-30 08:52:18,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:18,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 897 transitions. [2023-08-30 08:52:18,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.14285714285714) internal successors, (897), 7 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:18,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:18,446 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:18,446 INFO L175 Difference]: Start difference. First operand has 310 places, 327 transitions, 8511 flow. Second operand 7 states and 897 transitions. [2023-08-30 08:52:18,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 393 transitions, 10847 flow [2023-08-30 08:52:18,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 393 transitions, 10239 flow, removed 156 selfloop flow, removed 12 redundant places. [2023-08-30 08:52:18,578 INFO L231 Difference]: Finished difference. Result has 299 places, 362 transitions, 9403 flow [2023-08-30 08:52:18,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=8019, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9403, PETRI_PLACES=299, PETRI_TRANSITIONS=362} [2023-08-30 08:52:18,578 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 261 predicate places. [2023-08-30 08:52:18,579 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 362 transitions, 9403 flow [2023-08-30 08:52:18,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:18,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:18,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:18,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-08-30 08:52:18,579 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:18,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:18,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1889595437, now seen corresponding path program 4 times [2023-08-30 08:52:18,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:18,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549033567] [2023-08-30 08:52:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:18,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:19,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:19,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549033567] [2023-08-30 08:52:19,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549033567] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:19,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:19,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 08:52:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807686463] [2023-08-30 08:52:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:19,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 08:52:19,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 08:52:19,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-08-30 08:52:20,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 08:52:20,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 362 transitions, 9403 flow. Second operand has 15 states, 15 states have (on average 111.2) internal successors, (1668), 15 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:20,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:20,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 08:52:20,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:20,636 INFO L130 PetriNetUnfolder]: 278/1389 cut-off events. [2023-08-30 08:52:20,636 INFO L131 PetriNetUnfolder]: For 40748/40748 co-relation queries the response was YES. [2023-08-30 08:52:20,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13126 conditions, 1389 events. 278/1389 cut-off events. For 40748/40748 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13450 event pairs, 102 based on Foata normal form. 2/1391 useless extension candidates. Maximal degree in co-relation 13041. Up to 1047 conditions per place. [2023-08-30 08:52:20,644 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 327 selfloop transitions, 67 changer transitions 0/396 dead transitions. [2023-08-30 08:52:20,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 396 transitions, 10693 flow [2023-08-30 08:52:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:52:20,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:52:20,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1611 transitions. [2023-08-30 08:52:20,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42937100213219614 [2023-08-30 08:52:20,646 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1611 transitions. [2023-08-30 08:52:20,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1611 transitions. [2023-08-30 08:52:20,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:20,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1611 transitions. [2023-08-30 08:52:20,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 115.07142857142857) internal successors, (1611), 14 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:20,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:52:20,649 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 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) [2023-08-30 08:52:20,649 INFO L175 Difference]: Start difference. First operand has 299 places, 362 transitions, 9403 flow. Second operand 14 states and 1611 transitions. [2023-08-30 08:52:20,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 396 transitions, 10693 flow [2023-08-30 08:52:20,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 396 transitions, 10457 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-30 08:52:20,771 INFO L231 Difference]: Finished difference. Result has 307 places, 365 transitions, 9436 flow [2023-08-30 08:52:20,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9165, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9436, PETRI_PLACES=307, PETRI_TRANSITIONS=365} [2023-08-30 08:52:20,772 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 269 predicate places. [2023-08-30 08:52:20,772 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 365 transitions, 9436 flow [2023-08-30 08:52:20,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 111.2) internal successors, (1668), 15 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:20,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:20,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:20,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-08-30 08:52:20,773 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:20,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:20,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1374172654, now seen corresponding path program 4 times [2023-08-30 08:52:20,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:20,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240863333] [2023-08-30 08:52:20,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:20,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:21,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:21,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240863333] [2023-08-30 08:52:21,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240863333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:21,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:21,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:21,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745718066] [2023-08-30 08:52:21,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:21,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:21,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:21,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:21,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:22,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 268 [2023-08-30 08:52:22,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 365 transitions, 9436 flow. Second operand has 14 states, 14 states have (on average 110.28571428571429) internal successors, (1544), 14 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:22,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:22,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 268 [2023-08-30 08:52:22,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:22,891 INFO L130 PetriNetUnfolder]: 275/1372 cut-off events. [2023-08-30 08:52:22,892 INFO L131 PetriNetUnfolder]: For 39685/39685 co-relation queries the response was YES. [2023-08-30 08:52:22,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12969 conditions, 1372 events. 275/1372 cut-off events. For 39685/39685 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 13144 event pairs, 35 based on Foata normal form. 6/1378 useless extension candidates. Maximal degree in co-relation 12883. Up to 651 conditions per place. [2023-08-30 08:52:22,900 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 243 selfloop transitions, 141 changer transitions 0/386 dead transitions. [2023-08-30 08:52:22,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 386 transitions, 10403 flow [2023-08-30 08:52:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:52:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:52:22,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1699 transitions. [2023-08-30 08:52:22,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42263681592039803 [2023-08-30 08:52:22,901 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1699 transitions. [2023-08-30 08:52:22,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1699 transitions. [2023-08-30 08:52:22,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:22,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1699 transitions. [2023-08-30 08:52:22,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 113.26666666666667) internal successors, (1699), 15 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:22,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:22,904 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:22,904 INFO L175 Difference]: Start difference. First operand has 307 places, 365 transitions, 9436 flow. Second operand 15 states and 1699 transitions. [2023-08-30 08:52:22,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 386 transitions, 10403 flow [2023-08-30 08:52:23,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 386 transitions, 10277 flow, removed 19 selfloop flow, removed 7 redundant places. [2023-08-30 08:52:23,021 INFO L231 Difference]: Finished difference. Result has 317 places, 368 transitions, 9814 flow [2023-08-30 08:52:23,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9201, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9814, PETRI_PLACES=317, PETRI_TRANSITIONS=368} [2023-08-30 08:52:23,022 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 279 predicate places. [2023-08-30 08:52:23,022 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 368 transitions, 9814 flow [2023-08-30 08:52:23,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 110.28571428571429) internal successors, (1544), 14 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:23,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:23,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:23,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-08-30 08:52:23,023 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:23,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:23,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1534323849, now seen corresponding path program 5 times [2023-08-30 08:52:23,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:23,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794257486] [2023-08-30 08:52:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:23,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794257486] [2023-08-30 08:52:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794257486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972640106] [2023-08-30 08:52:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:23,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:24,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 08:52:24,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 368 transitions, 9814 flow. Second operand has 14 states, 14 states have (on average 111.28571428571429) internal successors, (1558), 14 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:24,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:24,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 08:52:24,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:25,138 INFO L130 PetriNetUnfolder]: 265/1390 cut-off events. [2023-08-30 08:52:25,139 INFO L131 PetriNetUnfolder]: For 45518/45518 co-relation queries the response was YES. [2023-08-30 08:52:25,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13956 conditions, 1390 events. 265/1390 cut-off events. For 45518/45518 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 13629 event pairs, 35 based on Foata normal form. 5/1395 useless extension candidates. Maximal degree in co-relation 13866. Up to 442 conditions per place. [2023-08-30 08:52:25,148 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 207 selfloop transitions, 153 changer transitions 29/391 dead transitions. [2023-08-30 08:52:25,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 391 transitions, 10880 flow [2023-08-30 08:52:25,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:52:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:52:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1827 transitions. [2023-08-30 08:52:25,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42607276119402987 [2023-08-30 08:52:25,149 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1827 transitions. [2023-08-30 08:52:25,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1827 transitions. [2023-08-30 08:52:25,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:25,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1827 transitions. [2023-08-30 08:52:25,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.1875) internal successors, (1827), 16 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:25,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 268.0) internal successors, (4556), 17 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:25,153 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 268.0) internal successors, (4556), 17 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:25,153 INFO L175 Difference]: Start difference. First operand has 317 places, 368 transitions, 9814 flow. Second operand 16 states and 1827 transitions. [2023-08-30 08:52:25,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 391 transitions, 10880 flow [2023-08-30 08:52:25,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 391 transitions, 10412 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-30 08:52:25,285 INFO L231 Difference]: Finished difference. Result has 323 places, 351 transitions, 9408 flow [2023-08-30 08:52:25,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9335, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9408, PETRI_PLACES=323, PETRI_TRANSITIONS=351} [2023-08-30 08:52:25,286 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 285 predicate places. [2023-08-30 08:52:25,286 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 351 transitions, 9408 flow [2023-08-30 08:52:25,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.28571428571429) internal successors, (1558), 14 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:25,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:25,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:25,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-08-30 08:52:25,286 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:25,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:25,286 INFO L85 PathProgramCache]: Analyzing trace with hash -232663312, now seen corresponding path program 5 times [2023-08-30 08:52:25,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:25,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785855779] [2023-08-30 08:52:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:25,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:25,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785855779] [2023-08-30 08:52:25,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785855779] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:25,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:25,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:52:25,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149075677] [2023-08-30 08:52:25,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:25,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:52:25,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:25,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:52:25,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:52:26,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:52:26,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 351 transitions, 9408 flow. Second operand has 11 states, 11 states have (on average 120.54545454545455) internal successors, (1326), 11 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:26,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:26,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:52:26,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:26,617 INFO L130 PetriNetUnfolder]: 256/1316 cut-off events. [2023-08-30 08:52:26,618 INFO L131 PetriNetUnfolder]: For 42046/42046 co-relation queries the response was YES. [2023-08-30 08:52:26,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12972 conditions, 1316 events. 256/1316 cut-off events. For 42046/42046 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 12698 event pairs, 96 based on Foata normal form. 5/1321 useless extension candidates. Maximal degree in co-relation 12884. Up to 917 conditions per place. [2023-08-30 08:52:26,626 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 276 selfloop transitions, 60 changer transitions 0/366 dead transitions. [2023-08-30 08:52:26,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 366 transitions, 10250 flow [2023-08-30 08:52:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:52:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:52:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1235 transitions. [2023-08-30 08:52:26,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4608208955223881 [2023-08-30 08:52:26,628 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1235 transitions. [2023-08-30 08:52:26,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1235 transitions. [2023-08-30 08:52:26,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:26,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1235 transitions. [2023-08-30 08:52:26,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.5) internal successors, (1235), 10 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:26,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:52:26,630 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:52:26,630 INFO L175 Difference]: Start difference. First operand has 323 places, 351 transitions, 9408 flow. Second operand 10 states and 1235 transitions. [2023-08-30 08:52:26,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 366 transitions, 10250 flow [2023-08-30 08:52:26,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 366 transitions, 9832 flow, removed 21 selfloop flow, removed 16 redundant places. [2023-08-30 08:52:26,753 INFO L231 Difference]: Finished difference. Result has 300 places, 355 transitions, 9247 flow [2023-08-30 08:52:26,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9005, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9247, PETRI_PLACES=300, PETRI_TRANSITIONS=355} [2023-08-30 08:52:26,753 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 262 predicate places. [2023-08-30 08:52:26,753 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 355 transitions, 9247 flow [2023-08-30 08:52:26,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.54545454545455) internal successors, (1326), 11 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:26,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:26,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:26,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-08-30 08:52:26,754 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:26,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash -315780201, now seen corresponding path program 6 times [2023-08-30 08:52:26,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:26,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119894587] [2023-08-30 08:52:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:26,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:27,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:27,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119894587] [2023-08-30 08:52:27,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119894587] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:27,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:27,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557331069] [2023-08-30 08:52:27,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:27,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:27,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:27,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:27,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:28,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 08:52:28,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 355 transitions, 9247 flow. Second operand has 14 states, 14 states have (on average 112.28571428571429) internal successors, (1572), 14 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:28,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:28,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 08:52:28,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:29,045 INFO L130 PetriNetUnfolder]: 256/1310 cut-off events. [2023-08-30 08:52:29,045 INFO L131 PetriNetUnfolder]: For 38819/38819 co-relation queries the response was YES. [2023-08-30 08:52:29,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12613 conditions, 1310 events. 256/1310 cut-off events. For 38819/38819 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12572 event pairs, 70 based on Foata normal form. 5/1315 useless extension candidates. Maximal degree in co-relation 12531. Up to 554 conditions per place. [2023-08-30 08:52:29,054 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 212 selfloop transitions, 130 changer transitions 27/371 dead transitions. [2023-08-30 08:52:29,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 371 transitions, 10131 flow [2023-08-30 08:52:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:52:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:52:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1725 transitions. [2023-08-30 08:52:29,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291044776119403 [2023-08-30 08:52:29,055 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1725 transitions. [2023-08-30 08:52:29,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1725 transitions. [2023-08-30 08:52:29,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:29,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1725 transitions. [2023-08-30 08:52:29,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 115.0) internal successors, (1725), 15 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:29,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:29,059 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 268.0) internal successors, (4288), 16 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:29,059 INFO L175 Difference]: Start difference. First operand has 300 places, 355 transitions, 9247 flow. Second operand 15 states and 1725 transitions. [2023-08-30 08:52:29,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 371 transitions, 10131 flow [2023-08-30 08:52:29,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 371 transitions, 10001 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-30 08:52:29,172 INFO L231 Difference]: Finished difference. Result has 310 places, 337 transitions, 9039 flow [2023-08-30 08:52:29,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=9088, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9039, PETRI_PLACES=310, PETRI_TRANSITIONS=337} [2023-08-30 08:52:29,173 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 272 predicate places. [2023-08-30 08:52:29,173 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 337 transitions, 9039 flow [2023-08-30 08:52:29,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.28571428571429) internal successors, (1572), 14 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:29,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:29,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:29,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-08-30 08:52:29,173 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:29,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1961301268, now seen corresponding path program 6 times [2023-08-30 08:52:29,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:29,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847644882] [2023-08-30 08:52:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:29,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:29,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847644882] [2023-08-30 08:52:29,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847644882] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:29,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117982387] [2023-08-30 08:52:29,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:29,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:29,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:30,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 268 [2023-08-30 08:52:30,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 337 transitions, 9039 flow. Second operand has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:30,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:30,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 268 [2023-08-30 08:52:30,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:31,075 INFO L130 PetriNetUnfolder]: 247/1257 cut-off events. [2023-08-30 08:52:31,075 INFO L131 PetriNetUnfolder]: For 39738/39738 co-relation queries the response was YES. [2023-08-30 08:52:31,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12410 conditions, 1257 events. 247/1257 cut-off events. For 39738/39738 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11931 event pairs, 92 based on Foata normal form. 5/1262 useless extension candidates. Maximal degree in co-relation 12327. Up to 941 conditions per place. [2023-08-30 08:52:31,084 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 325 selfloop transitions, 35 changer transitions 1/363 dead transitions. [2023-08-30 08:52:31,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 363 transitions, 10124 flow [2023-08-30 08:52:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:52:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:52:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1475 transitions. [2023-08-30 08:52:31,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233639494833525 [2023-08-30 08:52:31,086 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1475 transitions. [2023-08-30 08:52:31,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1475 transitions. [2023-08-30 08:52:31,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:31,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1475 transitions. [2023-08-30 08:52:31,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.46153846153847) internal successors, (1475), 13 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:31,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:31,089 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:31,089 INFO L175 Difference]: Start difference. First operand has 310 places, 337 transitions, 9039 flow. Second operand 13 states and 1475 transitions. [2023-08-30 08:52:31,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 363 transitions, 10124 flow [2023-08-30 08:52:31,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 363 transitions, 9480 flow, removed 48 selfloop flow, removed 20 redundant places. [2023-08-30 08:52:31,197 INFO L231 Difference]: Finished difference. Result has 291 places, 339 transitions, 8556 flow [2023-08-30 08:52:31,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=8411, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8556, PETRI_PLACES=291, PETRI_TRANSITIONS=339} [2023-08-30 08:52:31,197 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 253 predicate places. [2023-08-30 08:52:31,197 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 339 transitions, 8556 flow [2023-08-30 08:52:31,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:31,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:31,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:31,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-08-30 08:52:31,198 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:31,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash 989891784, now seen corresponding path program 7 times [2023-08-30 08:52:31,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:31,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888620683] [2023-08-30 08:52:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:31,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:31,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888620683] [2023-08-30 08:52:31,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888620683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:31,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:31,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:52:31,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798585265] [2023-08-30 08:52:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:31,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:52:31,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:52:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:52:31,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 08:52:31,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 339 transitions, 8556 flow. Second operand has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:31,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:31,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 08:52:31,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:32,129 INFO L130 PetriNetUnfolder]: 247/1206 cut-off events. [2023-08-30 08:52:32,129 INFO L131 PetriNetUnfolder]: For 32541/32541 co-relation queries the response was YES. [2023-08-30 08:52:32,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10945 conditions, 1206 events. 247/1206 cut-off events. For 32541/32541 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 11291 event pairs, 66 based on Foata normal form. 51/1257 useless extension candidates. Maximal degree in co-relation 10867. Up to 509 conditions per place. [2023-08-30 08:52:32,136 INFO L137 encePairwiseOnDemand]: 260/268 looper letters, 168 selfloop transitions, 49 changer transitions 106/325 dead transitions. [2023-08-30 08:52:32,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 325 transitions, 8685 flow [2023-08-30 08:52:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 843 transitions. [2023-08-30 08:52:32,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4493603411513859 [2023-08-30 08:52:32,137 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 843 transitions. [2023-08-30 08:52:32,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 843 transitions. [2023-08-30 08:52:32,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:32,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 843 transitions. [2023-08-30 08:52:32,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:32,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:32,139 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:32,139 INFO L175 Difference]: Start difference. First operand has 291 places, 339 transitions, 8556 flow. Second operand 7 states and 843 transitions. [2023-08-30 08:52:32,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 325 transitions, 8685 flow [2023-08-30 08:52:32,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 325 transitions, 8630 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 08:52:32,225 INFO L231 Difference]: Finished difference. Result has 287 places, 216 transitions, 5216 flow [2023-08-30 08:52:32,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=7918, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5216, PETRI_PLACES=287, PETRI_TRANSITIONS=216} [2023-08-30 08:52:32,226 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 249 predicate places. [2023-08-30 08:52:32,226 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 216 transitions, 5216 flow [2023-08-30 08:52:32,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:32,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:32,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:32,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-08-30 08:52:32,227 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:32,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -514567767, now seen corresponding path program 7 times [2023-08-30 08:52:32,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:32,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399503157] [2023-08-30 08:52:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:32,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:32,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:32,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399503157] [2023-08-30 08:52:32,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399503157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:32,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:32,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:32,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850069002] [2023-08-30 08:52:32,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:32,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:32,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:32,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:33,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 08:52:33,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 216 transitions, 5216 flow. Second operand has 14 states, 14 states have (on average 111.28571428571429) internal successors, (1558), 14 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:33,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:33,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 08:52:33,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:34,289 INFO L130 PetriNetUnfolder]: 174/800 cut-off events. [2023-08-30 08:52:34,289 INFO L131 PetriNetUnfolder]: For 21143/21143 co-relation queries the response was YES. [2023-08-30 08:52:34,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7315 conditions, 800 events. 174/800 cut-off events. For 21143/21143 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6494 event pairs, 56 based on Foata normal form. 4/804 useless extension candidates. Maximal degree in co-relation 7238. Up to 555 conditions per place. [2023-08-30 08:52:34,294 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 187 selfloop transitions, 42 changer transitions 2/233 dead transitions. [2023-08-30 08:52:34,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 233 transitions, 5841 flow [2023-08-30 08:52:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:52:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:52:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1375 transitions. [2023-08-30 08:52:34,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275497512437811 [2023-08-30 08:52:34,295 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1375 transitions. [2023-08-30 08:52:34,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1375 transitions. [2023-08-30 08:52:34,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:34,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1375 transitions. [2023-08-30 08:52:34,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.58333333333333) internal successors, (1375), 12 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:34,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:34,298 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 268.0) internal successors, (3484), 13 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:34,298 INFO L175 Difference]: Start difference. First operand has 287 places, 216 transitions, 5216 flow. Second operand 12 states and 1375 transitions. [2023-08-30 08:52:34,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 233 transitions, 5841 flow [2023-08-30 08:52:34,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 233 transitions, 5259 flow, removed 73 selfloop flow, removed 23 redundant places. [2023-08-30 08:52:34,350 INFO L231 Difference]: Finished difference. Result has 272 places, 217 transitions, 4770 flow [2023-08-30 08:52:34,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=4626, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4770, PETRI_PLACES=272, PETRI_TRANSITIONS=217} [2023-08-30 08:52:34,351 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 234 predicate places. [2023-08-30 08:52:34,351 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 217 transitions, 4770 flow [2023-08-30 08:52:34,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.28571428571429) internal successors, (1558), 14 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:34,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:34,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:34,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-08-30 08:52:34,351 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:34,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1961301269, now seen corresponding path program 8 times [2023-08-30 08:52:34,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:34,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941343832] [2023-08-30 08:52:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:34,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:34,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941343832] [2023-08-30 08:52:34,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941343832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:34,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:34,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:34,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754240160] [2023-08-30 08:52:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:34,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:34,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:35,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 08:52:35,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 217 transitions, 4770 flow. Second operand has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:35,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:35,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 08:52:35,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:36,003 INFO L130 PetriNetUnfolder]: 174/795 cut-off events. [2023-08-30 08:52:36,004 INFO L131 PetriNetUnfolder]: For 16891/16891 co-relation queries the response was YES. [2023-08-30 08:52:36,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6694 conditions, 795 events. 174/795 cut-off events. For 16891/16891 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6396 event pairs, 69 based on Foata normal form. 2/797 useless extension candidates. Maximal degree in co-relation 6628. Up to 625 conditions per place. [2023-08-30 08:52:36,008 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 181 selfloop transitions, 32 changer transitions 14/229 dead transitions. [2023-08-30 08:52:36,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 229 transitions, 5305 flow [2023-08-30 08:52:36,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:52:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:52:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1495 transitions. [2023-08-30 08:52:36,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291044776119403 [2023-08-30 08:52:36,009 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1495 transitions. [2023-08-30 08:52:36,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1495 transitions. [2023-08-30 08:52:36,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:36,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1495 transitions. [2023-08-30 08:52:36,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,012 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 268.0) internal successors, (3752), 14 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,012 INFO L175 Difference]: Start difference. First operand has 272 places, 217 transitions, 4770 flow. Second operand 13 states and 1495 transitions. [2023-08-30 08:52:36,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 229 transitions, 5305 flow [2023-08-30 08:52:36,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 229 transitions, 5137 flow, removed 28 selfloop flow, removed 10 redundant places. [2023-08-30 08:52:36,052 INFO L231 Difference]: Finished difference. Result has 273 places, 209 transitions, 4505 flow [2023-08-30 08:52:36,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=4586, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4505, PETRI_PLACES=273, PETRI_TRANSITIONS=209} [2023-08-30 08:52:36,052 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 235 predicate places. [2023-08-30 08:52:36,052 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 209 transitions, 4505 flow [2023-08-30 08:52:36,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:36,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:36,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-08-30 08:52:36,053 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:36,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:36,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1889595438, now seen corresponding path program 8 times [2023-08-30 08:52:36,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:36,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325226487] [2023-08-30 08:52:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:36,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:36,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:36,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325226487] [2023-08-30 08:52:36,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325226487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:36,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:36,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:52:36,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202918073] [2023-08-30 08:52:36,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:36,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:52:36,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:36,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:52:36,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:52:36,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 08:52:36,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 209 transitions, 4505 flow. Second operand has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:36,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 08:52:36,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:36,841 INFO L130 PetriNetUnfolder]: 168/748 cut-off events. [2023-08-30 08:52:36,842 INFO L131 PetriNetUnfolder]: For 15192/15192 co-relation queries the response was YES. [2023-08-30 08:52:36,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 748 events. 168/748 cut-off events. For 15192/15192 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5938 event pairs, 44 based on Foata normal form. 14/762 useless extension candidates. Maximal degree in co-relation 6095. Up to 330 conditions per place. [2023-08-30 08:52:36,845 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 122 selfloop transitions, 17 changer transitions 63/204 dead transitions. [2023-08-30 08:52:36,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 204 transitions, 4675 flow [2023-08-30 08:52:36,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 835 transitions. [2023-08-30 08:52:36,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4450959488272921 [2023-08-30 08:52:36,847 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 835 transitions. [2023-08-30 08:52:36,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 835 transitions. [2023-08-30 08:52:36,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:36,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 835 transitions. [2023-08-30 08:52:36,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,849 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,849 INFO L175 Difference]: Start difference. First operand has 273 places, 209 transitions, 4505 flow. Second operand 7 states and 835 transitions. [2023-08-30 08:52:36,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 204 transitions, 4675 flow [2023-08-30 08:52:36,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 204 transitions, 4497 flow, removed 3 selfloop flow, removed 16 redundant places. [2023-08-30 08:52:36,885 INFO L231 Difference]: Finished difference. Result has 248 places, 140 transitions, 2884 flow [2023-08-30 08:52:36,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=4071, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2884, PETRI_PLACES=248, PETRI_TRANSITIONS=140} [2023-08-30 08:52:36,885 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 210 predicate places. [2023-08-30 08:52:36,885 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 140 transitions, 2884 flow [2023-08-30 08:52:36,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:36,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:36,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:36,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-08-30 08:52:36,886 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:36,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:36,886 INFO L85 PathProgramCache]: Analyzing trace with hash -514567768, now seen corresponding path program 9 times [2023-08-30 08:52:36,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:36,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460726431] [2023-08-30 08:52:36,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:36,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:37,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:37,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460726431] [2023-08-30 08:52:37,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460726431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:37,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:37,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:52:37,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456176901] [2023-08-30 08:52:37,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:37,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:52:37,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:37,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:52:37,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:52:37,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:52:37,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 140 transitions, 2884 flow. Second operand has 11 states, 11 states have (on average 120.54545454545455) internal successors, (1326), 11 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:37,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:37,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:52:37,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:38,077 INFO L130 PetriNetUnfolder]: 115/523 cut-off events. [2023-08-30 08:52:38,077 INFO L131 PetriNetUnfolder]: For 11227/11227 co-relation queries the response was YES. [2023-08-30 08:52:38,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4269 conditions, 523 events. 115/523 cut-off events. For 11227/11227 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3756 event pairs, 42 based on Foata normal form. 4/527 useless extension candidates. Maximal degree in co-relation 4209. Up to 325 conditions per place. [2023-08-30 08:52:38,080 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 93 selfloop transitions, 8 changer transitions 34/147 dead transitions. [2023-08-30 08:52:38,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 147 transitions, 3176 flow [2023-08-30 08:52:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:52:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:52:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1228 transitions. [2023-08-30 08:52:38,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582089552238806 [2023-08-30 08:52:38,081 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1228 transitions. [2023-08-30 08:52:38,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1228 transitions. [2023-08-30 08:52:38,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:38,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1228 transitions. [2023-08-30 08:52:38,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.8) internal successors, (1228), 10 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:38,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:52:38,083 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:52:38,083 INFO L175 Difference]: Start difference. First operand has 248 places, 140 transitions, 2884 flow. Second operand 10 states and 1228 transitions. [2023-08-30 08:52:38,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 147 transitions, 3176 flow [2023-08-30 08:52:38,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 147 transitions, 2345 flow, removed 17 selfloop flow, removed 38 redundant places. [2023-08-30 08:52:38,103 INFO L231 Difference]: Finished difference. Result has 192 places, 113 transitions, 1794 flow [2023-08-30 08:52:38,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=2042, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1794, PETRI_PLACES=192, PETRI_TRANSITIONS=113} [2023-08-30 08:52:38,104 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 154 predicate places. [2023-08-30 08:52:38,104 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 113 transitions, 1794 flow [2023-08-30 08:52:38,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.54545454545455) internal successors, (1326), 11 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:38,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:38,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:38,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-08-30 08:52:38,104 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:38,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1899206799, now seen corresponding path program 9 times [2023-08-30 08:52:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:38,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061666501] [2023-08-30 08:52:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:38,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:38,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061666501] [2023-08-30 08:52:38,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061666501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:38,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:38,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:38,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868629475] [2023-08-30 08:52:38,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:38,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:38,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:39,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 08:52:39,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 113 transitions, 1794 flow. Second operand has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:39,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:39,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 08:52:39,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:39,647 INFO L130 PetriNetUnfolder]: 94/409 cut-off events. [2023-08-30 08:52:39,647 INFO L131 PetriNetUnfolder]: For 5363/5363 co-relation queries the response was YES. [2023-08-30 08:52:39,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 409 events. 94/409 cut-off events. For 5363/5363 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2664 event pairs, 34 based on Foata normal form. 2/411 useless extension candidates. Maximal degree in co-relation 2683. Up to 267 conditions per place. [2023-08-30 08:52:39,649 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 82 selfloop transitions, 36 changer transitions 2/122 dead transitions. [2023-08-30 08:52:39,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 122 transitions, 2088 flow [2023-08-30 08:52:39,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:52:39,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:52:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1261 transitions. [2023-08-30 08:52:39,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42774762550881956 [2023-08-30 08:52:39,650 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1261 transitions. [2023-08-30 08:52:39,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1261 transitions. [2023-08-30 08:52:39,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:39,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1261 transitions. [2023-08-30 08:52:39,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:39,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 268.0) internal successors, (3216), 12 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:39,653 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 268.0) internal successors, (3216), 12 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:39,653 INFO L175 Difference]: Start difference. First operand has 192 places, 113 transitions, 1794 flow. Second operand 11 states and 1261 transitions. [2023-08-30 08:52:39,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 122 transitions, 2088 flow [2023-08-30 08:52:39,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 122 transitions, 1901 flow, removed 10 selfloop flow, removed 18 redundant places. [2023-08-30 08:52:39,664 INFO L231 Difference]: Finished difference. Result has 167 places, 114 transitions, 1709 flow [2023-08-30 08:52:39,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1612, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1709, PETRI_PLACES=167, PETRI_TRANSITIONS=114} [2023-08-30 08:52:39,664 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2023-08-30 08:52:39,664 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 114 transitions, 1709 flow [2023-08-30 08:52:39,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:39,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:39,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:39,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-08-30 08:52:39,665 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:39,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1009289706, now seen corresponding path program 10 times [2023-08-30 08:52:39,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:39,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463233033] [2023-08-30 08:52:39,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:39,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:40,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:40,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463233033] [2023-08-30 08:52:40,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463233033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:40,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:40,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:40,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981016959] [2023-08-30 08:52:40,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:40,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:40,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:40,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 268 [2023-08-30 08:52:40,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 114 transitions, 1709 flow. Second operand has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:40,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:40,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 268 [2023-08-30 08:52:40,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:41,142 INFO L130 PetriNetUnfolder]: 94/407 cut-off events. [2023-08-30 08:52:41,142 INFO L131 PetriNetUnfolder]: For 5013/5013 co-relation queries the response was YES. [2023-08-30 08:52:41,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2577 conditions, 407 events. 94/407 cut-off events. For 5013/5013 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2641 event pairs, 34 based on Foata normal form. 2/409 useless extension candidates. Maximal degree in co-relation 2533. Up to 271 conditions per place. [2023-08-30 08:52:41,144 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 73 selfloop transitions, 20 changer transitions 26/121 dead transitions. [2023-08-30 08:52:41,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 121 transitions, 1964 flow [2023-08-30 08:52:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:52:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:52:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1238 transitions. [2023-08-30 08:52:41,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41994572591587515 [2023-08-30 08:52:41,145 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1238 transitions. [2023-08-30 08:52:41,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1238 transitions. [2023-08-30 08:52:41,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:41,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1238 transitions. [2023-08-30 08:52:41,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 112.54545454545455) internal successors, (1238), 11 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:41,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 268.0) internal successors, (3216), 12 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:41,148 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 268.0) internal successors, (3216), 12 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:41,148 INFO L175 Difference]: Start difference. First operand has 167 places, 114 transitions, 1709 flow. Second operand 11 states and 1238 transitions. [2023-08-30 08:52:41,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 121 transitions, 1964 flow [2023-08-30 08:52:41,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 121 transitions, 1898 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-30 08:52:41,156 INFO L231 Difference]: Finished difference. Result has 170 places, 95 transitions, 1313 flow [2023-08-30 08:52:41,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1623, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1313, PETRI_PLACES=170, PETRI_TRANSITIONS=95} [2023-08-30 08:52:41,156 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 08:52:41,156 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 95 transitions, 1313 flow [2023-08-30 08:52:41,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:41,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:41,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:41,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-08-30 08:52:41,157 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:41,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1705185318, now seen corresponding path program 11 times [2023-08-30 08:52:41,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:41,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591841489] [2023-08-30 08:52:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:41,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:41,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591841489] [2023-08-30 08:52:41,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591841489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:41,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:41,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:52:41,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755344796] [2023-08-30 08:52:41,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:41,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:52:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:41,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:52:41,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:52:41,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 08:52:41,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 95 transitions, 1313 flow. Second operand has 11 states, 11 states have (on average 120.54545454545455) internal successors, (1326), 11 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:41,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:41,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 08:52:41,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:42,199 INFO L130 PetriNetUnfolder]: 76/329 cut-off events. [2023-08-30 08:52:42,199 INFO L131 PetriNetUnfolder]: For 2851/2851 co-relation queries the response was YES. [2023-08-30 08:52:42,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1925 conditions, 329 events. 76/329 cut-off events. For 2851/2851 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2008 event pairs, 12 based on Foata normal form. 8/337 useless extension candidates. Maximal degree in co-relation 1881. Up to 91 conditions per place. [2023-08-30 08:52:42,200 INFO L137 encePairwiseOnDemand]: 260/268 looper letters, 22 selfloop transitions, 16 changer transitions 52/94 dead transitions. [2023-08-30 08:52:42,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 94 transitions, 1411 flow [2023-08-30 08:52:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:52:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:52:42,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1097 transitions. [2023-08-30 08:52:42,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45480928689883915 [2023-08-30 08:52:42,201 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1097 transitions. [2023-08-30 08:52:42,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1097 transitions. [2023-08-30 08:52:42,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:42,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1097 transitions. [2023-08-30 08:52:42,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.88888888888889) internal successors, (1097), 9 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,203 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,203 INFO L175 Difference]: Start difference. First operand has 170 places, 95 transitions, 1313 flow. Second operand 9 states and 1097 transitions. [2023-08-30 08:52:42,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 94 transitions, 1411 flow [2023-08-30 08:52:42,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 94 transitions, 1173 flow, removed 21 selfloop flow, removed 21 redundant places. [2023-08-30 08:52:42,208 INFO L231 Difference]: Finished difference. Result has 130 places, 41 transitions, 410 flow [2023-08-30 08:52:42,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=410, PETRI_PLACES=130, PETRI_TRANSITIONS=41} [2023-08-30 08:52:42,209 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 92 predicate places. [2023-08-30 08:52:42,209 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 41 transitions, 410 flow [2023-08-30 08:52:42,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.54545454545455) internal successors, (1326), 11 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:42,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:42,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-08-30 08:52:42,209 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:42,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash 161638679, now seen corresponding path program 10 times [2023-08-30 08:52:42,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:42,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087106667] [2023-08-30 08:52:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:42,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:42,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087106667] [2023-08-30 08:52:42,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087106667] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:42,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:42,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:42,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363539028] [2023-08-30 08:52:42,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:42,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:42,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:42,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:42,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:43,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 08:52:43,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 41 transitions, 410 flow. Second operand has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:43,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:43,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 08:52:43,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:43,712 INFO L130 PetriNetUnfolder]: 18/101 cut-off events. [2023-08-30 08:52:43,713 INFO L131 PetriNetUnfolder]: For 565/565 co-relation queries the response was YES. [2023-08-30 08:52:43,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 101 events. 18/101 cut-off events. For 565/565 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 354 event pairs, 0 based on Foata normal form. 4/105 useless extension candidates. Maximal degree in co-relation 541. Up to 30 conditions per place. [2023-08-30 08:52:43,713 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-08-30 08:52:43,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 43 transitions, 496 flow [2023-08-30 08:52:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:52:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:52:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1134 transitions. [2023-08-30 08:52:43,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42313432835820897 [2023-08-30 08:52:43,714 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1134 transitions. [2023-08-30 08:52:43,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1134 transitions. [2023-08-30 08:52:43,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:43,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1134 transitions. [2023-08-30 08:52:43,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.4) internal successors, (1134), 10 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:43,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:52:43,716 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 268.0) internal successors, (2948), 11 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) [2023-08-30 08:52:43,716 INFO L175 Difference]: Start difference. First operand has 130 places, 41 transitions, 410 flow. Second operand 10 states and 1134 transitions. [2023-08-30 08:52:43,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 43 transitions, 496 flow [2023-08-30 08:52:43,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 43 transitions, 378 flow, removed 5 selfloop flow, removed 21 redundant places. [2023-08-30 08:52:43,718 INFO L231 Difference]: Finished difference. Result has 85 places, 0 transitions, 0 flow [2023-08-30 08:52:43,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=85, PETRI_TRANSITIONS=0} [2023-08-30 08:52:43,718 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 47 predicate places. [2023-08-30 08:52:43,718 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 0 transitions, 0 flow [2023-08-30 08:52:43,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:43,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 08:52:43,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 08:52:43,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 08:52:43,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 08:52:43,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 08:52:43,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 08:52:43,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 08:52:43,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 08:52:43,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-08-30 08:52:43,722 INFO L445 BasicCegarLoop]: Path program histogram: [11, 10, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:43,725 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:52:43,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:52:43,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:52:43 BasicIcfg [2023-08-30 08:52:43,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:52:43,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:52:43,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:52:43,728 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:52:43,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:28" (3/4) ... [2023-08-30 08:52:43,729 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:52:43,733 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 08:52:43,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-08-30 08:52:43,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-08-30 08:52:43,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:52:43,737 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:52:43,760 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:52:43,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:52:43,760 INFO L158 Benchmark]: Toolchain (without parser) took 136750.80ms. Allocated memory was 69.2MB in the beginning and 1.9GB in the end (delta: 1.9GB). Free memory was 37.6MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 679.7MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,761 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 50.3MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:52:43,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.95ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 43.3MB in the end (delta: -6.0MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.67ms. Allocated memory is still 83.9MB. Free memory was 43.3MB in the beginning and 39.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,761 INFO L158 Benchmark]: Boogie Preprocessor took 44.77ms. Allocated memory is still 83.9MB. Free memory was 39.8MB in the beginning and 57.4MB in the end (delta: -17.6MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,761 INFO L158 Benchmark]: RCFGBuilder took 534.28ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 55.4MB in the end (delta: 2.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,762 INFO L158 Benchmark]: TraceAbstraction took 135364.97ms. Allocated memory was 83.9MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 54.9MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 677.3MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,762 INFO L158 Benchmark]: Witness Printer took 32.67ms. Allocated memory is still 1.9GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:52:43,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 50.3MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.95ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 43.3MB in the end (delta: -6.0MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.67ms. Allocated memory is still 83.9MB. Free memory was 43.3MB in the beginning and 39.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.77ms. Allocated memory is still 83.9MB. Free memory was 39.8MB in the beginning and 57.4MB in the end (delta: -17.6MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * RCFGBuilder took 534.28ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 55.4MB in the end (delta: 2.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 135364.97ms. Allocated memory was 83.9MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 54.9MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 677.3MB. Max. memory is 16.1GB. * Witness Printer took 32.67ms. Allocated memory is still 1.9GB. Free memory was 1.2GB in the beginning and 1.2GB 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: 4.7s, 132 PlacesBefore, 38 PlacesAfterwards, 127 TransitionsBefore, 32 TransitionsAfterwards, 3480 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 111 TotalNumberOfCompositions, 9974 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3356, independent: 3032, independent conditional: 0, independent unconditional: 3032, dependent: 324, dependent conditional: 0, dependent unconditional: 324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1918, independent: 1871, independent conditional: 0, independent unconditional: 1871, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3356, independent: 1161, independent conditional: 0, independent unconditional: 1161, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 1918, unknown conditional: 0, unknown unconditional: 1918] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 169 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: 135.3s, OverallIterations: 79, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 94.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22870 SdHoareTripleChecker+Valid, 40.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18906 mSDsluCounter, 23096 SdHoareTripleChecker+Invalid, 34.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22290 mSDsCounter, 2378 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82431 IncrementalHoareTripleChecker+Invalid, 84809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2378 mSolverCounterUnsat, 806 mSDtfsCounter, 82431 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1324 GetRequests, 110 SyntacticMatches, 5 SemanticMatches, 1209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2426 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11297occurred in iteration=62, InterpolantAutomatonStates: 923, 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, 0.7s SatisfiabilityAnalysisTime, 33.7s InterpolantComputationTime, 1033 NumberOfCodeBlocks, 1033 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 954 ConstructedInterpolants, 0 QuantifiedInterpolants, 16010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 79 InterpolantComputations, 79 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! [2023-08-30 08:52:43,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE