./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:05:57,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:05:57,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:05:57,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:05:57,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:05:57,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:05:57,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:05:57,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:05:57,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:05:57,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:05:57,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:05:57,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:05:57,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:05:57,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:05:57,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:05:57,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:05:57,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:05:57,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:05:57,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:05:57,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:05:57,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:05:57,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:05:57,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:05:57,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:05:57,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:05:57,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:05:57,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:05:57,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:05:57,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:05:57,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:05:57,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:05:57,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:05:57,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:05:57,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:05:57,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:05:57,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:05:57,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:05:57,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:05:57,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:05:57,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:05:57,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:05:57,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:05:57,609 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:05:57,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:05:57,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:05:57,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:05:57,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:05:57,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:05:57,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:05:57,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:05:57,611 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:05:57,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:05:57,612 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:05:57,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:05:57,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:05:57,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:05:57,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:05:57,614 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:05:57,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:05:57,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:05:57,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:05:57,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:05:57,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:05:57,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:05:57,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:05:57,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:05:57,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:05:57,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:05:57,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:05:57,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:05:57,616 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:05:57,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:05:57,616 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:05:57,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:05:57,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:05:57,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:05:57,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:05:57,861 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:05:57,862 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:05:57,863 INFO L432 ainManager$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 13:05:59,088 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:05:59,365 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:05:59,365 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-30 13:05:59,377 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a6093613/36cb935e971c43d5a8827611c754fc9d/FLAGfbb1a8d3d [2023-08-30 13:05:59,388 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a6093613/36cb935e971c43d5a8827611c754fc9d [2023-08-30 13:05:59,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:05:59,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:05:59,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:05:59,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:05:59,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:05:59,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:59" (1/1) ... [2023-08-30 13:05:59,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9da9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:59, skipping insertion in model container [2023-08-30 13:05:59,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:59" (1/1) ... [2023-08-30 13:05:59,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:05:59,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:05:59,555 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:05:59,880 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 13:05:59,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:05:59,929 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:05:59,937 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:05:59,985 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 13:06:00,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:00,080 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,080 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,080 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,084 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:06:00,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00 WrapperNode [2023-08-30 13:06:00,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:00,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:00,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:06:00,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:06:00,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,137 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-08-30 13:06:00,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:00,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:06:00,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:06:00,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:06:00,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:06:00,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:06:00,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:06:00,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:06:00,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:00,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:06:00,240 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 13:06:00,251 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 13:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:06:00,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 13:06:00,266 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 13:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:06:00,268 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 13:06:00,519 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:06:00,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:06:00,687 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:06:00,725 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:06:00,725 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:06:00,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:00 BoogieIcfgContainer [2023-08-30 13:06:00,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:06:00,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:06:00,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:06:00,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:06:00,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:05:59" (1/3) ... [2023-08-30 13:06:00,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5253f0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:00, skipping insertion in model container [2023-08-30 13:06:00,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (2/3) ... [2023-08-30 13:06:00,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5253f0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:00, skipping insertion in model container [2023-08-30 13:06:00,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:00" (3/3) ... [2023-08-30 13:06:00,731 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-08-30 13:06:00,736 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:06:00,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:06:00,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 13:06:00,742 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:06:00,782 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:06:00,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 13:06:00,856 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2023-08-30 13:06:00,856 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:06:00,871 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 13:06:00,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 13:06:00,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:00,876 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:06:00,881 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:00,883 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:00,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:00,911 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-08-30 13:06:00,912 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:06:00,913 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 13:06:00,916 INFO L119 LiptonReduction]: Number of co-enabled transitions 3480 [2023-08-30 13:06:05,507 INFO L134 LiptonReduction]: Checked pairs total: 9974 [2023-08-30 13:06:05,507 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-30 13:06:05,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:06:05,520 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;@4cb3f9f7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:06:05,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 13:06:05,523 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-30 13:06:05,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:06:05,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:05,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:06:05,524 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 13:06:05,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:05,527 INFO L85 PathProgramCache]: Analyzing trace with hash 522376557, now seen corresponding path program 1 times [2023-08-30 13:06:05,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:05,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993129006] [2023-08-30 13:06:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:05,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:06,186 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 13:06:06,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:06,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993129006] [2023-08-30 13:06:06,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993129006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:06,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:06,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:06,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778861117] [2023-08-30 13:06:06,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:06,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:06,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:06,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:06,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 268 [2023-08-30 13:06:06,321 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 13:06:06,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:06,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 268 [2023-08-30 13:06:06,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:06,479 INFO L130 PetriNetUnfolder]: 523/938 cut-off events. [2023-08-30 13:06:06,479 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-08-30 13:06:06,481 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 13:06:06,498 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 23 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-08-30 13:06:06,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 137 flow [2023-08-30 13:06:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:06,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2023-08-30 13:06:06,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48009950248756217 [2023-08-30 13:06:06,510 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2023-08-30 13:06:06,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2023-08-30 13:06:06,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:06,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2023-08-30 13:06:06,516 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 13:06:06,520 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 13:06:06,520 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 13:06:06,522 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 772 transitions. [2023-08-30 13:06:06,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 137 flow [2023-08-30 13:06:06,524 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 13:06:06,525 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-08-30 13:06:06,526 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 13:06:06,528 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 13:06:06,528 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-08-30 13:06:06,529 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 13:06:06,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:06,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:06:06,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:06:06,530 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 13:06:06,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:06,530 INFO L85 PathProgramCache]: Analyzing trace with hash -986193261, now seen corresponding path program 1 times [2023-08-30 13:06:06,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:06,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172615942] [2023-08-30 13:06:06,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:06,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:06,837 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 13:06:06,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:06,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172615942] [2023-08-30 13:06:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172615942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329566864] [2023-08-30 13:06:06,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:06,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:06,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:06,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 268 [2023-08-30 13:06:06,944 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 13:06:06,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:06,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 268 [2023-08-30 13:06:06,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:07,098 INFO L130 PetriNetUnfolder]: 513/922 cut-off events. [2023-08-30 13:06:07,099 INFO L131 PetriNetUnfolder]: For 170/170 co-relation queries the response was YES. [2023-08-30 13:06:07,100 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 13:06:07,103 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 32 selfloop transitions, 14 changer transitions 0/48 dead transitions. [2023-08-30 13:06:07,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 241 flow [2023-08-30 13:06:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 777 transitions. [2023-08-30 13:06:07,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4832089552238806 [2023-08-30 13:06:07,105 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 777 transitions. [2023-08-30 13:06:07,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 777 transitions. [2023-08-30 13:06:07,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:07,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 777 transitions. [2023-08-30 13:06:07,108 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 13:06:07,110 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 13:06:07,110 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 13:06:07,110 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 777 transitions. [2023-08-30 13:06:07,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 241 flow [2023-08-30 13:06:07,111 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 13:06:07,112 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 186 flow [2023-08-30 13:06:07,112 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 13:06:07,113 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2023-08-30 13:06:07,113 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 186 flow [2023-08-30 13:06:07,114 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 13:06:07,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:07,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:07,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:06:07,114 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 13:06:07,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash -514989560, now seen corresponding path program 1 times [2023-08-30 13:06:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567795719] [2023-08-30 13:06:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:07,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:07,405 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 13:06:07,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:07,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567795719] [2023-08-30 13:06:07,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567795719] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:07,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:07,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208987674] [2023-08-30 13:06:07,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:07,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:07,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:07,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:07,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:07,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 268 [2023-08-30 13:06:07,486 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 13:06:07,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:07,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 268 [2023-08-30 13:06:07,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:07,642 INFO L130 PetriNetUnfolder]: 505/884 cut-off events. [2023-08-30 13:06:07,643 INFO L131 PetriNetUnfolder]: For 545/545 co-relation queries the response was YES. [2023-08-30 13:06:07,644 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 13:06:07,646 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 36 selfloop transitions, 16 changer transitions 0/54 dead transitions. [2023-08-30 13:06:07,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 358 flow [2023-08-30 13:06:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:07,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 775 transitions. [2023-08-30 13:06:07,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48196517412935325 [2023-08-30 13:06:07,649 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 775 transitions. [2023-08-30 13:06:07,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 775 transitions. [2023-08-30 13:06:07,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:07,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 775 transitions. [2023-08-30 13:06:07,651 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 13:06:07,653 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 13:06:07,653 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 13:06:07,653 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 186 flow. Second operand 6 states and 775 transitions. [2023-08-30 13:06:07,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 358 flow [2023-08-30 13:06:07,655 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 13:06:07,656 INFO L231 Difference]: Finished difference. Result has 52 places, 50 transitions, 276 flow [2023-08-30 13:06:07,656 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 13:06:07,657 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2023-08-30 13:06:07,657 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 276 flow [2023-08-30 13:06:07,657 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 13:06:07,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:07,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:07,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:06:07,658 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 13:06:07,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1456049639, now seen corresponding path program 1 times [2023-08-30 13:06:07,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:07,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275336232] [2023-08-30 13:06:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:07,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:07,986 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 13:06:07,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:07,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275336232] [2023-08-30 13:06:07,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275336232] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:07,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:07,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:07,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278391145] [2023-08-30 13:06:07,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:07,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:07,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:07,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:08,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:08,197 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 13:06:08,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:08,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:08,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:08,409 INFO L130 PetriNetUnfolder]: 497/870 cut-off events. [2023-08-30 13:06:08,409 INFO L131 PetriNetUnfolder]: For 443/443 co-relation queries the response was YES. [2023-08-30 13:06:08,410 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 13:06:08,412 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 42 selfloop transitions, 22 changer transitions 0/66 dead transitions. [2023-08-30 13:06:08,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 469 flow [2023-08-30 13:06:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 762 transitions. [2023-08-30 13:06:08,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47388059701492535 [2023-08-30 13:06:08,415 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 762 transitions. [2023-08-30 13:06:08,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 762 transitions. [2023-08-30 13:06:08,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:08,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 762 transitions. [2023-08-30 13:06:08,417 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 13:06:08,418 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 13:06:08,419 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 13:06:08,419 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 276 flow. Second operand 6 states and 762 transitions. [2023-08-30 13:06:08,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 469 flow [2023-08-30 13:06:08,421 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 13:06:08,421 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 375 flow [2023-08-30 13:06:08,422 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 13:06:08,422 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2023-08-30 13:06:08,422 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 375 flow [2023-08-30 13:06:08,423 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 13:06:08,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:08,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:08,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:06:08,423 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 13:06:08,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:08,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1215693680, now seen corresponding path program 1 times [2023-08-30 13:06:08,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:08,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908251309] [2023-08-30 13:06:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:08,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:08,861 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 13:06:08,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908251309] [2023-08-30 13:06:08,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908251309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:08,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:08,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:08,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696083688] [2023-08-30 13:06:08,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:08,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:08,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:08,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:08,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:08,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:08,996 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 13:06:08,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:08,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:08,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,188 INFO L130 PetriNetUnfolder]: 509/872 cut-off events. [2023-08-30 13:06:09,188 INFO L131 PetriNetUnfolder]: For 897/897 co-relation queries the response was YES. [2023-08-30 13:06:09,190 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 13:06:09,192 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 43 selfloop transitions, 28 changer transitions 0/73 dead transitions. [2023-08-30 13:06:09,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 73 transitions, 611 flow [2023-08-30 13:06:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:09,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2023-08-30 13:06:09,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732587064676617 [2023-08-30 13:06:09,194 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2023-08-30 13:06:09,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2023-08-30 13:06:09,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2023-08-30 13:06:09,196 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 13:06:09,197 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 13:06:09,198 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 13:06:09,198 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 375 flow. Second operand 6 states and 761 transitions. [2023-08-30 13:06:09,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 73 transitions, 611 flow [2023-08-30 13:06:09,200 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 13:06:09,201 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 500 flow [2023-08-30 13:06:09,201 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 13:06:09,201 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2023-08-30 13:06:09,202 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 500 flow [2023-08-30 13:06:09,202 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 13:06:09,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:06:09,202 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 13:06:09,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1215290060, now seen corresponding path program 2 times [2023-08-30 13:06:09,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130812145] [2023-08-30 13:06:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:09,612 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 13:06:09,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:09,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130812145] [2023-08-30 13:06:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130812145] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:09,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:09,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293237201] [2023-08-30 13:06:09,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:09,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:09,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:09,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:09,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:09,768 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 13:06:09,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:09,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:09,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,941 INFO L130 PetriNetUnfolder]: 501/873 cut-off events. [2023-08-30 13:06:09,942 INFO L131 PetriNetUnfolder]: For 939/939 co-relation queries the response was YES. [2023-08-30 13:06:09,943 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 13:06:09,946 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 46 selfloop transitions, 31 changer transitions 0/79 dead transitions. [2023-08-30 13:06:09,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 79 transitions, 739 flow [2023-08-30 13:06:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 760 transitions. [2023-08-30 13:06:09,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.472636815920398 [2023-08-30 13:06:09,948 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 760 transitions. [2023-08-30 13:06:09,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 760 transitions. [2023-08-30 13:06:09,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 760 transitions. [2023-08-30 13:06:09,949 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 13:06:09,951 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 13:06:09,951 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 13:06:09,951 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 500 flow. Second operand 6 states and 760 transitions. [2023-08-30 13:06:09,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 79 transitions, 739 flow [2023-08-30 13:06:09,953 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 13:06:09,954 INFO L231 Difference]: Finished difference. Result has 69 places, 74 transitions, 601 flow [2023-08-30 13:06:09,955 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 13:06:09,955 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 31 predicate places. [2023-08-30 13:06:09,955 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 601 flow [2023-08-30 13:06:09,956 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 13:06:09,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:06:09,956 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 13:06:09,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2107114757, now seen corresponding path program 1 times [2023-08-30 13:06:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689911312] [2023-08-30 13:06:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:10,329 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 13:06:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689911312] [2023-08-30 13:06:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689911312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:10,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:10,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165140442] [2023-08-30 13:06:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:10,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:10,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:10,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:10,470 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 13:06:10,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:10,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:10,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:10,720 INFO L130 PetriNetUnfolder]: 525/912 cut-off events. [2023-08-30 13:06:10,720 INFO L131 PetriNetUnfolder]: For 1301/1301 co-relation queries the response was YES. [2023-08-30 13:06:10,721 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 13:06:10,724 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 60 selfloop transitions, 35 changer transitions 0/97 dead transitions. [2023-08-30 13:06:10,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 97 transitions, 929 flow [2023-08-30 13:06:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1262 transitions. [2023-08-30 13:06:10,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4708955223880597 [2023-08-30 13:06:10,727 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1262 transitions. [2023-08-30 13:06:10,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1262 transitions. [2023-08-30 13:06:10,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:10,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1262 transitions. [2023-08-30 13:06:10,729 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 13:06:10,731 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 13:06:10,732 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 13:06:10,732 INFO L175 Difference]: Start difference. First operand has 69 places, 74 transitions, 601 flow. Second operand 10 states and 1262 transitions. [2023-08-30 13:06:10,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 97 transitions, 929 flow [2023-08-30 13:06:10,735 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 13:06:10,736 INFO L231 Difference]: Finished difference. Result has 79 places, 88 transitions, 782 flow [2023-08-30 13:06:10,737 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 13:06:10,737 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2023-08-30 13:06:10,737 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 88 transitions, 782 flow [2023-08-30 13:06:10,738 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 13:06:10,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:10,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:10,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:06:10,738 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 13:06:10,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:10,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2107114756, now seen corresponding path program 1 times [2023-08-30 13:06:10,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:10,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744695670] [2023-08-30 13:06:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:10,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:11,138 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 13:06:11,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:11,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744695670] [2023-08-30 13:06:11,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744695670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:11,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:11,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563436455] [2023-08-30 13:06:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:11,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:11,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:11,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:11,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:11,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:11,430 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 13:06:11,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:11,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:11,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:11,772 INFO L130 PetriNetUnfolder]: 549/936 cut-off events. [2023-08-30 13:06:11,772 INFO L131 PetriNetUnfolder]: For 1559/1559 co-relation queries the response was YES. [2023-08-30 13:06:11,774 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 13:06:11,776 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 65 selfloop transitions, 46 changer transitions 0/113 dead transitions. [2023-08-30 13:06:11,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 113 transitions, 1235 flow [2023-08-30 13:06:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:11,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1264 transitions. [2023-08-30 13:06:11,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4716417910447761 [2023-08-30 13:06:11,779 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1264 transitions. [2023-08-30 13:06:11,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1264 transitions. [2023-08-30 13:06:11,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:11,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1264 transitions. [2023-08-30 13:06:11,782 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 13:06:11,785 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 13:06:11,786 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 13:06:11,786 INFO L175 Difference]: Start difference. First operand has 79 places, 88 transitions, 782 flow. Second operand 10 states and 1264 transitions. [2023-08-30 13:06:11,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 113 transitions, 1235 flow [2023-08-30 13:06:11,792 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 13:06:11,793 INFO L231 Difference]: Finished difference. Result has 89 places, 105 transitions, 1071 flow [2023-08-30 13:06:11,794 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 13:06:11,795 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 51 predicate places. [2023-08-30 13:06:11,796 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 1071 flow [2023-08-30 13:06:11,796 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 13:06:11,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:11,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:11,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:06:11,796 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 13:06:11,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2107104960, now seen corresponding path program 1 times [2023-08-30 13:06:11,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:11,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377817757] [2023-08-30 13:06:11,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:11,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:12,047 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 13:06:12,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:12,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377817757] [2023-08-30 13:06:12,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377817757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:12,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:12,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:12,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52970980] [2023-08-30 13:06:12,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:12,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:12,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:12,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 13:06:12,198 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 13:06:12,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:12,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 13:06:12,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:12,525 INFO L130 PetriNetUnfolder]: 1033/1862 cut-off events. [2023-08-30 13:06:12,526 INFO L131 PetriNetUnfolder]: For 3773/3773 co-relation queries the response was YES. [2023-08-30 13:06:12,531 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 13:06:12,537 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 138 selfloop transitions, 34 changer transitions 0/174 dead transitions. [2023-08-30 13:06:12,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 174 transitions, 1854 flow [2023-08-30 13:06:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2023-08-30 13:06:12,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47867803837953093 [2023-08-30 13:06:12,539 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2023-08-30 13:06:12,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2023-08-30 13:06:12,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:12,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2023-08-30 13:06:12,541 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 13:06:12,543 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 13:06:12,544 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 13:06:12,544 INFO L175 Difference]: Start difference. First operand has 89 places, 105 transitions, 1071 flow. Second operand 7 states and 898 transitions. [2023-08-30 13:06:12,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 174 transitions, 1854 flow [2023-08-30 13:06:12,552 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 13:06:12,554 INFO L231 Difference]: Finished difference. Result has 94 places, 119 transitions, 1258 flow [2023-08-30 13:06:12,554 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 13:06:12,554 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 56 predicate places. [2023-08-30 13:06:12,555 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 119 transitions, 1258 flow [2023-08-30 13:06:12,555 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 13:06:12,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:12,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:12,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:06:12,556 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 13:06:12,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash -927391157, now seen corresponding path program 2 times [2023-08-30 13:06:12,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:12,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201899677] [2023-08-30 13:06:12,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:12,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:12,953 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 13:06:12,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:12,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201899677] [2023-08-30 13:06:12,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201899677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:12,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:12,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:12,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509110523] [2023-08-30 13:06:12,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:12,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:12,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:12,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:12,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:13,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:13,210 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 13:06:13,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:13,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:13,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:13,643 INFO L130 PetriNetUnfolder]: 1045/1867 cut-off events. [2023-08-30 13:06:13,643 INFO L131 PetriNetUnfolder]: For 5839/5839 co-relation queries the response was YES. [2023-08-30 13:06:13,648 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 13:06:13,654 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 75 selfloop transitions, 55 changer transitions 0/132 dead transitions. [2023-08-30 13:06:13,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 132 transitions, 1612 flow [2023-08-30 13:06:13,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1507 transitions. [2023-08-30 13:06:13,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4685945273631841 [2023-08-30 13:06:13,658 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1507 transitions. [2023-08-30 13:06:13,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1507 transitions. [2023-08-30 13:06:13,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:13,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1507 transitions. [2023-08-30 13:06:13,661 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 13:06:13,664 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 13:06:13,664 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 13:06:13,664 INFO L175 Difference]: Start difference. First operand has 94 places, 119 transitions, 1258 flow. Second operand 12 states and 1507 transitions. [2023-08-30 13:06:13,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 132 transitions, 1612 flow [2023-08-30 13:06:13,676 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 13:06:13,678 INFO L231 Difference]: Finished difference. Result has 103 places, 125 transitions, 1444 flow [2023-08-30 13:06:13,678 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 13:06:13,679 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 65 predicate places. [2023-08-30 13:06:13,679 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 125 transitions, 1444 flow [2023-08-30 13:06:13,679 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 13:06:13,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:13,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:13,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 13:06:13,680 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 13:06:13,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:13,680 INFO L85 PathProgramCache]: Analyzing trace with hash -925949657, now seen corresponding path program 3 times [2023-08-30 13:06:13,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:13,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407780529] [2023-08-30 13:06:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:13,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:14,067 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 13:06:14,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:14,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407780529] [2023-08-30 13:06:14,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407780529] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:14,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:14,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:14,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759370366] [2023-08-30 13:06:14,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:14,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:14,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:14,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:14,283 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 13:06:14,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:14,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:14,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:14,634 INFO L130 PetriNetUnfolder]: 1037/1857 cut-off events. [2023-08-30 13:06:14,635 INFO L131 PetriNetUnfolder]: For 5969/5969 co-relation queries the response was YES. [2023-08-30 13:06:14,640 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 13:06:14,652 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 82 selfloop transitions, 48 changer transitions 0/132 dead transitions. [2023-08-30 13:06:14,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 1735 flow [2023-08-30 13:06:14,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1016 transitions. [2023-08-30 13:06:14,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47388059701492535 [2023-08-30 13:06:14,654 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1016 transitions. [2023-08-30 13:06:14,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1016 transitions. [2023-08-30 13:06:14,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:14,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1016 transitions. [2023-08-30 13:06:14,656 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 13:06:14,658 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 13:06:14,659 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 13:06:14,659 INFO L175 Difference]: Start difference. First operand has 103 places, 125 transitions, 1444 flow. Second operand 8 states and 1016 transitions. [2023-08-30 13:06:14,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 1735 flow [2023-08-30 13:06:14,674 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 13:06:14,677 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 1467 flow [2023-08-30 13:06:14,678 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 13:06:14,678 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 64 predicate places. [2023-08-30 13:06:14,678 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 1467 flow [2023-08-30 13:06:14,679 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 13:06:14,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:14,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:14,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 13:06:14,679 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 13:06:14,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash -968205067, now seen corresponding path program 1 times [2023-08-30 13:06:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:14,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287256583] [2023-08-30 13:06:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:14,939 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 13:06:14,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:14,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287256583] [2023-08-30 13:06:14,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287256583] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:14,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:14,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:14,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866911917] [2023-08-30 13:06:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:14,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:14,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:14,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:14,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:15,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 13:06:15,124 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 13:06:15,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:15,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 13:06:15,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:15,644 INFO L130 PetriNetUnfolder]: 2075/3817 cut-off events. [2023-08-30 13:06:15,644 INFO L131 PetriNetUnfolder]: For 12015/12015 co-relation queries the response was YES. [2023-08-30 13:06:15,654 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 13:06:15,665 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 144 selfloop transitions, 45 changer transitions 0/191 dead transitions. [2023-08-30 13:06:15,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 191 transitions, 2285 flow [2023-08-30 13:06:15,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 904 transitions. [2023-08-30 13:06:15,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48187633262260127 [2023-08-30 13:06:15,667 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 904 transitions. [2023-08-30 13:06:15,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 904 transitions. [2023-08-30 13:06:15,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:15,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 904 transitions. [2023-08-30 13:06:15,669 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 13:06:15,671 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 13:06:15,671 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 13:06:15,671 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 1467 flow. Second operand 7 states and 904 transitions. [2023-08-30 13:06:15,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 191 transitions, 2285 flow [2023-08-30 13:06:15,692 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 13:06:15,694 INFO L231 Difference]: Finished difference. Result has 106 places, 139 transitions, 1690 flow [2023-08-30 13:06:15,695 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 13:06:15,695 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 68 predicate places. [2023-08-30 13:06:15,695 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 139 transitions, 1690 flow [2023-08-30 13:06:15,695 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 13:06:15,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:15,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:15,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 13:06:15,696 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 13:06:15,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:15,696 INFO L85 PathProgramCache]: Analyzing trace with hash -974224957, now seen corresponding path program 2 times [2023-08-30 13:06:15,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:15,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906917084] [2023-08-30 13:06:15,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:15,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:16,116 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 13:06:16,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:16,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906917084] [2023-08-30 13:06:16,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906917084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:16,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:16,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:16,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185346074] [2023-08-30 13:06:16,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:16,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:16,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:16,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:16,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:16,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:16,321 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 13:06:16,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:16,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:16,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:16,780 INFO L130 PetriNetUnfolder]: 2005/3715 cut-off events. [2023-08-30 13:06:16,781 INFO L131 PetriNetUnfolder]: For 17260/17260 co-relation queries the response was YES. [2023-08-30 13:06:16,790 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 13:06:16,801 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 116 selfloop transitions, 48 changer transitions 0/166 dead transitions. [2023-08-30 13:06:16,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 166 transitions, 2246 flow [2023-08-30 13:06:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:16,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:16,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 994 transitions. [2023-08-30 13:06:16,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46361940298507465 [2023-08-30 13:06:16,811 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 994 transitions. [2023-08-30 13:06:16,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 994 transitions. [2023-08-30 13:06:16,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:16,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 994 transitions. [2023-08-30 13:06:16,813 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 13:06:16,815 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 13:06:16,815 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 13:06:16,815 INFO L175 Difference]: Start difference. First operand has 106 places, 139 transitions, 1690 flow. Second operand 8 states and 994 transitions. [2023-08-30 13:06:16,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 166 transitions, 2246 flow [2023-08-30 13:06:16,847 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 13:06:16,850 INFO L231 Difference]: Finished difference. Result has 112 places, 151 transitions, 1896 flow [2023-08-30 13:06:16,850 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 13:06:16,850 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 74 predicate places. [2023-08-30 13:06:16,850 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 151 transitions, 1896 flow [2023-08-30 13:06:16,851 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 13:06:16,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:16,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:16,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 13:06:16,851 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 13:06:16,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:16,852 INFO L85 PathProgramCache]: Analyzing trace with hash -981065355, now seen corresponding path program 4 times [2023-08-30 13:06:16,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:16,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799798943] [2023-08-30 13:06:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:16,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:17,257 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 13:06:17,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:17,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799798943] [2023-08-30 13:06:17,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799798943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:17,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:17,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:17,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381066746] [2023-08-30 13:06:17,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:17,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:17,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:17,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:17,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:17,462 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 13:06:17,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:17,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:17,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:17,948 INFO L130 PetriNetUnfolder]: 2031/3736 cut-off events. [2023-08-30 13:06:17,948 INFO L131 PetriNetUnfolder]: For 18208/18208 co-relation queries the response was YES. [2023-08-30 13:06:17,958 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 13:06:17,967 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 132 selfloop transitions, 35 changer transitions 0/169 dead transitions. [2023-08-30 13:06:17,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 169 transitions, 2457 flow [2023-08-30 13:06:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:17,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 889 transitions. [2023-08-30 13:06:17,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47388059701492535 [2023-08-30 13:06:17,970 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 889 transitions. [2023-08-30 13:06:17,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 889 transitions. [2023-08-30 13:06:17,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:17,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 889 transitions. [2023-08-30 13:06:17,971 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 13:06:17,973 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 13:06:17,973 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 13:06:17,973 INFO L175 Difference]: Start difference. First operand has 112 places, 151 transitions, 1896 flow. Second operand 7 states and 889 transitions. [2023-08-30 13:06:17,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 169 transitions, 2457 flow [2023-08-30 13:06:18,007 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 13:06:18,009 INFO L231 Difference]: Finished difference. Result has 116 places, 162 transitions, 2104 flow [2023-08-30 13:06:18,009 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 13:06:18,009 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 78 predicate places. [2023-08-30 13:06:18,010 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 162 transitions, 2104 flow [2023-08-30 13:06:18,010 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 13:06:18,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:18,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:18,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 13:06:18,010 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 13:06:18,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash -981065354, now seen corresponding path program 2 times [2023-08-30 13:06:18,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:18,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562070969] [2023-08-30 13:06:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:18,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:18,383 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 13:06:18,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562070969] [2023-08-30 13:06:18,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562070969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:18,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:18,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:18,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192281256] [2023-08-30 13:06:18,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:18,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:18,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:18,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:18,640 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 13:06:18,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:18,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:18,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:19,316 INFO L130 PetriNetUnfolder]: 2050/3764 cut-off events. [2023-08-30 13:06:19,316 INFO L131 PetriNetUnfolder]: For 20419/20419 co-relation queries the response was YES. [2023-08-30 13:06:19,326 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 13:06:19,335 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 122 selfloop transitions, 71 changer transitions 0/195 dead transitions. [2023-08-30 13:06:19,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 195 transitions, 2956 flow [2023-08-30 13:06:19,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:19,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1752 transitions. [2023-08-30 13:06:19,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669509594882729 [2023-08-30 13:06:19,338 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1752 transitions. [2023-08-30 13:06:19,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1752 transitions. [2023-08-30 13:06:19,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:19,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1752 transitions. [2023-08-30 13:06:19,341 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 13:06:19,344 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 13:06:19,345 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 13:06:19,345 INFO L175 Difference]: Start difference. First operand has 116 places, 162 transitions, 2104 flow. Second operand 14 states and 1752 transitions. [2023-08-30 13:06:19,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 195 transitions, 2956 flow [2023-08-30 13:06:19,384 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 13:06:19,387 INFO L231 Difference]: Finished difference. Result has 127 places, 186 transitions, 2646 flow [2023-08-30 13:06:19,387 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 13:06:19,387 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2023-08-30 13:06:19,388 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 186 transitions, 2646 flow [2023-08-30 13:06:19,388 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 13:06:19,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:19,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:19,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 13:06:19,388 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 13:06:19,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash -981613124, now seen corresponding path program 3 times [2023-08-30 13:06:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:19,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410147968] [2023-08-30 13:06:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:19,703 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 13:06:19,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:19,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410147968] [2023-08-30 13:06:19,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410147968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:19,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:19,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336604391] [2023-08-30 13:06:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:19,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:19,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:19,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:19,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:19,935 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 13:06:19,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:19,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:19,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:20,580 INFO L130 PetriNetUnfolder]: 2034/3734 cut-off events. [2023-08-30 13:06:20,580 INFO L131 PetriNetUnfolder]: For 20681/20681 co-relation queries the response was YES. [2023-08-30 13:06:20,590 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 13:06:20,599 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 138 selfloop transitions, 64 changer transitions 0/204 dead transitions. [2023-08-30 13:06:20,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 204 transitions, 3288 flow [2023-08-30 13:06:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:20,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1510 transitions. [2023-08-30 13:06:20,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695273631840796 [2023-08-30 13:06:20,602 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1510 transitions. [2023-08-30 13:06:20,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1510 transitions. [2023-08-30 13:06:20,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:20,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1510 transitions. [2023-08-30 13:06:20,606 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 13:06:20,610 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 13:06:20,610 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 13:06:20,610 INFO L175 Difference]: Start difference. First operand has 127 places, 186 transitions, 2646 flow. Second operand 12 states and 1510 transitions. [2023-08-30 13:06:20,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 204 transitions, 3288 flow [2023-08-30 13:06:20,651 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 13:06:20,654 INFO L231 Difference]: Finished difference. Result has 134 places, 194 transitions, 2809 flow [2023-08-30 13:06:20,654 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 13:06:20,655 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 96 predicate places. [2023-08-30 13:06:20,655 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 194 transitions, 2809 flow [2023-08-30 13:06:20,656 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 13:06:20,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:20,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:20,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 13:06:20,656 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 13:06:20,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash -974222848, now seen corresponding path program 2 times [2023-08-30 13:06:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:20,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263621767] [2023-08-30 13:06:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:20,916 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 13:06:20,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:20,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263621767] [2023-08-30 13:06:20,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263621767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:20,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:20,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979838867] [2023-08-30 13:06:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:20,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:20,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:21,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:21,087 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 13:06:21,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:21,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:21,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:21,728 INFO L130 PetriNetUnfolder]: 2688/4934 cut-off events. [2023-08-30 13:06:21,728 INFO L131 PetriNetUnfolder]: For 30573/30573 co-relation queries the response was YES. [2023-08-30 13:06:21,741 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 13:06:21,751 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 159 selfloop transitions, 106 changer transitions 6/273 dead transitions. [2023-08-30 13:06:21,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 273 transitions, 4133 flow [2023-08-30 13:06:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1019 transitions. [2023-08-30 13:06:21,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47527985074626866 [2023-08-30 13:06:21,753 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1019 transitions. [2023-08-30 13:06:21,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1019 transitions. [2023-08-30 13:06:21,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:21,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1019 transitions. [2023-08-30 13:06:21,755 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 13:06:21,757 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 13:06:21,757 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 13:06:21,757 INFO L175 Difference]: Start difference. First operand has 134 places, 194 transitions, 2809 flow. Second operand 8 states and 1019 transitions. [2023-08-30 13:06:21,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 273 transitions, 4133 flow [2023-08-30 13:06:21,812 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 13:06:21,815 INFO L231 Difference]: Finished difference. Result has 138 places, 231 transitions, 3559 flow [2023-08-30 13:06:21,816 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 13:06:21,816 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 100 predicate places. [2023-08-30 13:06:21,816 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 231 transitions, 3559 flow [2023-08-30 13:06:21,816 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 13:06:21,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:21,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:21,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 13:06:21,817 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 13:06:21,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:21,817 INFO L85 PathProgramCache]: Analyzing trace with hash -968283868, now seen corresponding path program 3 times [2023-08-30 13:06:21,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:21,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516629752] [2023-08-30 13:06:21,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:21,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:22,029 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 13:06:22,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:22,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516629752] [2023-08-30 13:06:22,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516629752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:22,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:22,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:22,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535227292] [2023-08-30 13:06:22,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:22,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:22,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:22,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:22,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:22,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 13:06:22,183 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 13:06:22,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:22,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 13:06:22,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:22,832 INFO L130 PetriNetUnfolder]: 2630/4890 cut-off events. [2023-08-30 13:06:22,832 INFO L131 PetriNetUnfolder]: For 46029/46029 co-relation queries the response was YES. [2023-08-30 13:06:22,845 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 13:06:22,854 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 238 selfloop transitions, 77 changer transitions 6/323 dead transitions. [2023-08-30 13:06:22,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 323 transitions, 5298 flow [2023-08-30 13:06:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:22,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2023-08-30 13:06:22,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47921108742004265 [2023-08-30 13:06:22,856 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2023-08-30 13:06:22,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2023-08-30 13:06:22,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:22,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2023-08-30 13:06:22,858 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 13:06:22,859 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 13:06:22,859 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 13:06:22,860 INFO L175 Difference]: Start difference. First operand has 138 places, 231 transitions, 3559 flow. Second operand 7 states and 899 transitions. [2023-08-30 13:06:22,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 323 transitions, 5298 flow [2023-08-30 13:06:22,978 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 13:06:22,982 INFO L231 Difference]: Finished difference. Result has 144 places, 248 transitions, 3961 flow [2023-08-30 13:06:22,983 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 13:06:22,983 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 106 predicate places. [2023-08-30 13:06:22,983 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 248 transitions, 3961 flow [2023-08-30 13:06:22,984 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 13:06:22,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:22,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:22,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 13:06:22,984 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 13:06:22,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:22,985 INFO L85 PathProgramCache]: Analyzing trace with hash -980171625, now seen corresponding path program 5 times [2023-08-30 13:06:22,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:22,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153203080] [2023-08-30 13:06:22,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:22,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:23,318 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 13:06:23,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:23,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153203080] [2023-08-30 13:06:23,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153203080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:23,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:23,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:23,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135450154] [2023-08-30 13:06:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:23,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:23,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:23,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:23,519 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 13:06:23,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:23,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:23,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:24,388 INFO L130 PetriNetUnfolder]: 2524/4704 cut-off events. [2023-08-30 13:06:24,388 INFO L131 PetriNetUnfolder]: For 49035/49035 co-relation queries the response was YES. [2023-08-30 13:06:24,403 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 13:06:24,412 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 195 selfloop transitions, 57 changer transitions 0/254 dead transitions. [2023-08-30 13:06:24,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 254 transitions, 4491 flow [2023-08-30 13:06:24,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1627 transitions. [2023-08-30 13:06:24,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46699196326062 [2023-08-30 13:06:24,419 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1627 transitions. [2023-08-30 13:06:24,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1627 transitions. [2023-08-30 13:06:24,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:24,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1627 transitions. [2023-08-30 13:06:24,421 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 13:06:24,423 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 13:06:24,424 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 13:06:24,424 INFO L175 Difference]: Start difference. First operand has 144 places, 248 transitions, 3961 flow. Second operand 13 states and 1627 transitions. [2023-08-30 13:06:24,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 254 transitions, 4491 flow [2023-08-30 13:06:24,537 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 13:06:24,541 INFO L231 Difference]: Finished difference. Result has 154 places, 249 transitions, 3987 flow [2023-08-30 13:06:24,542 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 13:06:24,542 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 116 predicate places. [2023-08-30 13:06:24,542 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 249 transitions, 3987 flow [2023-08-30 13:06:24,542 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 13:06:24,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:24,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:24,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 13:06:24,543 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 13:06:24,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash -896044720, now seen corresponding path program 1 times [2023-08-30 13:06:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:24,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84447797] [2023-08-30 13:06:24,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:25,012 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 13:06:25,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:25,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84447797] [2023-08-30 13:06:25,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84447797] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:25,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:25,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338559305] [2023-08-30 13:06:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:25,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:25,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:25,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:25,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:25,309 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 13:06:25,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:25,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:25,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:26,178 INFO L130 PetriNetUnfolder]: 2582/4793 cut-off events. [2023-08-30 13:06:26,178 INFO L131 PetriNetUnfolder]: For 47380/47380 co-relation queries the response was YES. [2023-08-30 13:06:26,195 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 13:06:26,205 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 182 selfloop transitions, 99 changer transitions 0/283 dead transitions. [2023-08-30 13:06:26,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 283 transitions, 4976 flow [2023-08-30 13:06:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1241 transitions. [2023-08-30 13:06:26,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46305970149253733 [2023-08-30 13:06:26,207 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1241 transitions. [2023-08-30 13:06:26,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1241 transitions. [2023-08-30 13:06:26,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:26,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1241 transitions. [2023-08-30 13:06:26,209 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 13:06:26,210 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 13:06:26,211 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 13:06:26,211 INFO L175 Difference]: Start difference. First operand has 154 places, 249 transitions, 3987 flow. Second operand 10 states and 1241 transitions. [2023-08-30 13:06:26,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 283 transitions, 4976 flow [2023-08-30 13:06:26,318 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 13:06:26,322 INFO L231 Difference]: Finished difference. Result has 157 places, 273 transitions, 4518 flow [2023-08-30 13:06:26,323 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 13:06:26,323 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 119 predicate places. [2023-08-30 13:06:26,323 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 273 transitions, 4518 flow [2023-08-30 13:06:26,324 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 13:06:26,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:26,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:26,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 13:06:26,324 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 13:06:26,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash -895547171, now seen corresponding path program 1 times [2023-08-30 13:06:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:26,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783188301] [2023-08-30 13:06:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:26,571 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 13:06:26,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:26,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783188301] [2023-08-30 13:06:26,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783188301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:26,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:26,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:26,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590782093] [2023-08-30 13:06:26,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:26,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:26,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:26,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:26,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:26,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 13:06:26,610 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 13:06:26,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:26,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 13:06:26,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:27,319 INFO L130 PetriNetUnfolder]: 2412/4662 cut-off events. [2023-08-30 13:06:27,319 INFO L131 PetriNetUnfolder]: For 47923/47962 co-relation queries the response was YES. [2023-08-30 13:06:27,338 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 13:06:27,349 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 209 selfloop transitions, 18 changer transitions 13/267 dead transitions. [2023-08-30 13:06:27,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 267 transitions, 4512 flow [2023-08-30 13:06:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2023-08-30 13:06:27,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5118159203980099 [2023-08-30 13:06:27,351 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2023-08-30 13:06:27,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2023-08-30 13:06:27,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:27,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2023-08-30 13:06:27,352 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 13:06:27,353 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 13:06:27,354 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 13:06:27,354 INFO L175 Difference]: Start difference. First operand has 157 places, 273 transitions, 4518 flow. Second operand 6 states and 823 transitions. [2023-08-30 13:06:27,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 267 transitions, 4512 flow [2023-08-30 13:06:27,496 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 13:06:27,499 INFO L231 Difference]: Finished difference. Result has 141 places, 216 transitions, 3160 flow [2023-08-30 13:06:27,499 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 13:06:27,500 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 103 predicate places. [2023-08-30 13:06:27,500 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 216 transitions, 3160 flow [2023-08-30 13:06:27,500 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 13:06:27,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:27,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:27,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 13:06:27,500 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 13:06:27,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:27,501 INFO L85 PathProgramCache]: Analyzing trace with hash -365232496, now seen corresponding path program 2 times [2023-08-30 13:06:27,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:27,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015010180] [2023-08-30 13:06:27,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:27,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:27,969 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 13:06:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015010180] [2023-08-30 13:06:27,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015010180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:27,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:27,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880134867] [2023-08-30 13:06:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:27,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:27,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:27,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:27,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:28,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:28,254 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 13:06:28,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:28,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:28,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:29,199 INFO L130 PetriNetUnfolder]: 2538/4868 cut-off events. [2023-08-30 13:06:29,199 INFO L131 PetriNetUnfolder]: For 48117/48117 co-relation queries the response was YES. [2023-08-30 13:06:29,215 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 13:06:29,225 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 164 selfloop transitions, 85 changer transitions 0/251 dead transitions. [2023-08-30 13:06:29,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 251 transitions, 4127 flow [2023-08-30 13:06:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1475 transitions. [2023-08-30 13:06:29,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45864427860696516 [2023-08-30 13:06:29,227 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1475 transitions. [2023-08-30 13:06:29,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1475 transitions. [2023-08-30 13:06:29,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:29,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1475 transitions. [2023-08-30 13:06:29,229 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 13:06:29,231 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 13:06:29,231 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 13:06:29,231 INFO L175 Difference]: Start difference. First operand has 141 places, 216 transitions, 3160 flow. Second operand 12 states and 1475 transitions. [2023-08-30 13:06:29,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 251 transitions, 4127 flow [2023-08-30 13:06:29,320 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 13:06:29,323 INFO L231 Difference]: Finished difference. Result has 150 places, 241 transitions, 3737 flow [2023-08-30 13:06:29,324 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 13:06:29,325 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 112 predicate places. [2023-08-30 13:06:29,325 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 241 transitions, 3737 flow [2023-08-30 13:06:29,326 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 13:06:29,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:29,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:29,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 13:06:29,326 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 13:06:29,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:29,326 INFO L85 PathProgramCache]: Analyzing trace with hash -349318337, now seen corresponding path program 2 times [2023-08-30 13:06:29,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845711940] [2023-08-30 13:06:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:29,761 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 13:06:29,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:29,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845711940] [2023-08-30 13:06:29,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845711940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:29,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:29,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:29,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218100511] [2023-08-30 13:06:29,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:29,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:29,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:29,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:29,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:30,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:30,060 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 13:06:30,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:30,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:30,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:30,902 INFO L130 PetriNetUnfolder]: 2490/4786 cut-off events. [2023-08-30 13:06:30,902 INFO L131 PetriNetUnfolder]: For 47548/47548 co-relation queries the response was YES. [2023-08-30 13:06:30,921 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 13:06:30,932 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 178 selfloop transitions, 80 changer transitions 0/260 dead transitions. [2023-08-30 13:06:30,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 260 transitions, 4525 flow [2023-08-30 13:06:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:30,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1113 transitions. [2023-08-30 13:06:30,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4614427860696517 [2023-08-30 13:06:30,934 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1113 transitions. [2023-08-30 13:06:30,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1113 transitions. [2023-08-30 13:06:30,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:30,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1113 transitions. [2023-08-30 13:06:30,936 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 13:06:30,937 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 13:06:30,938 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 13:06:30,938 INFO L175 Difference]: Start difference. First operand has 150 places, 241 transitions, 3737 flow. Second operand 9 states and 1113 transitions. [2023-08-30 13:06:30,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 260 transitions, 4525 flow [2023-08-30 13:06:31,059 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 13:06:31,063 INFO L231 Difference]: Finished difference. Result has 153 places, 255 transitions, 4044 flow [2023-08-30 13:06:31,063 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 13:06:31,064 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 115 predicate places. [2023-08-30 13:06:31,064 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 255 transitions, 4044 flow [2023-08-30 13:06:31,064 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 13:06:31,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:31,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:31,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 13:06:31,064 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 13:06:31,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:31,065 INFO L85 PathProgramCache]: Analyzing trace with hash -348157696, now seen corresponding path program 3 times [2023-08-30 13:06:31,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:31,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070790765] [2023-08-30 13:06:31,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:31,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:31,499 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 13:06:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070790765] [2023-08-30 13:06:31,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070790765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:31,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:31,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:31,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863912063] [2023-08-30 13:06:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:31,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:31,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:31,865 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 13:06:31,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:31,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:31,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:32,970 INFO L130 PetriNetUnfolder]: 2426/4678 cut-off events. [2023-08-30 13:06:32,970 INFO L131 PetriNetUnfolder]: For 49123/49123 co-relation queries the response was YES. [2023-08-30 13:06:32,988 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 13:06:32,999 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 155 selfloop transitions, 112 changer transitions 0/269 dead transitions. [2023-08-30 13:06:33,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 269 transitions, 4715 flow [2023-08-30 13:06:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:33,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1719 transitions. [2023-08-30 13:06:33,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4581556503198294 [2023-08-30 13:06:33,002 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1719 transitions. [2023-08-30 13:06:33,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1719 transitions. [2023-08-30 13:06:33,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:33,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1719 transitions. [2023-08-30 13:06:33,005 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 13:06:33,007 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 13:06:33,007 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 13:06:33,008 INFO L175 Difference]: Start difference. First operand has 153 places, 255 transitions, 4044 flow. Second operand 14 states and 1719 transitions. [2023-08-30 13:06:33,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 269 transitions, 4715 flow [2023-08-30 13:06:33,118 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 13:06:33,122 INFO L231 Difference]: Finished difference. Result has 163 places, 262 transitions, 4266 flow [2023-08-30 13:06:33,123 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 13:06:33,123 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2023-08-30 13:06:33,123 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 262 transitions, 4266 flow [2023-08-30 13:06:33,123 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 13:06:33,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:33,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:33,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 13:06:33,124 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 13:06:33,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:33,124 INFO L85 PathProgramCache]: Analyzing trace with hash -318641357, now seen corresponding path program 3 times [2023-08-30 13:06:33,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:33,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512931997] [2023-08-30 13:06:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:33,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:33,609 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 13:06:33,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:33,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512931997] [2023-08-30 13:06:33,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512931997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:33,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:33,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:33,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245315537] [2023-08-30 13:06:33,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:33,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:33,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:33,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:33,906 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 13:06:33,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:33,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:33,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:34,894 INFO L130 PetriNetUnfolder]: 2386/4600 cut-off events. [2023-08-30 13:06:34,895 INFO L131 PetriNetUnfolder]: For 49442/49442 co-relation queries the response was YES. [2023-08-30 13:06:34,912 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 13:06:34,921 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 166 selfloop transitions, 101 changer transitions 0/269 dead transitions. [2023-08-30 13:06:34,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 269 transitions, 4845 flow [2023-08-30 13:06:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1598 transitions. [2023-08-30 13:06:34,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45866819747416765 [2023-08-30 13:06:34,924 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1598 transitions. [2023-08-30 13:06:34,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1598 transitions. [2023-08-30 13:06:34,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:34,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1598 transitions. [2023-08-30 13:06:34,926 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 13:06:34,928 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 13:06:34,929 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 13:06:34,929 INFO L175 Difference]: Start difference. First operand has 163 places, 262 transitions, 4266 flow. Second operand 13 states and 1598 transitions. [2023-08-30 13:06:34,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 269 transitions, 4845 flow [2023-08-30 13:06:35,047 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 13:06:35,050 INFO L231 Difference]: Finished difference. Result has 164 places, 263 transitions, 4223 flow [2023-08-30 13:06:35,051 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 13:06:35,051 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 126 predicate places. [2023-08-30 13:06:35,051 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 263 transitions, 4223 flow [2023-08-30 13:06:35,051 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 13:06:35,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:35,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:35,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 13:06:35,052 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 13:06:35,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash 76243346, now seen corresponding path program 1 times [2023-08-30 13:06:35,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:35,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114057784] [2023-08-30 13:06:35,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:35,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:35,442 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 13:06:35,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:35,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114057784] [2023-08-30 13:06:35,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114057784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:35,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:35,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:35,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256195518] [2023-08-30 13:06:35,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:35,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:35,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:35,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:35,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 268 [2023-08-30 13:06:35,836 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 13:06:35,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:35,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 268 [2023-08-30 13:06:35,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:36,972 INFO L130 PetriNetUnfolder]: 2669/5159 cut-off events. [2023-08-30 13:06:36,972 INFO L131 PetriNetUnfolder]: For 57528/57528 co-relation queries the response was YES. [2023-08-30 13:06:36,994 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 13:06:37,006 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 196 selfloop transitions, 188 changer transitions 2/388 dead transitions. [2023-08-30 13:06:37,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 388 transitions, 6404 flow [2023-08-30 13:06:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:37,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1736 transitions. [2023-08-30 13:06:37,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4626865671641791 [2023-08-30 13:06:37,009 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1736 transitions. [2023-08-30 13:06:37,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1736 transitions. [2023-08-30 13:06:37,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:37,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1736 transitions. [2023-08-30 13:06:37,011 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 13:06:37,013 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 13:06:37,013 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 13:06:37,013 INFO L175 Difference]: Start difference. First operand has 164 places, 263 transitions, 4223 flow. Second operand 14 states and 1736 transitions. [2023-08-30 13:06:37,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 388 transitions, 6404 flow [2023-08-30 13:06:37,177 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 13:06:37,182 INFO L231 Difference]: Finished difference. Result has 170 places, 329 transitions, 5393 flow [2023-08-30 13:06:37,182 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 13:06:37,183 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 13:06:37,183 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 329 transitions, 5393 flow [2023-08-30 13:06:37,183 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 13:06:37,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:37,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:37,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 13:06:37,184 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 13:06:37,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1348042412, now seen corresponding path program 1 times [2023-08-30 13:06:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284116910] [2023-08-30 13:06:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:37,362 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 13:06:37,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:37,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284116910] [2023-08-30 13:06:37,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284116910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:37,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:37,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:37,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232281083] [2023-08-30 13:06:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:37,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:37,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:37,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:37,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 13:06:37,397 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 13:06:37,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:37,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 13:06:37,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:37,917 INFO L130 PetriNetUnfolder]: 1797/3622 cut-off events. [2023-08-30 13:06:37,917 INFO L131 PetriNetUnfolder]: For 46054/46092 co-relation queries the response was YES. [2023-08-30 13:06:37,931 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 13:06:37,939 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 219 selfloop transitions, 21 changer transitions 14/284 dead transitions. [2023-08-30 13:06:37,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 284 transitions, 5059 flow [2023-08-30 13:06:37,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2023-08-30 13:06:37,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5087064676616916 [2023-08-30 13:06:37,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 818 transitions. [2023-08-30 13:06:37,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 818 transitions. [2023-08-30 13:06:37,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:37,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 818 transitions. [2023-08-30 13:06:37,942 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 13:06:37,943 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 13:06:37,943 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 13:06:37,943 INFO L175 Difference]: Start difference. First operand has 170 places, 329 transitions, 5393 flow. Second operand 6 states and 818 transitions. [2023-08-30 13:06:37,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 284 transitions, 5059 flow [2023-08-30 13:06:38,054 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 13:06:38,057 INFO L231 Difference]: Finished difference. Result has 153 places, 243 transitions, 3711 flow [2023-08-30 13:06:38,057 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 13:06:38,058 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 115 predicate places. [2023-08-30 13:06:38,058 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 243 transitions, 3711 flow [2023-08-30 13:06:38,058 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 13:06:38,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:38,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:38,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 13:06:38,059 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 13:06:38,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:38,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1460036471, now seen corresponding path program 1 times [2023-08-30 13:06:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:38,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497465309] [2023-08-30 13:06:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:38,824 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 13:06:38,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:38,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497465309] [2023-08-30 13:06:38,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497465309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:38,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:38,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:38,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850814275] [2023-08-30 13:06:38,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:38,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:38,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:38,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:38,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:39,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 268 [2023-08-30 13:06:39,381 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 13:06:39,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:39,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 268 [2023-08-30 13:06:39,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:41,391 INFO L130 PetriNetUnfolder]: 2098/4196 cut-off events. [2023-08-30 13:06:41,391 INFO L131 PetriNetUnfolder]: For 47197/47197 co-relation queries the response was YES. [2023-08-30 13:06:41,408 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 13:06:41,418 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 170 selfloop transitions, 191 changer transitions 0/363 dead transitions. [2023-08-30 13:06:41,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 363 transitions, 5993 flow [2023-08-30 13:06:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-30 13:06:41,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-30 13:06:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3168 transitions. [2023-08-30 13:06:41,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43781094527363185 [2023-08-30 13:06:41,421 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3168 transitions. [2023-08-30 13:06:41,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3168 transitions. [2023-08-30 13:06:41,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:41,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3168 transitions. [2023-08-30 13:06:41,424 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 13:06:41,427 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 13:06:41,428 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 13:06:41,428 INFO L175 Difference]: Start difference. First operand has 153 places, 243 transitions, 3711 flow. Second operand 27 states and 3168 transitions. [2023-08-30 13:06:41,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 363 transitions, 5993 flow [2023-08-30 13:06:41,526 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 13:06:41,531 INFO L231 Difference]: Finished difference. Result has 179 places, 320 transitions, 5402 flow [2023-08-30 13:06:41,531 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 13:06:41,531 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 141 predicate places. [2023-08-30 13:06:41,531 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 320 transitions, 5402 flow [2023-08-30 13:06:41,531 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 13:06:41,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:41,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:41,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 13:06:41,532 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 13:06:41,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:41,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2145868518, now seen corresponding path program 2 times [2023-08-30 13:06:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352777832] [2023-08-30 13:06:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:41,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:41,813 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 13:06:41,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:41,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352777832] [2023-08-30 13:06:41,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352777832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:41,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:41,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:41,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912516060] [2023-08-30 13:06:41,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:41,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:41,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:41,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:41,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:41,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 13:06:41,965 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 13:06:41,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:41,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 13:06:41,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:42,675 INFO L130 PetriNetUnfolder]: 2134/4292 cut-off events. [2023-08-30 13:06:42,675 INFO L131 PetriNetUnfolder]: For 57314/57314 co-relation queries the response was YES. [2023-08-30 13:06:42,693 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 13:06:42,705 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 324 selfloop transitions, 67 changer transitions 2/395 dead transitions. [2023-08-30 13:06:42,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 395 transitions, 7155 flow [2023-08-30 13:06:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 901 transitions. [2023-08-30 13:06:42,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4802771855010661 [2023-08-30 13:06:42,707 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 901 transitions. [2023-08-30 13:06:42,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 901 transitions. [2023-08-30 13:06:42,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:42,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 901 transitions. [2023-08-30 13:06:42,709 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 13:06:42,709 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 13:06:42,710 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 13:06:42,710 INFO L175 Difference]: Start difference. First operand has 179 places, 320 transitions, 5402 flow. Second operand 7 states and 901 transitions. [2023-08-30 13:06:42,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 395 transitions, 7155 flow [2023-08-30 13:06:42,905 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 13:06:42,910 INFO L231 Difference]: Finished difference. Result has 176 places, 335 transitions, 5710 flow [2023-08-30 13:06:42,910 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 13:06:42,911 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 138 predicate places. [2023-08-30 13:06:42,911 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 335 transitions, 5710 flow [2023-08-30 13:06:42,911 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 13:06:42,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:42,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:42,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 13:06:42,912 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 13:06:42,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 75349616, now seen corresponding path program 3 times [2023-08-30 13:06:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267366885] [2023-08-30 13:06:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:43,100 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 13:06:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267366885] [2023-08-30 13:06:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267366885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212964031] [2023-08-30 13:06:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:43,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:43,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:43,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:43,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 13:06:43,143 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 13:06:43,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:43,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 13:06:43,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:43,359 INFO L130 PetriNetUnfolder]: 370/1060 cut-off events. [2023-08-30 13:06:43,359 INFO L131 PetriNetUnfolder]: For 15690/15698 co-relation queries the response was YES. [2023-08-30 13:06:43,363 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 13:06:43,365 INFO L137 encePairwiseOnDemand]: 262/268 looper letters, 130 selfloop transitions, 15 changer transitions 20/186 dead transitions. [2023-08-30 13:06:43,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 186 transitions, 3281 flow [2023-08-30 13:06:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 808 transitions. [2023-08-30 13:06:43,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5024875621890548 [2023-08-30 13:06:43,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 808 transitions. [2023-08-30 13:06:43,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 808 transitions. [2023-08-30 13:06:43,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:43,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 808 transitions. [2023-08-30 13:06:43,367 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 13:06:43,368 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 13:06:43,368 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 13:06:43,369 INFO L175 Difference]: Start difference. First operand has 176 places, 335 transitions, 5710 flow. Second operand 6 states and 808 transitions. [2023-08-30 13:06:43,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 186 transitions, 3281 flow [2023-08-30 13:06:43,408 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 13:06:43,410 INFO L231 Difference]: Finished difference. Result has 157 places, 155 transitions, 2333 flow [2023-08-30 13:06:43,410 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 13:06:43,411 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 119 predicate places. [2023-08-30 13:06:43,411 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 155 transitions, 2333 flow [2023-08-30 13:06:43,411 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 13:06:43,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:43,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:43,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 13:06:43,412 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 13:06:43,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:43,412 INFO L85 PathProgramCache]: Analyzing trace with hash 892086494, now seen corresponding path program 1 times [2023-08-30 13:06:43,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:43,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66663148] [2023-08-30 13:06:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:43,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:43,820 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 13:06:43,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:43,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66663148] [2023-08-30 13:06:43,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66663148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:43,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:43,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:43,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187218361] [2023-08-30 13:06:43,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:43,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:43,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:43,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:43,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:44,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:44,157 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 13:06:44,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:44,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:44,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:44,567 INFO L130 PetriNetUnfolder]: 398/1218 cut-off events. [2023-08-30 13:06:44,567 INFO L131 PetriNetUnfolder]: For 12804/12804 co-relation queries the response was YES. [2023-08-30 13:06:44,572 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 13:06:44,575 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 194 selfloop transitions, 41 changer transitions 2/239 dead transitions. [2023-08-30 13:06:44,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 239 transitions, 3995 flow [2023-08-30 13:06:44,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:44,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1513 transitions. [2023-08-30 13:06:44,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4704601990049751 [2023-08-30 13:06:44,577 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1513 transitions. [2023-08-30 13:06:44,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1513 transitions. [2023-08-30 13:06:44,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:44,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1513 transitions. [2023-08-30 13:06:44,579 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 13:06:44,581 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 13:06:44,581 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 13:06:44,581 INFO L175 Difference]: Start difference. First operand has 157 places, 155 transitions, 2333 flow. Second operand 12 states and 1513 transitions. [2023-08-30 13:06:44,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 239 transitions, 3995 flow [2023-08-30 13:06:44,617 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 13:06:44,620 INFO L231 Difference]: Finished difference. Result has 163 places, 191 transitions, 3014 flow [2023-08-30 13:06:44,620 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 13:06:44,620 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2023-08-30 13:06:44,620 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 191 transitions, 3014 flow [2023-08-30 13:06:44,621 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 13:06:44,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:44,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:44,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 13:06:44,621 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 13:06:44,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:44,622 INFO L85 PathProgramCache]: Analyzing trace with hash 337973894, now seen corresponding path program 2 times [2023-08-30 13:06:44,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:44,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130507269] [2023-08-30 13:06:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:45,006 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 13:06:45,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130507269] [2023-08-30 13:06:45,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130507269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:45,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:45,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:45,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932252402] [2023-08-30 13:06:45,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:45,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:45,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:45,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:45,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 268 [2023-08-30 13:06:45,201 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 13:06:45,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:45,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 268 [2023-08-30 13:06:45,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:45,576 INFO L130 PetriNetUnfolder]: 404/1233 cut-off events. [2023-08-30 13:06:45,576 INFO L131 PetriNetUnfolder]: For 13659/13659 co-relation queries the response was YES. [2023-08-30 13:06:45,581 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 13:06:45,583 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 202 selfloop transitions, 48 changer transitions 3/255 dead transitions. [2023-08-30 13:06:45,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 255 transitions, 4349 flow [2023-08-30 13:06:45,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1639 transitions. [2023-08-30 13:06:45,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47043628013777267 [2023-08-30 13:06:45,585 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1639 transitions. [2023-08-30 13:06:45,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1639 transitions. [2023-08-30 13:06:45,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:45,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1639 transitions. [2023-08-30 13:06:45,587 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 13:06:45,589 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 13:06:45,589 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 13:06:45,589 INFO L175 Difference]: Start difference. First operand has 163 places, 191 transitions, 3014 flow. Second operand 13 states and 1639 transitions. [2023-08-30 13:06:45,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 255 transitions, 4349 flow [2023-08-30 13:06:45,632 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 13:06:45,635 INFO L231 Difference]: Finished difference. Result has 177 places, 203 transitions, 3294 flow [2023-08-30 13:06:45,636 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 13:06:45,636 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 139 predicate places. [2023-08-30 13:06:45,636 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 203 transitions, 3294 flow [2023-08-30 13:06:45,637 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 13:06:45,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:45,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:45,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 13:06:45,637 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 13:06:45,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2012982921, now seen corresponding path program 1 times [2023-08-30 13:06:45,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:45,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075986082] [2023-08-30 13:06:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:45,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:46,170 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 13:06:46,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:46,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075986082] [2023-08-30 13:06:46,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075986082] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:46,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:46,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:46,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921468357] [2023-08-30 13:06:46,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:46,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:46,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:46,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:46,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:46,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:46,649 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 13:06:46,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:46,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:46,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:47,343 INFO L130 PetriNetUnfolder]: 422/1295 cut-off events. [2023-08-30 13:06:47,343 INFO L131 PetriNetUnfolder]: For 14449/14449 co-relation queries the response was YES. [2023-08-30 13:06:47,349 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 13:06:47,352 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 171 selfloop transitions, 67 changer transitions 1/241 dead transitions. [2023-08-30 13:06:47,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 241 transitions, 4276 flow [2023-08-30 13:06:47,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1860 transitions. [2023-08-30 13:06:47,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4626865671641791 [2023-08-30 13:06:47,355 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1860 transitions. [2023-08-30 13:06:47,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1860 transitions. [2023-08-30 13:06:47,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:47,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1860 transitions. [2023-08-30 13:06:47,357 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 13:06:47,359 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 13:06:47,359 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 13:06:47,359 INFO L175 Difference]: Start difference. First operand has 177 places, 203 transitions, 3294 flow. Second operand 15 states and 1860 transitions. [2023-08-30 13:06:47,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 241 transitions, 4276 flow [2023-08-30 13:06:47,414 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 13:06:47,417 INFO L231 Difference]: Finished difference. Result has 189 places, 213 transitions, 3617 flow [2023-08-30 13:06:47,418 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 13:06:47,418 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 151 predicate places. [2023-08-30 13:06:47,418 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 213 transitions, 3617 flow [2023-08-30 13:06:47,418 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 13:06:47,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:47,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:47,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 13:06:47,419 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 13:06:47,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1817098211, now seen corresponding path program 1 times [2023-08-30 13:06:47,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:47,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242086457] [2023-08-30 13:06:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:47,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:47,955 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 13:06:47,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:47,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242086457] [2023-08-30 13:06:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242086457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:47,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:47,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039650063] [2023-08-30 13:06:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:48,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:48,314 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 13:06:48,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:48,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:48,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:48,804 INFO L130 PetriNetUnfolder]: 507/1550 cut-off events. [2023-08-30 13:06:48,804 INFO L131 PetriNetUnfolder]: For 18587/18587 co-relation queries the response was YES. [2023-08-30 13:06:48,811 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 13:06:48,815 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 210 selfloop transitions, 60 changer transitions 2/274 dead transitions. [2023-08-30 13:06:48,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 274 transitions, 5037 flow [2023-08-30 13:06:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:48,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1239 transitions. [2023-08-30 13:06:48,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4623134328358209 [2023-08-30 13:06:48,816 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1239 transitions. [2023-08-30 13:06:48,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1239 transitions. [2023-08-30 13:06:48,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:48,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1239 transitions. [2023-08-30 13:06:48,818 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 13:06:48,819 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 13:06:48,819 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 13:06:48,819 INFO L175 Difference]: Start difference. First operand has 189 places, 213 transitions, 3617 flow. Second operand 10 states and 1239 transitions. [2023-08-30 13:06:48,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 274 transitions, 5037 flow [2023-08-30 13:06:48,885 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 13:06:48,889 INFO L231 Difference]: Finished difference. Result has 193 places, 241 transitions, 4154 flow [2023-08-30 13:06:48,889 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 13:06:48,889 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 155 predicate places. [2023-08-30 13:06:48,889 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 241 transitions, 4154 flow [2023-08-30 13:06:48,890 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 13:06:48,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:48,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:48,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 13:06:48,890 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 13:06:48,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1242509412, now seen corresponding path program 3 times [2023-08-30 13:06:48,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:48,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499960929] [2023-08-30 13:06:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:48,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:49,317 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 13:06:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499960929] [2023-08-30 13:06:49,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499960929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:49,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:49,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:49,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526781090] [2023-08-30 13:06:49,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:49,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:49,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:49,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:49,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:49,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:49,725 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 13:06:49,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:49,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:49,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:50,451 INFO L130 PetriNetUnfolder]: 682/2078 cut-off events. [2023-08-30 13:06:50,451 INFO L131 PetriNetUnfolder]: For 26853/26853 co-relation queries the response was YES. [2023-08-30 13:06:50,460 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 13:06:50,464 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 222 selfloop transitions, 143 changer transitions 4/371 dead transitions. [2023-08-30 13:06:50,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 371 transitions, 6866 flow [2023-08-30 13:06:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 13:06:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 13:06:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2733 transitions. [2023-08-30 13:06:50,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4635345997286296 [2023-08-30 13:06:50,466 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2733 transitions. [2023-08-30 13:06:50,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2733 transitions. [2023-08-30 13:06:50,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:50,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2733 transitions. [2023-08-30 13:06:50,469 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 13:06:50,472 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 13:06:50,472 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 13:06:50,472 INFO L175 Difference]: Start difference. First operand has 193 places, 241 transitions, 4154 flow. Second operand 22 states and 2733 transitions. [2023-08-30 13:06:50,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 371 transitions, 6866 flow [2023-08-30 13:06:50,562 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 13:06:50,567 INFO L231 Difference]: Finished difference. Result has 215 places, 291 transitions, 5520 flow [2023-08-30 13:06:50,567 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 13:06:50,567 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 177 predicate places. [2023-08-30 13:06:50,567 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 291 transitions, 5520 flow [2023-08-30 13:06:50,568 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 13:06:50,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:50,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:50,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 13:06:50,568 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 13:06:50,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1242509413, now seen corresponding path program 2 times [2023-08-30 13:06:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:50,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942255698] [2023-08-30 13:06:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:50,823 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 13:06:50,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:50,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942255698] [2023-08-30 13:06:50,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942255698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:50,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:50,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:50,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568178180] [2023-08-30 13:06:50,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:50,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:50,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:50,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:50,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:51,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 13:06:51,033 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 13:06:51,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:51,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 13:06:51,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:51,610 INFO L130 PetriNetUnfolder]: 776/2439 cut-off events. [2023-08-30 13:06:51,610 INFO L131 PetriNetUnfolder]: For 34235/34254 co-relation queries the response was YES. [2023-08-30 13:06:51,622 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 13:06:51,626 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 204 selfloop transitions, 124 changer transitions 3/365 dead transitions. [2023-08-30 13:06:51,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 365 transitions, 7124 flow [2023-08-30 13:06:51,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1346 transitions. [2023-08-30 13:06:51,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5022388059701492 [2023-08-30 13:06:51,629 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1346 transitions. [2023-08-30 13:06:51,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1346 transitions. [2023-08-30 13:06:51,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:51,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1346 transitions. [2023-08-30 13:06:51,631 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 13:06:51,632 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 13:06:51,632 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 13:06:51,633 INFO L175 Difference]: Start difference. First operand has 215 places, 291 transitions, 5520 flow. Second operand 10 states and 1346 transitions. [2023-08-30 13:06:51,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 365 transitions, 7124 flow [2023-08-30 13:06:51,757 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 13:06:51,762 INFO L231 Difference]: Finished difference. Result has 218 places, 306 transitions, 5996 flow [2023-08-30 13:06:51,762 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 13:06:51,762 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 180 predicate places. [2023-08-30 13:06:51,762 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 306 transitions, 5996 flow [2023-08-30 13:06:51,763 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 13:06:51,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:51,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:51,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 13:06:51,763 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 13:06:51,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:51,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1781135286, now seen corresponding path program 4 times [2023-08-30 13:06:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:51,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488192848] [2023-08-30 13:06:51,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:51,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:52,216 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 13:06:52,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:52,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488192848] [2023-08-30 13:06:52,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488192848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:52,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:52,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:52,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475012543] [2023-08-30 13:06:52,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:52,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:52,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:52,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:52,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:52,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:52,498 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 13:06:52,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:52,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:52,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:53,243 INFO L130 PetriNetUnfolder]: 829/2544 cut-off events. [2023-08-30 13:06:53,244 INFO L131 PetriNetUnfolder]: For 40587/40587 co-relation queries the response was YES. [2023-08-30 13:06:53,256 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 13:06:53,260 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 248 selfloop transitions, 129 changer transitions 3/382 dead transitions. [2023-08-30 13:06:53,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 382 transitions, 8041 flow [2023-08-30 13:06:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:53,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1745 transitions. [2023-08-30 13:06:53,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650852878464819 [2023-08-30 13:06:53,262 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1745 transitions. [2023-08-30 13:06:53,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1745 transitions. [2023-08-30 13:06:53,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:53,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1745 transitions. [2023-08-30 13:06:53,264 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 13:06:53,266 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 13:06:53,266 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 13:06:53,266 INFO L175 Difference]: Start difference. First operand has 218 places, 306 transitions, 5996 flow. Second operand 14 states and 1745 transitions. [2023-08-30 13:06:53,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 382 transitions, 8041 flow [2023-08-30 13:06:53,411 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 13:06:53,416 INFO L231 Difference]: Finished difference. Result has 232 places, 322 transitions, 6723 flow [2023-08-30 13:06:53,416 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 13:06:53,417 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 194 predicate places. [2023-08-30 13:06:53,417 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 322 transitions, 6723 flow [2023-08-30 13:06:53,417 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 13:06:53,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:53,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:53,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 13:06:53,417 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 13:06:53,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:53,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1796622013, now seen corresponding path program 3 times [2023-08-30 13:06:53,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:53,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838766991] [2023-08-30 13:06:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:53,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:53,646 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 13:06:53,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:53,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838766991] [2023-08-30 13:06:53,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838766991] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:53,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:53,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:53,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941932622] [2023-08-30 13:06:53,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:53,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:53,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:53,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:53,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:53,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 13:06:53,880 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 13:06:53,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:53,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 13:06:53,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:54,503 INFO L130 PetriNetUnfolder]: 836/2591 cut-off events. [2023-08-30 13:06:54,504 INFO L131 PetriNetUnfolder]: For 42781/42797 co-relation queries the response was YES. [2023-08-30 13:06:54,516 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 13:06:54,521 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 180 selfloop transitions, 177 changer transitions 3/395 dead transitions. [2023-08-30 13:06:54,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 395 transitions, 8409 flow [2023-08-30 13:06:54,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:54,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1602 transitions. [2023-08-30 13:06:54,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498134328358209 [2023-08-30 13:06:54,523 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1602 transitions. [2023-08-30 13:06:54,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1602 transitions. [2023-08-30 13:06:54,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:54,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1602 transitions. [2023-08-30 13:06:54,525 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 13:06:54,526 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 13:06:54,526 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 13:06:54,527 INFO L175 Difference]: Start difference. First operand has 232 places, 322 transitions, 6723 flow. Second operand 12 states and 1602 transitions. [2023-08-30 13:06:54,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 395 transitions, 8409 flow [2023-08-30 13:06:54,670 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 13:06:54,675 INFO L231 Difference]: Finished difference. Result has 235 places, 344 transitions, 7576 flow [2023-08-30 13:06:54,675 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 13:06:54,676 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 197 predicate places. [2023-08-30 13:06:54,676 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 344 transitions, 7576 flow [2023-08-30 13:06:54,676 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 13:06:54,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:54,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:54,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 13:06:54,677 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 13:06:54,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash -369290274, now seen corresponding path program 5 times [2023-08-30 13:06:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:54,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068078422] [2023-08-30 13:06:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:55,085 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 13:06:55,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:55,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068078422] [2023-08-30 13:06:55,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068078422] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:55,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:55,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:55,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439414603] [2023-08-30 13:06:55,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:55,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:55,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:55,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:55,322 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 13:06:55,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:55,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:55,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:56,105 INFO L130 PetriNetUnfolder]: 878/2672 cut-off events. [2023-08-30 13:06:56,106 INFO L131 PetriNetUnfolder]: For 51785/51785 co-relation queries the response was YES. [2023-08-30 13:06:56,119 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 13:06:56,124 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 267 selfloop transitions, 132 changer transitions 3/404 dead transitions. [2023-08-30 13:06:56,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 404 transitions, 9405 flow [2023-08-30 13:06:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:56,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:56,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1743 transitions. [2023-08-30 13:06:56,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46455223880597013 [2023-08-30 13:06:56,127 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1743 transitions. [2023-08-30 13:06:56,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1743 transitions. [2023-08-30 13:06:56,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:56,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1743 transitions. [2023-08-30 13:06:56,128 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 13:06:56,150 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 13:06:56,150 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 13:06:56,150 INFO L175 Difference]: Start difference. First operand has 235 places, 344 transitions, 7576 flow. Second operand 14 states and 1743 transitions. [2023-08-30 13:06:56,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 404 transitions, 9405 flow [2023-08-30 13:06:56,321 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 13:06:56,327 INFO L231 Difference]: Finished difference. Result has 241 places, 344 transitions, 7730 flow [2023-08-30 13:06:56,327 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 13:06:56,327 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 203 predicate places. [2023-08-30 13:06:56,328 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 344 transitions, 7730 flow [2023-08-30 13:06:56,328 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 13:06:56,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:56,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:56,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 13:06:56,328 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 13:06:56,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:56,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2058923693, now seen corresponding path program 4 times [2023-08-30 13:06:56,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:56,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596034927] [2023-08-30 13:06:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:56,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:56,797 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 13:06:56,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:56,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596034927] [2023-08-30 13:06:56,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596034927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:56,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:56,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:56,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096945766] [2023-08-30 13:06:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:56,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:56,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:56,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:56,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:57,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:06:57,117 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 13:06:57,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:57,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:06:57,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:57,816 INFO L130 PetriNetUnfolder]: 872/2646 cut-off events. [2023-08-30 13:06:57,816 INFO L131 PetriNetUnfolder]: For 51458/51458 co-relation queries the response was YES. [2023-08-30 13:06:57,830 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 13:06:57,835 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 326 selfloop transitions, 46 changer transitions 2/376 dead transitions. [2023-08-30 13:06:57,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 376 transitions, 8947 flow [2023-08-30 13:06:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1235 transitions. [2023-08-30 13:06:57,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4608208955223881 [2023-08-30 13:06:57,837 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1235 transitions. [2023-08-30 13:06:57,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1235 transitions. [2023-08-30 13:06:57,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:57,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1235 transitions. [2023-08-30 13:06:57,838 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 13:06:57,839 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 13:06:57,839 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 13:06:57,839 INFO L175 Difference]: Start difference. First operand has 241 places, 344 transitions, 7730 flow. Second operand 10 states and 1235 transitions. [2023-08-30 13:06:57,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 376 transitions, 8947 flow [2023-08-30 13:06:57,999 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 13:06:58,005 INFO L231 Difference]: Finished difference. Result has 239 places, 348 transitions, 7720 flow [2023-08-30 13:06:58,005 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 13:06:58,005 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 201 predicate places. [2023-08-30 13:06:58,005 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 348 transitions, 7720 flow [2023-08-30 13:06:58,006 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 13:06:58,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:58,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:58,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 13:06:58,006 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 13:06:58,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2012982920, now seen corresponding path program 1 times [2023-08-30 13:06:58,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:58,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420145406] [2023-08-30 13:06:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:58,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:58,471 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 13:06:58,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:58,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420145406] [2023-08-30 13:06:58,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420145406] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:58,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:58,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:58,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930682230] [2023-08-30 13:06:58,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:58,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:58,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:58,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:58,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:06:58,780 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 13:06:58,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:58,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:06:58,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:59,599 INFO L130 PetriNetUnfolder]: 869/2647 cut-off events. [2023-08-30 13:06:59,600 INFO L131 PetriNetUnfolder]: For 50014/50014 co-relation queries the response was YES. [2023-08-30 13:06:59,613 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 13:06:59,618 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 305 selfloop transitions, 58 changer transitions 1/366 dead transitions. [2023-08-30 13:06:59,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 366 transitions, 8707 flow [2023-08-30 13:06:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:59,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1846 transitions. [2023-08-30 13:06:59,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592039800995025 [2023-08-30 13:06:59,623 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1846 transitions. [2023-08-30 13:06:59,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1846 transitions. [2023-08-30 13:06:59,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:59,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1846 transitions. [2023-08-30 13:06:59,625 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 13:06:59,627 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 13:06:59,627 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 13:06:59,627 INFO L175 Difference]: Start difference. First operand has 239 places, 348 transitions, 7720 flow. Second operand 15 states and 1846 transitions. [2023-08-30 13:06:59,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 366 transitions, 8707 flow [2023-08-30 13:06:59,794 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 13:06:59,800 INFO L231 Difference]: Finished difference. Result has 250 places, 353 transitions, 7847 flow [2023-08-30 13:06:59,800 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 13:06:59,800 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 212 predicate places. [2023-08-30 13:06:59,801 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 353 transitions, 7847 flow [2023-08-30 13:06:59,801 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 13:06:59,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:59,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:59,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 13:06:59,801 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 13:06:59,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:59,802 INFO L85 PathProgramCache]: Analyzing trace with hash 351056105, now seen corresponding path program 5 times [2023-08-30 13:06:59,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:59,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791585454] [2023-08-30 13:06:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:59,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:00,194 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 13:07:00,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:00,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791585454] [2023-08-30 13:07:00,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791585454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:00,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:00,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:07:00,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215930334] [2023-08-30 13:07:00,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:00,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:07:00,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:00,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:07:00,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:07:00,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:07:00,497 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 13:07:00,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:00,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:07:00,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:01,223 INFO L130 PetriNetUnfolder]: 868/2636 cut-off events. [2023-08-30 13:07:01,223 INFO L131 PetriNetUnfolder]: For 48708/48708 co-relation queries the response was YES. [2023-08-30 13:07:01,238 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 13:07:01,243 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 248 selfloop transitions, 172 changer transitions 3/425 dead transitions. [2023-08-30 13:07:01,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 425 transitions, 9779 flow [2023-08-30 13:07:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:01,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1608 transitions. [2023-08-30 13:07:01,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2023-08-30 13:07:01,245 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1608 transitions. [2023-08-30 13:07:01,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1608 transitions. [2023-08-30 13:07:01,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:01,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1608 transitions. [2023-08-30 13:07:01,247 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 13:07:01,248 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 13:07:01,248 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 13:07:01,249 INFO L175 Difference]: Start difference. First operand has 250 places, 353 transitions, 7847 flow. Second operand 13 states and 1608 transitions. [2023-08-30 13:07:01,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 425 transitions, 9779 flow [2023-08-30 13:07:01,416 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 13:07:01,423 INFO L231 Difference]: Finished difference. Result has 253 places, 365 transitions, 8497 flow [2023-08-30 13:07:01,423 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 13:07:01,423 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 215 predicate places. [2023-08-30 13:07:01,423 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 365 transitions, 8497 flow [2023-08-30 13:07:01,424 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 13:07:01,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:01,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:01,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 13:07:01,424 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 13:07:01,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:01,425 INFO L85 PathProgramCache]: Analyzing trace with hash -453857226, now seen corresponding path program 1 times [2023-08-30 13:07:01,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:01,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462108448] [2023-08-30 13:07:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:02,041 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 13:07:02,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:02,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462108448] [2023-08-30 13:07:02,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462108448] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:02,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:02,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:02,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762917159] [2023-08-30 13:07:02,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:02,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:02,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:02,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:02,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:07:02,478 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 13:07:02,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:02,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:07:02,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:03,412 INFO L130 PetriNetUnfolder]: 910/2740 cut-off events. [2023-08-30 13:07:03,412 INFO L131 PetriNetUnfolder]: For 54510/54510 co-relation queries the response was YES. [2023-08-30 13:07:03,428 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 13:07:03,433 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 323 selfloop transitions, 94 changer transitions 2/421 dead transitions. [2023-08-30 13:07:03,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 421 transitions, 10274 flow [2023-08-30 13:07:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1603 transitions. [2023-08-30 13:07:03,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601033295063146 [2023-08-30 13:07:03,435 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1603 transitions. [2023-08-30 13:07:03,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1603 transitions. [2023-08-30 13:07:03,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:03,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1603 transitions. [2023-08-30 13:07:03,437 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 13:07:03,438 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 13:07:03,438 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 13:07:03,438 INFO L175 Difference]: Start difference. First operand has 253 places, 365 transitions, 8497 flow. Second operand 13 states and 1603 transitions. [2023-08-30 13:07:03,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 421 transitions, 10274 flow [2023-08-30 13:07:03,617 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 13:07:03,623 INFO L231 Difference]: Finished difference. Result has 262 places, 383 transitions, 8973 flow [2023-08-30 13:07:03,624 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 13:07:03,624 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 224 predicate places. [2023-08-30 13:07:03,624 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 383 transitions, 8973 flow [2023-08-30 13:07:03,624 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 13:07:03,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:03,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:03,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 13:07:03,625 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 13:07:03,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash 619881838, now seen corresponding path program 2 times [2023-08-30 13:07:03,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:03,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306226638] [2023-08-30 13:07:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:03,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:04,216 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 13:07:04,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:04,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306226638] [2023-08-30 13:07:04,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306226638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:04,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:04,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:04,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320812708] [2023-08-30 13:07:04,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:04,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:04,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:04,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:04,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:07:04,644 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 13:07:04,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:04,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:07:04,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:05,655 INFO L130 PetriNetUnfolder]: 990/2929 cut-off events. [2023-08-30 13:07:05,655 INFO L131 PetriNetUnfolder]: For 61023/61023 co-relation queries the response was YES. [2023-08-30 13:07:05,672 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 13:07:05,678 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 289 selfloop transitions, 175 changer transitions 3/469 dead transitions. [2023-08-30 13:07:05,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 469 transitions, 11384 flow [2023-08-30 13:07:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:05,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1722 transitions. [2023-08-30 13:07:05,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.458955223880597 [2023-08-30 13:07:05,680 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1722 transitions. [2023-08-30 13:07:05,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1722 transitions. [2023-08-30 13:07:05,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:05,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1722 transitions. [2023-08-30 13:07:05,682 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 13:07:05,683 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 13:07:05,684 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 13:07:05,684 INFO L175 Difference]: Start difference. First operand has 262 places, 383 transitions, 8973 flow. Second operand 14 states and 1722 transitions. [2023-08-30 13:07:05,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 469 transitions, 11384 flow [2023-08-30 13:07:05,885 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 13:07:05,892 INFO L231 Difference]: Finished difference. Result has 269 places, 408 transitions, 9782 flow [2023-08-30 13:07:05,892 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 13:07:05,893 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 231 predicate places. [2023-08-30 13:07:05,893 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 408 transitions, 9782 flow [2023-08-30 13:07:05,893 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 13:07:05,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:05,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:05,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 13:07:05,894 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 13:07:05,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash -791552035, now seen corresponding path program 1 times [2023-08-30 13:07:05,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:05,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472490577] [2023-08-30 13:07:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:05,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:06,538 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 13:07:06,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:06,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472490577] [2023-08-30 13:07:06,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472490577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:06,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:06,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:06,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734945544] [2023-08-30 13:07:06,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:07,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 268 [2023-08-30 13:07:07,052 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 13:07:07,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:07,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 268 [2023-08-30 13:07:07,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:08,185 INFO L130 PetriNetUnfolder]: 984/2951 cut-off events. [2023-08-30 13:07:08,185 INFO L131 PetriNetUnfolder]: For 63295/63295 co-relation queries the response was YES. [2023-08-30 13:07:08,203 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 13:07:08,209 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 344 selfloop transitions, 98 changer transitions 3/447 dead transitions. [2023-08-30 13:07:08,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 447 transitions, 11215 flow [2023-08-30 13:07:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:08,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1702 transitions. [2023-08-30 13:07:08,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45362473347547977 [2023-08-30 13:07:08,213 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1702 transitions. [2023-08-30 13:07:08,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1702 transitions. [2023-08-30 13:07:08,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:08,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1702 transitions. [2023-08-30 13:07:08,215 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 13:07:08,216 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 13:07:08,217 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 13:07:08,217 INFO L175 Difference]: Start difference. First operand has 269 places, 408 transitions, 9782 flow. Second operand 14 states and 1702 transitions. [2023-08-30 13:07:08,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 447 transitions, 11215 flow [2023-08-30 13:07:08,439 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 13:07:08,447 INFO L231 Difference]: Finished difference. Result has 281 places, 415 transitions, 10095 flow [2023-08-30 13:07:08,447 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 13:07:08,447 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 243 predicate places. [2023-08-30 13:07:08,447 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 415 transitions, 10095 flow [2023-08-30 13:07:08,448 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 13:07:08,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:08,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:08,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 13:07:08,448 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 13:07:08,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1311664907, now seen corresponding path program 1 times [2023-08-30 13:07:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614076000] [2023-08-30 13:07:08,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:08,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:08,692 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 13:07:08,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:08,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614076000] [2023-08-30 13:07:08,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614076000] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:08,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:08,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:07:08,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464827219] [2023-08-30 13:07:08,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:08,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:08,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:08,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:08,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:08,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 13:07:08,909 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 13:07:08,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:08,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 13:07:08,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:09,700 INFO L130 PetriNetUnfolder]: 933/2814 cut-off events. [2023-08-30 13:07:09,701 INFO L131 PetriNetUnfolder]: For 61587/61594 co-relation queries the response was YES. [2023-08-30 13:07:09,716 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 13:07:09,721 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 283 selfloop transitions, 112 changer transitions 3/445 dead transitions. [2023-08-30 13:07:09,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 445 transitions, 11163 flow [2023-08-30 13:07:09,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:07:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:07:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1209 transitions. [2023-08-30 13:07:09,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5012437810945274 [2023-08-30 13:07:09,723 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1209 transitions. [2023-08-30 13:07:09,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1209 transitions. [2023-08-30 13:07:09,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:09,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1209 transitions. [2023-08-30 13:07:09,724 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 13:07:09,725 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 13:07:09,725 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 13:07:09,725 INFO L175 Difference]: Start difference. First operand has 281 places, 415 transitions, 10095 flow. Second operand 9 states and 1209 transitions. [2023-08-30 13:07:09,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 445 transitions, 11163 flow [2023-08-30 13:07:09,945 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 13:07:09,952 INFO L231 Difference]: Finished difference. Result has 287 places, 410 transitions, 10240 flow [2023-08-30 13:07:09,952 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 13:07:09,952 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 249 predicate places. [2023-08-30 13:07:09,953 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 410 transitions, 10240 flow [2023-08-30 13:07:09,953 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 13:07:09,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:09,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:09,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 13:07:09,953 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 13:07:09,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:09,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1437404250, now seen corresponding path program 3 times [2023-08-30 13:07:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:09,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893798865] [2023-08-30 13:07:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:09,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:10,559 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 13:07:10,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:10,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893798865] [2023-08-30 13:07:10,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893798865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:10,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:10,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:10,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986604665] [2023-08-30 13:07:10,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:10,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:10,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:10,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:10,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:10,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:07:10,950 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 13:07:10,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:10,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:07:10,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:12,005 INFO L130 PetriNetUnfolder]: 970/2861 cut-off events. [2023-08-30 13:07:12,006 INFO L131 PetriNetUnfolder]: For 65267/65267 co-relation queries the response was YES. [2023-08-30 13:07:12,024 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 13:07:12,031 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 277 selfloop transitions, 181 changer transitions 3/463 dead transitions. [2023-08-30 13:07:12,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 463 transitions, 12005 flow [2023-08-30 13:07:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:12,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1717 transitions. [2023-08-30 13:07:12,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4576226012793177 [2023-08-30 13:07:12,057 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1717 transitions. [2023-08-30 13:07:12,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1717 transitions. [2023-08-30 13:07:12,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:12,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1717 transitions. [2023-08-30 13:07:12,059 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 13:07:12,060 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 13:07:12,061 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 13:07:12,061 INFO L175 Difference]: Start difference. First operand has 287 places, 410 transitions, 10240 flow. Second operand 14 states and 1717 transitions. [2023-08-30 13:07:12,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 463 transitions, 12005 flow [2023-08-30 13:07:12,307 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 13:07:12,315 INFO L231 Difference]: Finished difference. Result has 294 places, 408 transitions, 10276 flow [2023-08-30 13:07:12,315 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 13:07:12,315 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 256 predicate places. [2023-08-30 13:07:12,315 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 408 transitions, 10276 flow [2023-08-30 13:07:12,316 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 13:07:12,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:12,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:12,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 13:07:12,316 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 13:07:12,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:12,316 INFO L85 PathProgramCache]: Analyzing trace with hash -791552034, now seen corresponding path program 1 times [2023-08-30 13:07:12,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:12,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452523935] [2023-08-30 13:07:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:12,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:12,920 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 13:07:12,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:12,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452523935] [2023-08-30 13:07:12,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452523935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:12,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:12,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:12,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061438497] [2023-08-30 13:07:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:12,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:12,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:12,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:13,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 268 [2023-08-30 13:07:13,435 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 13:07:13,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:13,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 268 [2023-08-30 13:07:13,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:14,496 INFO L130 PetriNetUnfolder]: 976/2858 cut-off events. [2023-08-30 13:07:14,496 INFO L131 PetriNetUnfolder]: For 62458/62458 co-relation queries the response was YES. [2023-08-30 13:07:14,512 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 13:07:14,518 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 341 selfloop transitions, 80 changer transitions 8/431 dead transitions. [2023-08-30 13:07:14,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 431 transitions, 11538 flow [2023-08-30 13:07:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1689 transitions. [2023-08-30 13:07:14,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4501599147121535 [2023-08-30 13:07:14,520 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1689 transitions. [2023-08-30 13:07:14,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1689 transitions. [2023-08-30 13:07:14,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:14,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1689 transitions. [2023-08-30 13:07:14,522 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 13:07:14,524 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 13:07:14,524 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 13:07:14,524 INFO L175 Difference]: Start difference. First operand has 294 places, 408 transitions, 10276 flow. Second operand 14 states and 1689 transitions. [2023-08-30 13:07:14,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 431 transitions, 11538 flow [2023-08-30 13:07:14,753 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 13:07:14,760 INFO L231 Difference]: Finished difference. Result has 298 places, 408 transitions, 10247 flow [2023-08-30 13:07:14,760 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 13:07:14,761 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 260 predicate places. [2023-08-30 13:07:14,761 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 408 transitions, 10247 flow [2023-08-30 13:07:14,761 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 13:07:14,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:14,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:14,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 13:07:14,762 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 13:07:14,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:14,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2022476476, now seen corresponding path program 2 times [2023-08-30 13:07:14,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:14,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788288380] [2023-08-30 13:07:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:15,295 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 13:07:15,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:15,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788288380] [2023-08-30 13:07:15,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788288380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:15,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:15,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075829892] [2023-08-30 13:07:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:15,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:15,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:15,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:15,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:15,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:07:15,727 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 13:07:15,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:15,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:07:15,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:16,795 INFO L130 PetriNetUnfolder]: 981/2895 cut-off events. [2023-08-30 13:07:16,796 INFO L131 PetriNetUnfolder]: For 61107/61107 co-relation queries the response was YES. [2023-08-30 13:07:16,816 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 13:07:16,824 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 339 selfloop transitions, 90 changer transitions 6/437 dead transitions. [2023-08-30 13:07:16,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 437 transitions, 11493 flow [2023-08-30 13:07:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:07:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:07:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1834 transitions. [2023-08-30 13:07:16,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4562189054726368 [2023-08-30 13:07:16,826 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1834 transitions. [2023-08-30 13:07:16,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1834 transitions. [2023-08-30 13:07:16,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:16,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1834 transitions. [2023-08-30 13:07:16,828 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 13:07:16,830 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 13:07:16,830 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 13:07:16,830 INFO L175 Difference]: Start difference. First operand has 298 places, 408 transitions, 10247 flow. Second operand 15 states and 1834 transitions. [2023-08-30 13:07:16,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 437 transitions, 11493 flow [2023-08-30 13:07:17,084 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 13:07:17,092 INFO L231 Difference]: Finished difference. Result has 295 places, 409 transitions, 10169 flow [2023-08-30 13:07:17,093 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 13:07:17,093 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 257 predicate places. [2023-08-30 13:07:17,093 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 409 transitions, 10169 flow [2023-08-30 13:07:17,093 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 13:07:17,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:17,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:17,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 13:07:17,094 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 13:07:17,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2022101686, now seen corresponding path program 3 times [2023-08-30 13:07:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:17,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772074242] [2023-08-30 13:07:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:17,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:17,666 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 13:07:17,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:17,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772074242] [2023-08-30 13:07:17,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772074242] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:17,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:17,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:17,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050873836] [2023-08-30 13:07:17,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:17,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:17,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:17,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:17,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:18,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 268 [2023-08-30 13:07:18,172 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 13:07:18,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:18,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 268 [2023-08-30 13:07:18,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:19,138 INFO L130 PetriNetUnfolder]: 977/2866 cut-off events. [2023-08-30 13:07:19,138 INFO L131 PetriNetUnfolder]: For 60144/60144 co-relation queries the response was YES. [2023-08-30 13:07:19,152 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 13:07:19,157 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 341 selfloop transitions, 75 changer transitions 8/426 dead transitions. [2023-08-30 13:07:19,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 426 transitions, 11183 flow [2023-08-30 13:07:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:19,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1705 transitions. [2023-08-30 13:07:19,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4544243070362473 [2023-08-30 13:07:19,158 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1705 transitions. [2023-08-30 13:07:19,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1705 transitions. [2023-08-30 13:07:19,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:19,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1705 transitions. [2023-08-30 13:07:19,160 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 13:07:19,161 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 13:07:19,162 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 13:07:19,162 INFO L175 Difference]: Start difference. First operand has 295 places, 409 transitions, 10169 flow. Second operand 14 states and 1705 transitions. [2023-08-30 13:07:19,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 426 transitions, 11183 flow [2023-08-30 13:07:19,351 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 13:07:19,359 INFO L231 Difference]: Finished difference. Result has 295 places, 402 transitions, 9934 flow [2023-08-30 13:07:19,359 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 13:07:19,359 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 257 predicate places. [2023-08-30 13:07:19,359 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 402 transitions, 9934 flow [2023-08-30 13:07:19,360 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 13:07:19,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:19,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:19,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 13:07:19,360 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 13:07:19,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1623289245, now seen corresponding path program 1 times [2023-08-30 13:07:19,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:19,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413697193] [2023-08-30 13:07:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:19,760 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 13:07:19,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:19,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413697193] [2023-08-30 13:07:19,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413697193] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:19,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:19,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:19,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926127517] [2023-08-30 13:07:19,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:19,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:20,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 268 [2023-08-30 13:07:20,231 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 13:07:20,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:20,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 268 [2023-08-30 13:07:20,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:21,360 INFO L130 PetriNetUnfolder]: 967/2864 cut-off events. [2023-08-30 13:07:21,361 INFO L131 PetriNetUnfolder]: For 58758/58758 co-relation queries the response was YES. [2023-08-30 13:07:21,377 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 13:07:21,383 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 342 selfloop transitions, 96 changer transitions 19/459 dead transitions. [2023-08-30 13:07:21,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 459 transitions, 11558 flow [2023-08-30 13:07:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 13:07:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 13:07:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2147 transitions. [2023-08-30 13:07:21,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4450663349917081 [2023-08-30 13:07:21,385 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2147 transitions. [2023-08-30 13:07:21,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2147 transitions. [2023-08-30 13:07:21,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:21,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2147 transitions. [2023-08-30 13:07:21,386 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 13:07:21,388 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 13:07:21,389 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 13:07:21,389 INFO L175 Difference]: Start difference. First operand has 295 places, 402 transitions, 9934 flow. Second operand 18 states and 2147 transitions. [2023-08-30 13:07:21,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 459 transitions, 11558 flow [2023-08-30 13:07:21,575 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 13:07:21,583 INFO L231 Difference]: Finished difference. Result has 300 places, 410 transitions, 10044 flow [2023-08-30 13:07:21,583 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 13:07:21,583 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 262 predicate places. [2023-08-30 13:07:21,583 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 410 transitions, 10044 flow [2023-08-30 13:07:21,584 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 13:07:21,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:21,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:21,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 13:07:21,584 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 13:07:21,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:21,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1024114151, now seen corresponding path program 1 times [2023-08-30 13:07:21,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:21,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568459405] [2023-08-30 13:07:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:22,225 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 13:07:22,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568459405] [2023-08-30 13:07:22,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568459405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:22,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:22,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:22,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469590106] [2023-08-30 13:07:22,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:22,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:22,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:22,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 13:07:22,798 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 13:07:22,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:22,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 13:07:22,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:23,949 INFO L130 PetriNetUnfolder]: 953/2834 cut-off events. [2023-08-30 13:07:23,949 INFO L131 PetriNetUnfolder]: For 61063/61063 co-relation queries the response was YES. [2023-08-30 13:07:23,969 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 13:07:23,976 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 269 selfloop transitions, 175 changer transitions 6/452 dead transitions. [2023-08-30 13:07:23,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 452 transitions, 11394 flow [2023-08-30 13:07:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 13:07:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 13:07:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2492 transitions. [2023-08-30 13:07:23,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427860696517413 [2023-08-30 13:07:23,979 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2492 transitions. [2023-08-30 13:07:23,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2492 transitions. [2023-08-30 13:07:23,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:23,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2492 transitions. [2023-08-30 13:07:23,981 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 13:07:23,983 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 13:07:23,983 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 13:07:23,983 INFO L175 Difference]: Start difference. First operand has 300 places, 410 transitions, 10044 flow. Second operand 21 states and 2492 transitions. [2023-08-30 13:07:23,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 452 transitions, 11394 flow [2023-08-30 13:07:24,217 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 13:07:24,225 INFO L231 Difference]: Finished difference. Result has 312 places, 412 transitions, 10285 flow [2023-08-30 13:07:24,226 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 13:07:24,226 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 274 predicate places. [2023-08-30 13:07:24,226 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 412 transitions, 10285 flow [2023-08-30 13:07:24,227 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 13:07:24,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:24,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:24,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 13:07:24,227 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 13:07:24,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:24,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1623289244, now seen corresponding path program 1 times [2023-08-30 13:07:24,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:24,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133745279] [2023-08-30 13:07:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:24,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:24,636 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 13:07:24,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:24,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133745279] [2023-08-30 13:07:24,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133745279] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:24,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:24,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:24,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821225983] [2023-08-30 13:07:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:24,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:24,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:24,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:24,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:25,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 268 [2023-08-30 13:07:25,054 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 13:07:25,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:25,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 268 [2023-08-30 13:07:25,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:26,176 INFO L130 PetriNetUnfolder]: 952/2821 cut-off events. [2023-08-30 13:07:26,176 INFO L131 PetriNetUnfolder]: For 61222/61222 co-relation queries the response was YES. [2023-08-30 13:07:26,196 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 13:07:26,203 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 329 selfloop transitions, 96 changer transitions 25/452 dead transitions. [2023-08-30 13:07:26,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 452 transitions, 11523 flow [2023-08-30 13:07:26,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:07:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:07:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1886 transitions. [2023-08-30 13:07:26,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398320895522388 [2023-08-30 13:07:26,205 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1886 transitions. [2023-08-30 13:07:26,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1886 transitions. [2023-08-30 13:07:26,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:26,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1886 transitions. [2023-08-30 13:07:26,206 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 13:07:26,208 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 13:07:26,208 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 13:07:26,208 INFO L175 Difference]: Start difference. First operand has 312 places, 412 transitions, 10285 flow. Second operand 16 states and 1886 transitions. [2023-08-30 13:07:26,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 452 transitions, 11523 flow [2023-08-30 13:07:26,455 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 13:07:26,462 INFO L231 Difference]: Finished difference. Result has 316 places, 404 transitions, 10038 flow [2023-08-30 13:07:26,463 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 13:07:26,463 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 278 predicate places. [2023-08-30 13:07:26,463 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 404 transitions, 10038 flow [2023-08-30 13:07:26,464 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 13:07:26,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:26,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:26,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 13:07:26,464 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 13:07:26,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1824696442, now seen corresponding path program 2 times [2023-08-30 13:07:26,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:26,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963521009] [2023-08-30 13:07:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:26,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:26,750 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 13:07:26,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:26,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963521009] [2023-08-30 13:07:26,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963521009] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:26,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:07:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749982883] [2023-08-30 13:07:26,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:26,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:26,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:26,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:26,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:26,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 13:07:26,956 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 13:07:26,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:26,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 13:07:26,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:27,670 INFO L130 PetriNetUnfolder]: 865/2606 cut-off events. [2023-08-30 13:07:27,670 INFO L131 PetriNetUnfolder]: For 56918/56925 co-relation queries the response was YES. [2023-08-30 13:07:27,686 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 13:07:27,691 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 137 selfloop transitions, 233 changer transitions 15/428 dead transitions. [2023-08-30 13:07:27,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 428 transitions, 10973 flow [2023-08-30 13:07:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:07:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:07:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1329 transitions. [2023-08-30 13:07:27,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49589552238805973 [2023-08-30 13:07:27,693 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1329 transitions. [2023-08-30 13:07:27,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1329 transitions. [2023-08-30 13:07:27,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:27,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1329 transitions. [2023-08-30 13:07:27,694 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 13:07:27,695 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 13:07:27,696 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 13:07:27,696 INFO L175 Difference]: Start difference. First operand has 316 places, 404 transitions, 10038 flow. Second operand 10 states and 1329 transitions. [2023-08-30 13:07:27,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 428 transitions, 10973 flow [2023-08-30 13:07:27,926 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 13:07:27,932 INFO L231 Difference]: Finished difference. Result has 292 places, 386 transitions, 9881 flow [2023-08-30 13:07:27,933 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 13:07:27,941 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 254 predicate places. [2023-08-30 13:07:27,941 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 386 transitions, 9881 flow [2023-08-30 13:07:27,941 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 13:07:27,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:27,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:27,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-30 13:07:27,941 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 13:07:27,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:27,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1584583207, now seen corresponding path program 2 times [2023-08-30 13:07:27,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:27,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828310241] [2023-08-30 13:07:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:27,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:28,570 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 13:07:28,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:28,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828310241] [2023-08-30 13:07:28,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828310241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:28,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:28,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:28,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304095825] [2023-08-30 13:07:28,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:28,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:28,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:28,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:29,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 13:07:29,117 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 13:07:29,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:29,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 13:07:29,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:30,366 INFO L130 PetriNetUnfolder]: 913/2682 cut-off events. [2023-08-30 13:07:30,367 INFO L131 PetriNetUnfolder]: For 66398/66398 co-relation queries the response was YES. [2023-08-30 13:07:30,386 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 13:07:30,393 INFO L137 encePairwiseOnDemand]: 252/268 looper letters, 312 selfloop transitions, 138 changer transitions 4/456 dead transitions. [2023-08-30 13:07:30,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 456 transitions, 11843 flow [2023-08-30 13:07:30,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-30 13:07:30,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-30 13:07:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2721 transitions. [2023-08-30 13:07:30,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44143413367942896 [2023-08-30 13:07:30,395 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2721 transitions. [2023-08-30 13:07:30,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2721 transitions. [2023-08-30 13:07:30,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:30,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2721 transitions. [2023-08-30 13:07:30,398 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 13:07:30,400 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 13:07:30,401 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 13:07:30,401 INFO L175 Difference]: Start difference. First operand has 292 places, 386 transitions, 9881 flow. Second operand 23 states and 2721 transitions. [2023-08-30 13:07:30,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 456 transitions, 11843 flow [2023-08-30 13:07:30,645 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 13:07:30,653 INFO L231 Difference]: Finished difference. Result has 294 places, 402 transitions, 10346 flow [2023-08-30 13:07:30,653 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 13:07:30,654 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 256 predicate places. [2023-08-30 13:07:30,654 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 402 transitions, 10346 flow [2023-08-30 13:07:30,654 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 13:07:30,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:30,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:30,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-30 13:07:30,654 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 13:07:30,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash 607167147, now seen corresponding path program 2 times [2023-08-30 13:07:30,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:30,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773104540] [2023-08-30 13:07:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:30,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:31,112 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 13:07:31,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:31,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773104540] [2023-08-30 13:07:31,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773104540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:31,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:31,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723180714] [2023-08-30 13:07:31,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:31,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:31,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:31,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:31,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:31,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 268 [2023-08-30 13:07:31,742 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 13:07:31,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:31,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 268 [2023-08-30 13:07:31,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:32,951 INFO L130 PetriNetUnfolder]: 905/2800 cut-off events. [2023-08-30 13:07:32,951 INFO L131 PetriNetUnfolder]: For 65920/65920 co-relation queries the response was YES. [2023-08-30 13:07:32,971 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 13:07:32,979 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 146 selfloop transitions, 268 changer transitions 76/492 dead transitions. [2023-08-30 13:07:32,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 492 transitions, 13047 flow [2023-08-30 13:07:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:07:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:07:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1932 transitions. [2023-08-30 13:07:32,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4505597014925373 [2023-08-30 13:07:32,981 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1932 transitions. [2023-08-30 13:07:32,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1932 transitions. [2023-08-30 13:07:32,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:32,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1932 transitions. [2023-08-30 13:07:32,982 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 13:07:32,984 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 13:07:32,985 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 13:07:32,985 INFO L175 Difference]: Start difference. First operand has 294 places, 402 transitions, 10346 flow. Second operand 16 states and 1932 transitions. [2023-08-30 13:07:32,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 492 transitions, 13047 flow [2023-08-30 13:07:33,228 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 13:07:33,236 INFO L231 Difference]: Finished difference. Result has 301 places, 396 transitions, 10774 flow [2023-08-30 13:07:33,237 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 13:07:33,237 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 263 predicate places. [2023-08-30 13:07:33,237 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 396 transitions, 10774 flow [2023-08-30 13:07:33,237 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 13:07:33,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:33,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:33,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-30 13:07:33,238 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 13:07:33,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:33,238 INFO L85 PathProgramCache]: Analyzing trace with hash 420040349, now seen corresponding path program 3 times [2023-08-30 13:07:33,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:33,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141727277] [2023-08-30 13:07:33,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:33,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:33,923 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 13:07:33,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:33,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141727277] [2023-08-30 13:07:33,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141727277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:33,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:33,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806918347] [2023-08-30 13:07:33,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:33,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:33,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:33,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:34,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 13:07:34,430 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 13:07:34,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:34,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 13:07:34,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:35,476 INFO L130 PetriNetUnfolder]: 734/2390 cut-off events. [2023-08-30 13:07:35,477 INFO L131 PetriNetUnfolder]: For 68656/68656 co-relation queries the response was YES. [2023-08-30 13:07:35,492 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 13:07:35,499 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 322 selfloop transitions, 89 changer transitions 18/431 dead transitions. [2023-08-30 13:07:35,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 431 transitions, 12070 flow [2023-08-30 13:07:35,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:07:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:07:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2011 transitions. [2023-08-30 13:07:35,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4413959613696225 [2023-08-30 13:07:35,501 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2011 transitions. [2023-08-30 13:07:35,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2011 transitions. [2023-08-30 13:07:35,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:35,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2011 transitions. [2023-08-30 13:07:35,503 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 13:07:35,505 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 13:07:35,505 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 13:07:35,505 INFO L175 Difference]: Start difference. First operand has 301 places, 396 transitions, 10774 flow. Second operand 17 states and 2011 transitions. [2023-08-30 13:07:35,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 431 transitions, 12070 flow [2023-08-30 13:07:35,744 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 13:07:35,752 INFO L231 Difference]: Finished difference. Result has 293 places, 387 transitions, 10434 flow [2023-08-30 13:07:35,752 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 13:07:35,753 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 255 predicate places. [2023-08-30 13:07:35,753 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 387 transitions, 10434 flow [2023-08-30 13:07:35,753 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 13:07:35,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:35,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:35,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-30 13:07:35,754 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 13:07:35,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 196979667, now seen corresponding path program 3 times [2023-08-30 13:07:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:35,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426845049] [2023-08-30 13:07:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:35,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:36,214 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 13:07:36,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:36,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426845049] [2023-08-30 13:07:36,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426845049] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:36,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:36,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:36,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021771708] [2023-08-30 13:07:36,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:36,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:36,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:36,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 13:07:36,689 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 13:07:36,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:36,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 13:07:36,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:37,752 INFO L130 PetriNetUnfolder]: 590/1909 cut-off events. [2023-08-30 13:07:37,752 INFO L131 PetriNetUnfolder]: For 54694/54694 co-relation queries the response was YES. [2023-08-30 13:07:37,762 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 13:07:37,766 INFO L137 encePairwiseOnDemand]: 253/268 looper letters, 150 selfloop transitions, 270 changer transitions 0/422 dead transitions. [2023-08-30 13:07:37,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 422 transitions, 11526 flow [2023-08-30 13:07:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 13:07:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 13:07:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2139 transitions. [2023-08-30 13:07:37,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44340796019900497 [2023-08-30 13:07:37,768 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2139 transitions. [2023-08-30 13:07:37,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2139 transitions. [2023-08-30 13:07:37,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:37,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2139 transitions. [2023-08-30 13:07:37,769 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 13:07:37,771 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 13:07:37,771 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 13:07:37,771 INFO L175 Difference]: Start difference. First operand has 293 places, 387 transitions, 10434 flow. Second operand 18 states and 2139 transitions. [2023-08-30 13:07:37,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 422 transitions, 11526 flow [2023-08-30 13:07:37,921 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 13:07:37,929 INFO L231 Difference]: Finished difference. Result has 281 places, 393 transitions, 10387 flow [2023-08-30 13:07:37,929 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 13:07:37,929 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 243 predicate places. [2023-08-30 13:07:37,929 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 393 transitions, 10387 flow [2023-08-30 13:07:37,929 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 13:07:37,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:37,930 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 13:07:37,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-30 13:07:37,930 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 13:07:37,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash 867886973, now seen corresponding path program 1 times [2023-08-30 13:07:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:37,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666092411] [2023-08-30 13:07:37,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:38,278 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 13:07:38,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:38,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666092411] [2023-08-30 13:07:38,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666092411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:38,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:38,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:07:38,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583253556] [2023-08-30 13:07:38,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:38,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:38,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:38,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:38,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:38,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 13:07:38,452 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 13:07:38,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:38,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 13:07:38,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:38,948 INFO L130 PetriNetUnfolder]: 596/2023 cut-off events. [2023-08-30 13:07:38,948 INFO L131 PetriNetUnfolder]: For 54355/54382 co-relation queries the response was YES. [2023-08-30 13:07:38,959 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 13:07:38,965 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 351 selfloop transitions, 54 changer transitions 18/460 dead transitions. [2023-08-30 13:07:38,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 460 transitions, 12604 flow [2023-08-30 13:07:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:07:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:07:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 870 transitions. [2023-08-30 13:07:38,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46375266524520253 [2023-08-30 13:07:38,966 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 870 transitions. [2023-08-30 13:07:38,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 870 transitions. [2023-08-30 13:07:38,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:38,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 870 transitions. [2023-08-30 13:07:38,967 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 13:07:38,968 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 13:07:38,968 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 13:07:38,968 INFO L175 Difference]: Start difference. First operand has 281 places, 393 transitions, 10387 flow. Second operand 7 states and 870 transitions. [2023-08-30 13:07:38,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 460 transitions, 12604 flow [2023-08-30 13:07:39,141 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 13:07:39,148 INFO L231 Difference]: Finished difference. Result has 277 places, 398 transitions, 9962 flow [2023-08-30 13:07:39,148 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 13:07:39,148 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 239 predicate places. [2023-08-30 13:07:39,148 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 398 transitions, 9962 flow [2023-08-30 13:07:39,149 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 13:07:39,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:39,149 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 13:07:39,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-30 13:07:39,149 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 13:07:39,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:39,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1247367455, now seen corresponding path program 2 times [2023-08-30 13:07:39,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:39,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532450874] [2023-08-30 13:07:39,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:39,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:39,836 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 13:07:39,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:39,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532450874] [2023-08-30 13:07:39,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532450874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:39,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:39,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:39,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227411098] [2023-08-30 13:07:39,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:39,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:39,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:40,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 13:07:40,467 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 13:07:40,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:40,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 13:07:40,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:41,655 INFO L130 PetriNetUnfolder]: 579/2067 cut-off events. [2023-08-30 13:07:41,656 INFO L131 PetriNetUnfolder]: For 47828/47828 co-relation queries the response was YES. [2023-08-30 13:07:41,666 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 13:07:41,671 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 340 selfloop transitions, 139 changer transitions 0/481 dead transitions. [2023-08-30 13:07:41,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 481 transitions, 12172 flow [2023-08-30 13:07:41,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 13:07:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 13:07:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2209 transitions. [2023-08-30 13:07:41,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4338177533385703 [2023-08-30 13:07:41,673 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2209 transitions. [2023-08-30 13:07:41,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2209 transitions. [2023-08-30 13:07:41,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:41,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2209 transitions. [2023-08-30 13:07:41,675 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 13:07:41,677 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 13:07:41,677 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 13:07:41,677 INFO L175 Difference]: Start difference. First operand has 277 places, 398 transitions, 9962 flow. Second operand 19 states and 2209 transitions. [2023-08-30 13:07:41,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 481 transitions, 12172 flow [2023-08-30 13:07:41,841 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 13:07:41,849 INFO L231 Difference]: Finished difference. Result has 296 places, 437 transitions, 11098 flow [2023-08-30 13:07:41,849 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 13:07:41,849 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 258 predicate places. [2023-08-30 13:07:41,849 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 437 transitions, 11098 flow [2023-08-30 13:07:41,850 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 13:07:41,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:41,850 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 13:07:41,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-30 13:07:41,850 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 13:07:41,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:41,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2041406568, now seen corresponding path program 1 times [2023-08-30 13:07:41,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:41,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740625034] [2023-08-30 13:07:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:42,091 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 13:07:42,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:42,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740625034] [2023-08-30 13:07:42,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740625034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:42,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:42,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:07:42,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504150063] [2023-08-30 13:07:42,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:42,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:42,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:42,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:42,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:42,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 268 [2023-08-30 13:07:42,254 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 13:07:42,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:42,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 268 [2023-08-30 13:07:42,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:42,772 INFO L130 PetriNetUnfolder]: 516/1926 cut-off events. [2023-08-30 13:07:42,772 INFO L131 PetriNetUnfolder]: For 52037/52046 co-relation queries the response was YES. [2023-08-30 13:07:42,782 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 13:07:42,787 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 354 selfloop transitions, 53 changer transitions 9/452 dead transitions. [2023-08-30 13:07:42,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 452 transitions, 12114 flow [2023-08-30 13:07:42,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:07:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:07:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 867 transitions. [2023-08-30 13:07:42,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4621535181236674 [2023-08-30 13:07:42,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 867 transitions. [2023-08-30 13:07:42,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 867 transitions. [2023-08-30 13:07:42,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:42,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 867 transitions. [2023-08-30 13:07:42,790 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 13:07:42,791 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 13:07:42,791 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 13:07:42,791 INFO L175 Difference]: Start difference. First operand has 296 places, 437 transitions, 11098 flow. Second operand 7 states and 867 transitions. [2023-08-30 13:07:42,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 452 transitions, 12114 flow [2023-08-30 13:07:42,983 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 13:07:42,991 INFO L231 Difference]: Finished difference. Result has 298 places, 428 transitions, 10930 flow [2023-08-30 13:07:42,991 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 13:07:42,991 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 260 predicate places. [2023-08-30 13:07:42,991 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 428 transitions, 10930 flow [2023-08-30 13:07:42,992 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 13:07:42,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:42,992 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 13:07:42,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-30 13:07:42,992 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 13:07:42,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash 458713277, now seen corresponding path program 3 times [2023-08-30 13:07:42,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:42,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885820550] [2023-08-30 13:07:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:42,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:43,728 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 13:07:43,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:43,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885820550] [2023-08-30 13:07:43,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885820550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:43,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:43,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278532836] [2023-08-30 13:07:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:43,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:44,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 13:07:44,402 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 13:07:44,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:44,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 13:07:44,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:45,185 INFO L130 PetriNetUnfolder]: 521/1932 cut-off events. [2023-08-30 13:07:45,185 INFO L131 PetriNetUnfolder]: For 51111/51111 co-relation queries the response was YES. [2023-08-30 13:07:45,195 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 13:07:45,200 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 350 selfloop transitions, 115 changer transitions 0/467 dead transitions. [2023-08-30 13:07:45,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 467 transitions, 12544 flow [2023-08-30 13:07:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1495 transitions. [2023-08-30 13:07:45,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291044776119403 [2023-08-30 13:07:45,202 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1495 transitions. [2023-08-30 13:07:45,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1495 transitions. [2023-08-30 13:07:45,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:45,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1495 transitions. [2023-08-30 13:07:45,203 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 13:07:45,205 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 13:07:45,205 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 13:07:45,205 INFO L175 Difference]: Start difference. First operand has 298 places, 428 transitions, 10930 flow. Second operand 13 states and 1495 transitions. [2023-08-30 13:07:45,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 467 transitions, 12544 flow [2023-08-30 13:07:45,399 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 13:07:45,407 INFO L231 Difference]: Finished difference. Result has 307 places, 438 transitions, 11297 flow [2023-08-30 13:07:45,407 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 13:07:45,407 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 269 predicate places. [2023-08-30 13:07:45,407 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 438 transitions, 11297 flow [2023-08-30 13:07:45,408 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 13:07:45,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:45,408 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 13:07:45,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-30 13:07:45,408 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 13:07:45,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:45,408 INFO L85 PathProgramCache]: Analyzing trace with hash -167914148, now seen corresponding path program 2 times [2023-08-30 13:07:45,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:45,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814518067] [2023-08-30 13:07:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:45,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:45,923 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 13:07:45,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:45,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814518067] [2023-08-30 13:07:45,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814518067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:45,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:45,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:07:45,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790264727] [2023-08-30 13:07:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:45,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:07:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:45,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:07:45,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:07:46,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 268 [2023-08-30 13:07:46,264 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 13:07:46,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:46,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 268 [2023-08-30 13:07:46,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:46,826 INFO L130 PetriNetUnfolder]: 509/1976 cut-off events. [2023-08-30 13:07:46,827 INFO L131 PetriNetUnfolder]: For 52109/52109 co-relation queries the response was YES. [2023-08-30 13:07:46,837 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 13:07:46,842 INFO L137 encePairwiseOnDemand]: 256/268 looper letters, 222 selfloop transitions, 121 changer transitions 111/456 dead transitions. [2023-08-30 13:07:46,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 456 transitions, 12330 flow [2023-08-30 13:07:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:07:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:07:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 954 transitions. [2023-08-30 13:07:46,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4449626865671642 [2023-08-30 13:07:46,843 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 954 transitions. [2023-08-30 13:07:46,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 954 transitions. [2023-08-30 13:07:46,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:46,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 954 transitions. [2023-08-30 13:07:46,844 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 13:07:46,845 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 13:07:46,845 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 13:07:46,845 INFO L175 Difference]: Start difference. First operand has 307 places, 438 transitions, 11297 flow. Second operand 8 states and 954 transitions. [2023-08-30 13:07:46,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 456 transitions, 12330 flow [2023-08-30 13:07:47,034 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 13:07:47,041 INFO L231 Difference]: Finished difference. Result has 310 places, 327 transitions, 8511 flow [2023-08-30 13:07:47,041 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 13:07:47,041 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 272 predicate places. [2023-08-30 13:07:47,041 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 327 transitions, 8511 flow [2023-08-30 13:07:47,042 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 13:07:47,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:47,042 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 13:07:47,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-30 13:07:47,042 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 13:07:47,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash 959333770, now seen corresponding path program 3 times [2023-08-30 13:07:47,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:47,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931735373] [2023-08-30 13:07:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:47,315 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 13:07:47,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931735373] [2023-08-30 13:07:47,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931735373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:47,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:47,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:07:47,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380183184] [2023-08-30 13:07:47,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:47,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:47,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:47,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 268 [2023-08-30 13:07:47,510 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 13:07:47,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:47,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 268 [2023-08-30 13:07:47,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:47,918 INFO L130 PetriNetUnfolder]: 276/1376 cut-off events. [2023-08-30 13:07:47,918 INFO L131 PetriNetUnfolder]: For 42913/42913 co-relation queries the response was YES. [2023-08-30 13:07:47,925 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 13:07:47,929 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 239 selfloop transitions, 123 changer transitions 0/393 dead transitions. [2023-08-30 13:07:47,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 393 transitions, 10847 flow [2023-08-30 13:07:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:07:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:07:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 897 transitions. [2023-08-30 13:07:47,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47814498933901917 [2023-08-30 13:07:47,930 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 897 transitions. [2023-08-30 13:07:47,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 897 transitions. [2023-08-30 13:07:47,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:47,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 897 transitions. [2023-08-30 13:07:47,931 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 13:07:47,932 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 13:07:47,932 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 13:07:47,932 INFO L175 Difference]: Start difference. First operand has 310 places, 327 transitions, 8511 flow. Second operand 7 states and 897 transitions. [2023-08-30 13:07:47,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 393 transitions, 10847 flow [2023-08-30 13:07:48,062 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 13:07:48,068 INFO L231 Difference]: Finished difference. Result has 299 places, 362 transitions, 9403 flow [2023-08-30 13:07:48,068 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 13:07:48,068 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 261 predicate places. [2023-08-30 13:07:48,068 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 362 transitions, 9403 flow [2023-08-30 13:07:48,069 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 13:07:48,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:48,069 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 13:07:48,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-08-30 13:07:48,069 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 13:07:48,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:48,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1889595437, now seen corresponding path program 4 times [2023-08-30 13:07:48,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:48,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800932247] [2023-08-30 13:07:48,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:48,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:48,896 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 13:07:48,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800932247] [2023-08-30 13:07:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800932247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:48,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:48,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 13:07:48,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100638708] [2023-08-30 13:07:48,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:48,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 13:07:48,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:48,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 13:07:48,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-08-30 13:07:49,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 13:07:49,596 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 13:07:49,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:49,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 13:07:49,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:50,219 INFO L130 PetriNetUnfolder]: 278/1389 cut-off events. [2023-08-30 13:07:50,220 INFO L131 PetriNetUnfolder]: For 40748/40748 co-relation queries the response was YES. [2023-08-30 13:07:50,228 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 13:07:50,232 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 327 selfloop transitions, 67 changer transitions 0/396 dead transitions. [2023-08-30 13:07:50,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 396 transitions, 10693 flow [2023-08-30 13:07:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:50,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:50,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1611 transitions. [2023-08-30 13:07:50,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42937100213219614 [2023-08-30 13:07:50,234 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1611 transitions. [2023-08-30 13:07:50,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1611 transitions. [2023-08-30 13:07:50,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:50,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1611 transitions. [2023-08-30 13:07:50,235 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 13:07:50,237 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 13:07:50,237 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 13:07:50,237 INFO L175 Difference]: Start difference. First operand has 299 places, 362 transitions, 9403 flow. Second operand 14 states and 1611 transitions. [2023-08-30 13:07:50,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 396 transitions, 10693 flow [2023-08-30 13:07:50,382 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 13:07:50,389 INFO L231 Difference]: Finished difference. Result has 307 places, 365 transitions, 9436 flow [2023-08-30 13:07:50,389 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 13:07:50,389 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 269 predicate places. [2023-08-30 13:07:50,390 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 365 transitions, 9436 flow [2023-08-30 13:07:50,390 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 13:07:50,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:50,390 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 13:07:50,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-08-30 13:07:50,390 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 13:07:50,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:50,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1374172654, now seen corresponding path program 4 times [2023-08-30 13:07:50,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:50,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023568110] [2023-08-30 13:07:50,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:50,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:51,007 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 13:07:51,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:51,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023568110] [2023-08-30 13:07:51,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023568110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:51,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:51,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754850529] [2023-08-30 13:07:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:51,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:51,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:51,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:51,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:51,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 268 [2023-08-30 13:07:51,679 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 13:07:51,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:51,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 268 [2023-08-30 13:07:51,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:52,452 INFO L130 PetriNetUnfolder]: 275/1372 cut-off events. [2023-08-30 13:07:52,453 INFO L131 PetriNetUnfolder]: For 39685/39685 co-relation queries the response was YES. [2023-08-30 13:07:52,460 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 13:07:52,463 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 243 selfloop transitions, 141 changer transitions 0/386 dead transitions. [2023-08-30 13:07:52,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 386 transitions, 10403 flow [2023-08-30 13:07:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:07:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:07:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1699 transitions. [2023-08-30 13:07:52,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42263681592039803 [2023-08-30 13:07:52,465 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1699 transitions. [2023-08-30 13:07:52,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1699 transitions. [2023-08-30 13:07:52,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:52,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1699 transitions. [2023-08-30 13:07:52,466 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 13:07:52,468 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 13:07:52,468 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 13:07:52,468 INFO L175 Difference]: Start difference. First operand has 307 places, 365 transitions, 9436 flow. Second operand 15 states and 1699 transitions. [2023-08-30 13:07:52,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 386 transitions, 10403 flow [2023-08-30 13:07:52,582 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 13:07:52,589 INFO L231 Difference]: Finished difference. Result has 317 places, 368 transitions, 9814 flow [2023-08-30 13:07:52,589 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 13:07:52,589 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 279 predicate places. [2023-08-30 13:07:52,590 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 368 transitions, 9814 flow [2023-08-30 13:07:52,590 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 13:07:52,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:52,590 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 13:07:52,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-08-30 13:07:52,590 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 13:07:52,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:52,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1534323849, now seen corresponding path program 5 times [2023-08-30 13:07:52,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:52,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236447027] [2023-08-30 13:07:52,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:52,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:53,198 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 13:07:53,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:53,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236447027] [2023-08-30 13:07:53,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236447027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:53,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:53,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:53,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781983494] [2023-08-30 13:07:53,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:53,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:53,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:53,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:53,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 13:07:53,759 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 13:07:53,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:53,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 13:07:53,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:54,644 INFO L130 PetriNetUnfolder]: 265/1390 cut-off events. [2023-08-30 13:07:54,645 INFO L131 PetriNetUnfolder]: For 45518/45518 co-relation queries the response was YES. [2023-08-30 13:07:54,650 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 13:07:54,653 INFO L137 encePairwiseOnDemand]: 254/268 looper letters, 207 selfloop transitions, 153 changer transitions 29/391 dead transitions. [2023-08-30 13:07:54,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 391 transitions, 10880 flow [2023-08-30 13:07:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:07:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:07:54,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1827 transitions. [2023-08-30 13:07:54,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42607276119402987 [2023-08-30 13:07:54,655 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1827 transitions. [2023-08-30 13:07:54,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1827 transitions. [2023-08-30 13:07:54,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:54,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1827 transitions. [2023-08-30 13:07:54,657 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 13:07:54,659 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 13:07:54,659 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 13:07:54,659 INFO L175 Difference]: Start difference. First operand has 317 places, 368 transitions, 9814 flow. Second operand 16 states and 1827 transitions. [2023-08-30 13:07:54,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 391 transitions, 10880 flow [2023-08-30 13:07:54,783 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 13:07:54,789 INFO L231 Difference]: Finished difference. Result has 323 places, 351 transitions, 9408 flow [2023-08-30 13:07:54,790 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 13:07:54,790 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 285 predicate places. [2023-08-30 13:07:54,790 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 351 transitions, 9408 flow [2023-08-30 13:07:54,790 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 13:07:54,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:54,791 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 13:07:54,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-08-30 13:07:54,791 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 13:07:54,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash -232663312, now seen corresponding path program 5 times [2023-08-30 13:07:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:54,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901611963] [2023-08-30 13:07:54,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:54,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:55,172 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 13:07:55,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:55,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901611963] [2023-08-30 13:07:55,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901611963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:55,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:55,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:07:55,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906779736] [2023-08-30 13:07:55,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:55,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:07:55,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:55,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:07:55,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:07:55,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:07:55,665 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 13:07:55,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:55,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:07:55,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:56,156 INFO L130 PetriNetUnfolder]: 256/1316 cut-off events. [2023-08-30 13:07:56,157 INFO L131 PetriNetUnfolder]: For 42046/42046 co-relation queries the response was YES. [2023-08-30 13:07:56,163 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 13:07:56,166 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 276 selfloop transitions, 60 changer transitions 0/366 dead transitions. [2023-08-30 13:07:56,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 366 transitions, 10250 flow [2023-08-30 13:07:56,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:07:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:07:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1235 transitions. [2023-08-30 13:07:56,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4608208955223881 [2023-08-30 13:07:56,167 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1235 transitions. [2023-08-30 13:07:56,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1235 transitions. [2023-08-30 13:07:56,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:56,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1235 transitions. [2023-08-30 13:07:56,169 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 13:07:56,170 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 13:07:56,170 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 13:07:56,170 INFO L175 Difference]: Start difference. First operand has 323 places, 351 transitions, 9408 flow. Second operand 10 states and 1235 transitions. [2023-08-30 13:07:56,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 366 transitions, 10250 flow [2023-08-30 13:07:56,291 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 13:07:56,297 INFO L231 Difference]: Finished difference. Result has 300 places, 355 transitions, 9247 flow [2023-08-30 13:07:56,297 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 13:07:56,298 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 262 predicate places. [2023-08-30 13:07:56,298 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 355 transitions, 9247 flow [2023-08-30 13:07:56,298 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 13:07:56,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:56,298 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 13:07:56,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-08-30 13:07:56,299 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 13:07:56,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:56,300 INFO L85 PathProgramCache]: Analyzing trace with hash -315780201, now seen corresponding path program 6 times [2023-08-30 13:07:56,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:56,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455050248] [2023-08-30 13:07:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:56,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:57,085 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 13:07:57,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:57,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455050248] [2023-08-30 13:07:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455050248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630383124] [2023-08-30 13:07:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:57,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:57,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:57,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:57,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 13:07:57,789 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 13:07:57,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:57,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 13:07:57,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:58,695 INFO L130 PetriNetUnfolder]: 256/1310 cut-off events. [2023-08-30 13:07:58,695 INFO L131 PetriNetUnfolder]: For 38819/38819 co-relation queries the response was YES. [2023-08-30 13:07:58,701 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 13:07:58,704 INFO L137 encePairwiseOnDemand]: 255/268 looper letters, 212 selfloop transitions, 130 changer transitions 27/371 dead transitions. [2023-08-30 13:07:58,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 371 transitions, 10131 flow [2023-08-30 13:07:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:07:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:07:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1725 transitions. [2023-08-30 13:07:58,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291044776119403 [2023-08-30 13:07:58,723 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1725 transitions. [2023-08-30 13:07:58,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1725 transitions. [2023-08-30 13:07:58,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:58,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1725 transitions. [2023-08-30 13:07:58,724 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 13:07:58,726 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 13:07:58,726 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 13:07:58,726 INFO L175 Difference]: Start difference. First operand has 300 places, 355 transitions, 9247 flow. Second operand 15 states and 1725 transitions. [2023-08-30 13:07:58,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 371 transitions, 10131 flow [2023-08-30 13:07:58,835 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 13:07:58,841 INFO L231 Difference]: Finished difference. Result has 310 places, 337 transitions, 9039 flow [2023-08-30 13:07:58,842 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 13:07:58,842 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 272 predicate places. [2023-08-30 13:07:58,842 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 337 transitions, 9039 flow [2023-08-30 13:07:58,842 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 13:07:58,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:58,842 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 13:07:58,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-08-30 13:07:58,843 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 13:07:58,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:58,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1961301268, now seen corresponding path program 6 times [2023-08-30 13:07:58,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752859746] [2023-08-30 13:07:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:59,396 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 13:07:59,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752859746] [2023-08-30 13:07:59,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752859746] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:59,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:59,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:59,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661251871] [2023-08-30 13:07:59,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:59,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:59,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:08:00,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 268 [2023-08-30 13:08:00,087 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 13:08:00,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:00,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 268 [2023-08-30 13:08:00,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:00,670 INFO L130 PetriNetUnfolder]: 247/1257 cut-off events. [2023-08-30 13:08:00,671 INFO L131 PetriNetUnfolder]: For 39738/39738 co-relation queries the response was YES. [2023-08-30 13:08:00,676 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 13:08:00,679 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 325 selfloop transitions, 35 changer transitions 1/363 dead transitions. [2023-08-30 13:08:00,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 363 transitions, 10124 flow [2023-08-30 13:08:00,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:08:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:08:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1475 transitions. [2023-08-30 13:08:00,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233639494833525 [2023-08-30 13:08:00,680 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1475 transitions. [2023-08-30 13:08:00,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1475 transitions. [2023-08-30 13:08:00,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:00,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1475 transitions. [2023-08-30 13:08:00,682 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 13:08:00,683 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 13:08:00,683 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 13:08:00,684 INFO L175 Difference]: Start difference. First operand has 310 places, 337 transitions, 9039 flow. Second operand 13 states and 1475 transitions. [2023-08-30 13:08:00,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 363 transitions, 10124 flow [2023-08-30 13:08:00,779 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 13:08:00,785 INFO L231 Difference]: Finished difference. Result has 291 places, 339 transitions, 8556 flow [2023-08-30 13:08:00,785 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 13:08:00,785 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 253 predicate places. [2023-08-30 13:08:00,786 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 339 transitions, 8556 flow [2023-08-30 13:08:00,786 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 13:08:00,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:00,786 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 13:08:00,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-08-30 13:08:00,786 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 13:08:00,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:00,787 INFO L85 PathProgramCache]: Analyzing trace with hash 989891784, now seen corresponding path program 7 times [2023-08-30 13:08:00,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:00,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925729820] [2023-08-30 13:08:00,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:00,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:01,120 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 13:08:01,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:01,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925729820] [2023-08-30 13:08:01,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925729820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:01,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:01,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:08:01,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617831421] [2023-08-30 13:08:01,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:01,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:08:01,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:01,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:08:01,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:08:01,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 13:08:01,320 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 13:08:01,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:01,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 13:08:01,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:01,698 INFO L130 PetriNetUnfolder]: 247/1206 cut-off events. [2023-08-30 13:08:01,698 INFO L131 PetriNetUnfolder]: For 32541/32541 co-relation queries the response was YES. [2023-08-30 13:08:01,703 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 13:08:01,705 INFO L137 encePairwiseOnDemand]: 260/268 looper letters, 168 selfloop transitions, 49 changer transitions 106/325 dead transitions. [2023-08-30 13:08:01,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 325 transitions, 8685 flow [2023-08-30 13:08:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:08:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:08:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 843 transitions. [2023-08-30 13:08:01,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4493603411513859 [2023-08-30 13:08:01,707 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 843 transitions. [2023-08-30 13:08:01,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 843 transitions. [2023-08-30 13:08:01,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:01,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 843 transitions. [2023-08-30 13:08:01,708 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 13:08:01,709 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 13:08:01,709 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 13:08:01,709 INFO L175 Difference]: Start difference. First operand has 291 places, 339 transitions, 8556 flow. Second operand 7 states and 843 transitions. [2023-08-30 13:08:01,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 325 transitions, 8685 flow [2023-08-30 13:08:01,794 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 13:08:01,799 INFO L231 Difference]: Finished difference. Result has 287 places, 216 transitions, 5216 flow [2023-08-30 13:08:01,799 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 13:08:01,799 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 249 predicate places. [2023-08-30 13:08:01,799 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 216 transitions, 5216 flow [2023-08-30 13:08:01,800 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 13:08:01,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:01,800 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 13:08:01,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-08-30 13:08:01,800 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 13:08:01,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:01,800 INFO L85 PathProgramCache]: Analyzing trace with hash -514567767, now seen corresponding path program 7 times [2023-08-30 13:08:01,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:01,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115073833] [2023-08-30 13:08:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:01,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:02,601 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 13:08:02,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:02,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115073833] [2023-08-30 13:08:02,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115073833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:02,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:02,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:08:02,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104494327] [2023-08-30 13:08:02,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:02,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:08:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:08:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:08:03,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 268 [2023-08-30 13:08:03,513 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 13:08:03,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:03,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 268 [2023-08-30 13:08:03,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:03,991 INFO L130 PetriNetUnfolder]: 174/800 cut-off events. [2023-08-30 13:08:03,991 INFO L131 PetriNetUnfolder]: For 21143/21143 co-relation queries the response was YES. [2023-08-30 13:08:03,994 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 13:08:03,996 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 187 selfloop transitions, 42 changer transitions 2/233 dead transitions. [2023-08-30 13:08:03,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 233 transitions, 5841 flow [2023-08-30 13:08:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:08:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:08:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1375 transitions. [2023-08-30 13:08:03,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275497512437811 [2023-08-30 13:08:03,998 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1375 transitions. [2023-08-30 13:08:03,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1375 transitions. [2023-08-30 13:08:03,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:03,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1375 transitions. [2023-08-30 13:08:03,999 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 13:08:04,000 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 13:08:04,001 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 13:08:04,001 INFO L175 Difference]: Start difference. First operand has 287 places, 216 transitions, 5216 flow. Second operand 12 states and 1375 transitions. [2023-08-30 13:08:04,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 233 transitions, 5841 flow [2023-08-30 13:08:04,052 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 13:08:04,055 INFO L231 Difference]: Finished difference. Result has 272 places, 217 transitions, 4770 flow [2023-08-30 13:08:04,055 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 13:08:04,056 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 234 predicate places. [2023-08-30 13:08:04,056 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 217 transitions, 4770 flow [2023-08-30 13:08:04,056 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 13:08:04,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:04,056 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 13:08:04,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-08-30 13:08:04,057 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 13:08:04,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:04,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1961301269, now seen corresponding path program 8 times [2023-08-30 13:08:04,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:04,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297499568] [2023-08-30 13:08:04,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:04,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:04,651 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 13:08:04,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:04,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297499568] [2023-08-30 13:08:04,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297499568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:04,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:04,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:08:04,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306985324] [2023-08-30 13:08:04,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:04,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:08:04,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:04,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:08:04,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:08:05,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 13:08:05,222 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 13:08:05,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:05,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 13:08:05,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:05,568 INFO L130 PetriNetUnfolder]: 174/795 cut-off events. [2023-08-30 13:08:05,568 INFO L131 PetriNetUnfolder]: For 16891/16891 co-relation queries the response was YES. [2023-08-30 13:08:05,572 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 13:08:05,574 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 181 selfloop transitions, 32 changer transitions 14/229 dead transitions. [2023-08-30 13:08:05,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 229 transitions, 5305 flow [2023-08-30 13:08:05,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:08:05,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:08:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1495 transitions. [2023-08-30 13:08:05,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291044776119403 [2023-08-30 13:08:05,575 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1495 transitions. [2023-08-30 13:08:05,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1495 transitions. [2023-08-30 13:08:05,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:05,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1495 transitions. [2023-08-30 13:08:05,577 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 13:08:05,578 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 13:08:05,578 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 13:08:05,578 INFO L175 Difference]: Start difference. First operand has 272 places, 217 transitions, 4770 flow. Second operand 13 states and 1495 transitions. [2023-08-30 13:08:05,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 229 transitions, 5305 flow [2023-08-30 13:08:05,622 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 13:08:05,625 INFO L231 Difference]: Finished difference. Result has 273 places, 209 transitions, 4505 flow [2023-08-30 13:08:05,626 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 13:08:05,626 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 235 predicate places. [2023-08-30 13:08:05,628 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 209 transitions, 4505 flow [2023-08-30 13:08:05,628 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 13:08:05,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:05,628 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 13:08:05,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-08-30 13:08:05,629 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 13:08:05,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:05,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1889595438, now seen corresponding path program 8 times [2023-08-30 13:08:05,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:05,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894236659] [2023-08-30 13:08:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:05,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:05,988 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 13:08:05,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:05,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894236659] [2023-08-30 13:08:05,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894236659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:05,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:05,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:08:05,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038427406] [2023-08-30 13:08:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:05,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:08:05,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:08:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:08:06,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 268 [2023-08-30 13:08:06,164 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 13:08:06,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:06,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 268 [2023-08-30 13:08:06,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:06,370 INFO L130 PetriNetUnfolder]: 168/748 cut-off events. [2023-08-30 13:08:06,371 INFO L131 PetriNetUnfolder]: For 15192/15192 co-relation queries the response was YES. [2023-08-30 13:08:06,374 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 13:08:06,375 INFO L137 encePairwiseOnDemand]: 261/268 looper letters, 122 selfloop transitions, 17 changer transitions 63/204 dead transitions. [2023-08-30 13:08:06,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 204 transitions, 4675 flow [2023-08-30 13:08:06,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:08:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:08:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 835 transitions. [2023-08-30 13:08:06,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4450959488272921 [2023-08-30 13:08:06,377 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 835 transitions. [2023-08-30 13:08:06,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 835 transitions. [2023-08-30 13:08:06,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:06,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 835 transitions. [2023-08-30 13:08:06,378 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 13:08:06,379 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 13:08:06,379 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 13:08:06,379 INFO L175 Difference]: Start difference. First operand has 273 places, 209 transitions, 4505 flow. Second operand 7 states and 835 transitions. [2023-08-30 13:08:06,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 204 transitions, 4675 flow [2023-08-30 13:08:06,417 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 13:08:06,420 INFO L231 Difference]: Finished difference. Result has 248 places, 140 transitions, 2884 flow [2023-08-30 13:08:06,420 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 13:08:06,421 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 210 predicate places. [2023-08-30 13:08:06,421 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 140 transitions, 2884 flow [2023-08-30 13:08:06,421 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 13:08:06,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:06,421 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 13:08:06,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-08-30 13:08:06,422 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 13:08:06,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:06,422 INFO L85 PathProgramCache]: Analyzing trace with hash -514567768, now seen corresponding path program 9 times [2023-08-30 13:08:06,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:06,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564534105] [2023-08-30 13:08:06,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:06,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:06,855 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 13:08:06,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564534105] [2023-08-30 13:08:06,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564534105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:06,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:06,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:08:06,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970270172] [2023-08-30 13:08:06,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:06,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:08:06,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:06,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:08:06,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:08:07,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:08:07,373 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 13:08:07,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:07,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:08:07,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:07,643 INFO L130 PetriNetUnfolder]: 115/523 cut-off events. [2023-08-30 13:08:07,643 INFO L131 PetriNetUnfolder]: For 11227/11227 co-relation queries the response was YES. [2023-08-30 13:08:07,645 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 13:08:07,646 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 93 selfloop transitions, 8 changer transitions 34/147 dead transitions. [2023-08-30 13:08:07,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 147 transitions, 3176 flow [2023-08-30 13:08:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:08:07,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:08:07,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1228 transitions. [2023-08-30 13:08:07,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582089552238806 [2023-08-30 13:08:07,647 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1228 transitions. [2023-08-30 13:08:07,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1228 transitions. [2023-08-30 13:08:07,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:07,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1228 transitions. [2023-08-30 13:08:07,649 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 13:08:07,650 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 13:08:07,650 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 13:08:07,650 INFO L175 Difference]: Start difference. First operand has 248 places, 140 transitions, 2884 flow. Second operand 10 states and 1228 transitions. [2023-08-30 13:08:07,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 147 transitions, 3176 flow [2023-08-30 13:08:07,668 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 13:08:07,670 INFO L231 Difference]: Finished difference. Result has 192 places, 113 transitions, 1794 flow [2023-08-30 13:08:07,670 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 13:08:07,670 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 154 predicate places. [2023-08-30 13:08:07,670 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 113 transitions, 1794 flow [2023-08-30 13:08:07,670 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 13:08:07,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:07,671 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 13:08:07,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-08-30 13:08:07,671 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 13:08:07,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:07,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1899206799, now seen corresponding path program 9 times [2023-08-30 13:08:07,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:07,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517027111] [2023-08-30 13:08:07,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:07,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:08,225 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 13:08:08,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:08,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517027111] [2023-08-30 13:08:08,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517027111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:08,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:08,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:08:08,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53897483] [2023-08-30 13:08:08,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:08,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:08:08,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:08:08,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:08:08,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 13:08:09,013 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 13:08:09,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:09,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 13:08:09,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:09,284 INFO L130 PetriNetUnfolder]: 94/409 cut-off events. [2023-08-30 13:08:09,284 INFO L131 PetriNetUnfolder]: For 5363/5363 co-relation queries the response was YES. [2023-08-30 13:08:09,285 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 13:08:09,286 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 82 selfloop transitions, 36 changer transitions 2/122 dead transitions. [2023-08-30 13:08:09,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 122 transitions, 2088 flow [2023-08-30 13:08:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:08:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:08:09,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1261 transitions. [2023-08-30 13:08:09,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42774762550881956 [2023-08-30 13:08:09,287 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1261 transitions. [2023-08-30 13:08:09,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1261 transitions. [2023-08-30 13:08:09,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:09,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1261 transitions. [2023-08-30 13:08:09,289 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 13:08:09,290 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 13:08:09,290 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 13:08:09,290 INFO L175 Difference]: Start difference. First operand has 192 places, 113 transitions, 1794 flow. Second operand 11 states and 1261 transitions. [2023-08-30 13:08:09,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 122 transitions, 2088 flow [2023-08-30 13:08:09,299 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 13:08:09,300 INFO L231 Difference]: Finished difference. Result has 167 places, 114 transitions, 1709 flow [2023-08-30 13:08:09,301 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 13:08:09,301 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2023-08-30 13:08:09,301 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 114 transitions, 1709 flow [2023-08-30 13:08:09,301 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 13:08:09,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:09,301 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 13:08:09,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-08-30 13:08:09,302 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 13:08:09,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:09,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1009289706, now seen corresponding path program 10 times [2023-08-30 13:08:09,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:09,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174285219] [2023-08-30 13:08:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:09,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:09,868 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 13:08:09,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:09,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174285219] [2023-08-30 13:08:09,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174285219] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:09,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:09,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:08:09,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706730461] [2023-08-30 13:08:09,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:09,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:08:09,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:09,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:08:09,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:08:10,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 268 [2023-08-30 13:08:10,477 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 13:08:10,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:10,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 268 [2023-08-30 13:08:10,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:10,777 INFO L130 PetriNetUnfolder]: 94/407 cut-off events. [2023-08-30 13:08:10,778 INFO L131 PetriNetUnfolder]: For 5013/5013 co-relation queries the response was YES. [2023-08-30 13:08:10,779 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 13:08:10,779 INFO L137 encePairwiseOnDemand]: 258/268 looper letters, 73 selfloop transitions, 20 changer transitions 26/121 dead transitions. [2023-08-30 13:08:10,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 121 transitions, 1964 flow [2023-08-30 13:08:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:08:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:08:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1238 transitions. [2023-08-30 13:08:10,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41994572591587515 [2023-08-30 13:08:10,781 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1238 transitions. [2023-08-30 13:08:10,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1238 transitions. [2023-08-30 13:08:10,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:10,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1238 transitions. [2023-08-30 13:08:10,783 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 13:08:10,784 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 13:08:10,784 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 13:08:10,784 INFO L175 Difference]: Start difference. First operand has 167 places, 114 transitions, 1709 flow. Second operand 11 states and 1238 transitions. [2023-08-30 13:08:10,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 121 transitions, 1964 flow [2023-08-30 13:08:10,791 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 13:08:10,793 INFO L231 Difference]: Finished difference. Result has 170 places, 95 transitions, 1313 flow [2023-08-30 13:08:10,793 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 13:08:10,793 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 13:08:10,793 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 95 transitions, 1313 flow [2023-08-30 13:08:10,793 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 13:08:10,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:10,794 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 13:08:10,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-08-30 13:08:10,794 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 13:08:10,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1705185318, now seen corresponding path program 11 times [2023-08-30 13:08:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238083237] [2023-08-30 13:08:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:11,159 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 13:08:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:11,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238083237] [2023-08-30 13:08:11,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238083237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:11,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:11,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:08:11,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543181425] [2023-08-30 13:08:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:11,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:08:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:08:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:08:11,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 268 [2023-08-30 13:08:11,654 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 13:08:11,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:11,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 268 [2023-08-30 13:08:11,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:11,868 INFO L130 PetriNetUnfolder]: 76/329 cut-off events. [2023-08-30 13:08:11,868 INFO L131 PetriNetUnfolder]: For 2851/2851 co-relation queries the response was YES. [2023-08-30 13:08:11,869 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 13:08:11,870 INFO L137 encePairwiseOnDemand]: 260/268 looper letters, 22 selfloop transitions, 16 changer transitions 52/94 dead transitions. [2023-08-30 13:08:11,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 94 transitions, 1411 flow [2023-08-30 13:08:11,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:08:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:08:11,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1097 transitions. [2023-08-30 13:08:11,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45480928689883915 [2023-08-30 13:08:11,871 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1097 transitions. [2023-08-30 13:08:11,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1097 transitions. [2023-08-30 13:08:11,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:11,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1097 transitions. [2023-08-30 13:08:11,872 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 13:08:11,873 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 13:08:11,873 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 13:08:11,873 INFO L175 Difference]: Start difference. First operand has 170 places, 95 transitions, 1313 flow. Second operand 9 states and 1097 transitions. [2023-08-30 13:08:11,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 94 transitions, 1411 flow [2023-08-30 13:08:11,878 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 13:08:11,879 INFO L231 Difference]: Finished difference. Result has 130 places, 41 transitions, 410 flow [2023-08-30 13:08:11,879 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 13:08:11,879 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 92 predicate places. [2023-08-30 13:08:11,879 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 41 transitions, 410 flow [2023-08-30 13:08:11,879 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 13:08:11,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:11,880 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 13:08:11,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-08-30 13:08:11,880 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 13:08:11,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 161638679, now seen corresponding path program 10 times [2023-08-30 13:08:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135697163] [2023-08-30 13:08:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:11,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:12,519 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 13:08:12,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:12,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135697163] [2023-08-30 13:08:12,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135697163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:12,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:12,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:08:12,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025256442] [2023-08-30 13:08:12,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:12,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:08:12,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:12,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:08:12,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:08:13,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 268 [2023-08-30 13:08:13,118 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 13:08:13,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:13,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 268 [2023-08-30 13:08:13,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:13,291 INFO L130 PetriNetUnfolder]: 18/101 cut-off events. [2023-08-30 13:08:13,292 INFO L131 PetriNetUnfolder]: For 565/565 co-relation queries the response was YES. [2023-08-30 13:08:13,292 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 13:08:13,292 INFO L137 encePairwiseOnDemand]: 259/268 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-08-30 13:08:13,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 43 transitions, 496 flow [2023-08-30 13:08:13,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:08:13,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:08:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1134 transitions. [2023-08-30 13:08:13,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42313432835820897 [2023-08-30 13:08:13,294 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1134 transitions. [2023-08-30 13:08:13,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1134 transitions. [2023-08-30 13:08:13,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:13,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1134 transitions. [2023-08-30 13:08:13,295 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 13:08:13,296 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 13:08:13,296 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 13:08:13,296 INFO L175 Difference]: Start difference. First operand has 130 places, 41 transitions, 410 flow. Second operand 10 states and 1134 transitions. [2023-08-30 13:08:13,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 43 transitions, 496 flow [2023-08-30 13:08:13,298 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 13:08:13,298 INFO L231 Difference]: Finished difference. Result has 85 places, 0 transitions, 0 flow [2023-08-30 13:08:13,298 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 13:08:13,298 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 47 predicate places. [2023-08-30 13:08:13,298 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 0 transitions, 0 flow [2023-08-30 13:08:13,299 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 13:08:13,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 13:08:13,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 13:08:13,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 13:08:13,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 13:08:13,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 13:08:13,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 13:08:13,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 13:08:13,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 13:08:13,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-08-30 13:08:13,302 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 13:08:13,306 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:08:13,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:08:13,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:08:13 BasicIcfg [2023-08-30 13:08:13,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:08:13,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:08:13,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:08:13,310 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:08:13,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:00" (3/4) ... [2023-08-30 13:08:13,313 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:08:13,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 13:08:13,322 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-08-30 13:08:13,322 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-08-30 13:08:13,322 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:08:13,323 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:08:13,358 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:08:13,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:08:13,359 INFO L158 Benchmark]: Toolchain (without parser) took 133968.62ms. Allocated memory was 73.4MB in the beginning and 2.0GB in the end (delta: 2.0GB). Free memory was 48.8MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 507.2MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,359 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 77.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:08:13,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.07ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.5MB in the beginning and 63.5MB in the end (delta: -14.9MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.89ms. Allocated memory is still 92.3MB. Free memory was 63.5MB in the beginning and 60.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,359 INFO L158 Benchmark]: Boogie Preprocessor took 50.22ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 57.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,359 INFO L158 Benchmark]: RCFGBuilder took 537.78ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 56.9MB in the end (delta: 251.7kB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,360 INFO L158 Benchmark]: TraceAbstraction took 132582.20ms. Allocated memory was 92.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 56.3MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 488.7MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,360 INFO L158 Benchmark]: Witness Printer took 48.38ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:08:13,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 77.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.07ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.5MB in the beginning and 63.5MB in the end (delta: -14.9MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.89ms. Allocated memory is still 92.3MB. Free memory was 63.5MB in the beginning and 60.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.22ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 57.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.78ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 56.9MB in the end (delta: 251.7kB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 132582.20ms. Allocated memory was 92.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 56.3MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 488.7MB. Max. memory is 16.1GB. * Witness Printer took 48.38ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 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: 132.5s, OverallIterations: 79, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 91.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22870 SdHoareTripleChecker+Valid, 39.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18906 mSDsluCounter, 23096 SdHoareTripleChecker+Invalid, 32.9s 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, 18.7s 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, 33.8s 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 13:08:13,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE