./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_3-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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:26:56,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:26:56,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:26:56,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:26:56,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:26:56,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:26:56,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:26:56,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:26:56,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:26:56,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:26:56,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:26:56,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:26:56,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:26:56,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:26:56,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:26:56,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:26:56,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:26:56,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:26:56,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:26:56,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:26:56,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:26:56,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:26:56,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:26:56,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:26:56,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:26:56,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:26:56,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:26:56,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:26:56,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:26:56,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:26:56,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:26:56,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:26:56,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:26:56,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:26:56,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:26:56,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:26:56,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:26:56,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:26:56,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:26:56,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:26:56,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:26:56,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:26:56,235 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:26:56,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:26:56,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:26:56,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:26:56,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:26:56,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:26:56,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:26:56,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:26:56,239 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:26:56,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:26:56,240 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:26:56,240 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:26:56,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:26:56,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:26:56,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:26:56,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:26:56,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:26:56,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:26:56,242 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:26:56,242 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:26:56,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:26:56,242 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:26:56,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:26:56,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:26:56,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:26:56,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:26:56,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:56,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:26:56,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:26:56,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:26:56,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:26:56,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:26:56,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:26:56,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:26:56,245 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:26:56,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:26:56,245 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:26:56,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:26:56,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:26:56,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:26:56,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:26:56,575 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:26:56,576 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:26:56,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-09-01 05:26:57,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:26:58,097 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:26:58,098 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-09-01 05:26:58,119 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a4aac0f/20656ed2f12d4712aa3d0fd7869c75cd/FLAGfd0c228ee [2023-09-01 05:26:58,131 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a4aac0f/20656ed2f12d4712aa3d0fd7869c75cd [2023-09-01 05:26:58,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:26:58,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:26:58,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:58,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:26:58,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:26:58,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6b4733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58, skipping insertion in model container [2023-09-01 05:26:58,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:26:58,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:26:58,320 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-01 05:26:58,751 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_3-container_of.i[75002,75015] [2023-09-01 05:26:58,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:58,790 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:26:58,805 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-01 05:26:58,848 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_3-container_of.i[75002,75015] [2023-09-01 05:26:58,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:58,982 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:58,983 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:58,983 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:58,989 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:26:58,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58 WrapperNode [2023-09-01 05:26:58,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:58,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:58,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:26:58,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:26:58,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,074 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-09-01 05:26:59,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:59,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:26:59,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:26:59,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:26:59,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,141 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:26:59,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:26:59,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:26:59,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:26:59,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:59,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:59,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:26:59,198 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) [2023-09-01 05:26:59,221 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 [2023-09-01 05:26:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:26:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:26:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:26:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:26:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 05:26:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:26:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 05:26:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:26:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:26:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-09-01 05:26:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-09-01 05:26:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:26:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:26:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:26:59,236 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:26:59,547 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:26:59,548 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:26:59,812 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:26:59,866 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:26:59,866 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:26:59,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:59 BoogieIcfgContainer [2023-09-01 05:26:59,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:26:59,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:26:59,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:26:59,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:26:59,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:26:58" (1/3) ... [2023-09-01 05:26:59,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630390de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:59, skipping insertion in model container [2023-09-01 05:26:59,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (2/3) ... [2023-09-01 05:26:59,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630390de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:59, skipping insertion in model container [2023-09-01 05:26:59,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:59" (3/3) ... [2023-09-01 05:26:59,877 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-09-01 05:26:59,884 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:26:59,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:26:59,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-01 05:26:59,894 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:26:59,997 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 05:27:00,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-09-01 05:27:00,125 INFO L130 PetriNetUnfolder]: 8/193 cut-off events. [2023-09-01 05:27:00,125 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 05:27:00,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 8/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 318 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-09-01 05:27:00,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-09-01 05:27:00,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-09-01 05:27:00,143 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:27:00,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-09-01 05:27:00,167 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-09-01 05:27:00,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-09-01 05:27:00,216 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-09-01 05:27:00,217 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 05:27:00,219 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 129 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. [2023-09-01 05:27:00,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 3480 [2023-09-01 05:27:05,620 INFO L134 LiptonReduction]: Checked pairs total: 9917 [2023-09-01 05:27:05,621 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-09-01 05:27:05,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:27:05,636 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;@7a0785e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:27:05,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-09-01 05:27:05,640 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-09-01 05:27:05,640 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:27:05,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:05,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:27:05,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:05,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 520523751, now seen corresponding path program 1 times [2023-09-01 05:27:05,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:05,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369409639] [2023-09-01 05:27:05,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:05,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:06,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:06,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369409639] [2023-09-01 05:27:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369409639] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:06,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:06,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:27:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370285142] [2023-09-01 05:27:06,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:06,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:06,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:06,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 266 [2023-09-01 05:27:06,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 75 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) [2023-09-01 05:27:06,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:06,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 266 [2023-09-01 05:27:06,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:07,054 INFO L130 PetriNetUnfolder]: 1195/1938 cut-off events. [2023-09-01 05:27:07,056 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-09-01 05:27:07,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3898 conditions, 1938 events. 1195/1938 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9116 event pairs, 926 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 3812. Up to 1926 conditions per place. [2023-09-01 05:27:07,071 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 29 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2023-09-01 05:27:07,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 159 flow [2023-09-01 05:27:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-09-01 05:27:07,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.487468671679198 [2023-09-01 05:27:07,093 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-09-01 05:27:07,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-09-01 05:27:07,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:07,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-09-01 05:27:07,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,113 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 75 flow. Second operand 6 states and 778 transitions. [2023-09-01 05:27:07,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 159 flow [2023-09-01 05:27:07,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:07,120 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 115 flow [2023-09-01 05:27:07,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2023-09-01 05:27:07,127 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-09-01 05:27:07,129 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 115 flow [2023-09-01 05:27:07,129 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) [2023-09-01 05:27:07,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:07,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:27:07,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:27:07,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:07,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:07,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1043630122, now seen corresponding path program 1 times [2023-09-01 05:27:07,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:07,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710980112] [2023-09-01 05:27:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:07,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:07,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:07,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710980112] [2023-09-01 05:27:07,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710980112] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:07,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:07,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:07,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589766521] [2023-09-01 05:27:07,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:07,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:07,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:07,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:07,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:07,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-09-01 05:27:07,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 115 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) [2023-09-01 05:27:07,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:07,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-09-01 05:27:07,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:08,135 INFO L130 PetriNetUnfolder]: 1185/1922 cut-off events. [2023-09-01 05:27:08,136 INFO L131 PetriNetUnfolder]: For 354/354 co-relation queries the response was YES. [2023-09-01 05:27:08,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 1922 events. 1185/1922 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9088 event pairs, 772 based on Foata normal form. 3/1595 useless extension candidates. Maximal degree in co-relation 3706. Up to 1889 conditions per place. [2023-09-01 05:27:08,145 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 38 selfloop transitions, 14 changer transitions 0/53 dead transitions. [2023-09-01 05:27:08,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 263 flow [2023-09-01 05:27:08,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:08,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 783 transitions. [2023-09-01 05:27:08,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4906015037593985 [2023-09-01 05:27:08,149 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 783 transitions. [2023-09-01 05:27:08,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 783 transitions. [2023-09-01 05:27:08,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:08,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 783 transitions. [2023-09-01 05:27:08,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,155 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,155 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 115 flow. Second operand 6 states and 783 transitions. [2023-09-01 05:27:08,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 263 flow [2023-09-01 05:27:08,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:08,158 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 196 flow [2023-09-01 05:27:08,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-09-01 05:27:08,158 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 11 predicate places. [2023-09-01 05:27:08,159 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 196 flow [2023-09-01 05:27:08,159 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) [2023-09-01 05:27:08,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:08,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:08,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:27:08,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:08,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2010502852, now seen corresponding path program 1 times [2023-09-01 05:27:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:08,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632873824] [2023-09-01 05:27:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:08,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:08,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:08,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632873824] [2023-09-01 05:27:08,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632873824] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:08,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:08,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:08,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719829845] [2023-09-01 05:27:08,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:08,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:08,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:08,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:08,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:08,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-09-01 05:27:08,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 196 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) [2023-09-01 05:27:08,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:08,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-09-01 05:27:08,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:09,009 INFO L130 PetriNetUnfolder]: 1177/1910 cut-off events. [2023-09-01 05:27:09,010 INFO L131 PetriNetUnfolder]: For 1162/1162 co-relation queries the response was YES. [2023-09-01 05:27:09,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4895 conditions, 1910 events. 1177/1910 cut-off events. For 1162/1162 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9065 event pairs, 867 based on Foata normal form. 0/1584 useless extension candidates. Maximal degree in co-relation 4186. Up to 1885 conditions per place. [2023-09-01 05:27:09,020 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 42 selfloop transitions, 16 changer transitions 0/59 dead transitions. [2023-09-01 05:27:09,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 380 flow [2023-09-01 05:27:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:09,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 781 transitions. [2023-09-01 05:27:09,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4893483709273183 [2023-09-01 05:27:09,023 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 781 transitions. [2023-09-01 05:27:09,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 781 transitions. [2023-09-01 05:27:09,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:09,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 781 transitions. [2023-09-01 05:27:09,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,029 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,029 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 196 flow. Second operand 6 states and 781 transitions. [2023-09-01 05:27:09,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 380 flow [2023-09-01 05:27:09,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 364 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:09,034 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 286 flow [2023-09-01 05:27:09,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2023-09-01 05:27:09,035 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-09-01 05:27:09,035 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 286 flow [2023-09-01 05:27:09,036 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) [2023-09-01 05:27:09,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:09,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:09,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:27:09,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:09,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2137217311, now seen corresponding path program 1 times [2023-09-01 05:27:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:09,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514526228] [2023-09-01 05:27:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:09,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:09,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514526228] [2023-09-01 05:27:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514526228] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:09,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:09,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 05:27:09,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590288820] [2023-09-01 05:27:09,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:09,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:09,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:09,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-09-01 05:27:09,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:09,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-09-01 05:27:09,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:10,129 INFO L130 PetriNetUnfolder]: 1169/1898 cut-off events. [2023-09-01 05:27:10,130 INFO L131 PetriNetUnfolder]: For 907/907 co-relation queries the response was YES. [2023-09-01 05:27:10,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 1898 events. 1169/1898 cut-off events. For 907/907 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8993 event pairs, 673 based on Foata normal form. 2/1664 useless extension candidates. Maximal degree in co-relation 4275. Up to 1847 conditions per place. [2023-09-01 05:27:10,141 INFO L137 encePairwiseOnDemand]: 258/266 looper letters, 52 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2023-09-01 05:27:10,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 475 flow [2023-09-01 05:27:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:27:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:27:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-09-01 05:27:10,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49097744360902257 [2023-09-01 05:27:10,148 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-09-01 05:27:10,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-09-01 05:27:10,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:10,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-09-01 05:27:10,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,153 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,153 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 286 flow. Second operand 5 states and 653 transitions. [2023-09-01 05:27:10,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 475 flow [2023-09-01 05:27:10,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 455 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:10,160 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 345 flow [2023-09-01 05:27:10,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2023-09-01 05:27:10,162 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 23 predicate places. [2023-09-01 05:27:10,162 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 345 flow [2023-09-01 05:27:10,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:10,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:10,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:27:10,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:10,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2098905507, now seen corresponding path program 1 times [2023-09-01 05:27:10,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:10,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011494996] [2023-09-01 05:27:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:10,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011494996] [2023-09-01 05:27:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011494996] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:10,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 05:27:10,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991068438] [2023-09-01 05:27:10,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:10,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:10,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:10,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:10,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-09-01 05:27:10,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 345 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:10,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-09-01 05:27:10,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:11,007 INFO L130 PetriNetUnfolder]: 1181/1916 cut-off events. [2023-09-01 05:27:11,007 INFO L131 PetriNetUnfolder]: For 1625/1625 co-relation queries the response was YES. [2023-09-01 05:27:11,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5525 conditions, 1916 events. 1181/1916 cut-off events. For 1625/1625 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9039 event pairs, 827 based on Foata normal form. 2/1682 useless extension candidates. Maximal degree in co-relation 4693. Up to 1876 conditions per place. [2023-09-01 05:27:11,020 INFO L137 encePairwiseOnDemand]: 256/266 looper letters, 49 selfloop transitions, 28 changer transitions 0/78 dead transitions. [2023-09-01 05:27:11,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 605 flow [2023-09-01 05:27:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:11,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:11,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 779 transitions. [2023-09-01 05:27:11,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2023-09-01 05:27:11,023 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 779 transitions. [2023-09-01 05:27:11,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 779 transitions. [2023-09-01 05:27:11,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:11,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 779 transitions. [2023-09-01 05:27:11,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,029 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,029 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 345 flow. Second operand 6 states and 779 transitions. [2023-09-01 05:27:11,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 605 flow [2023-09-01 05:27:11,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 593 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:11,034 INFO L231 Difference]: Finished difference. Result has 68 places, 73 transitions, 494 flow [2023-09-01 05:27:11,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=68, PETRI_TRANSITIONS=73} [2023-09-01 05:27:11,036 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 29 predicate places. [2023-09-01 05:27:11,036 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 73 transitions, 494 flow [2023-09-01 05:27:11,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:11,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:11,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:27:11,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:11,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2098847847, now seen corresponding path program 2 times [2023-09-01 05:27:11,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:11,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260574431] [2023-09-01 05:27:11,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:11,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:11,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:11,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260574431] [2023-09-01 05:27:11,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260574431] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:11,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:11,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 05:27:11,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825610247] [2023-09-01 05:27:11,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:11,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:11,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:11,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:11,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-09-01 05:27:11,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 73 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:11,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-09-01 05:27:11,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:11,899 INFO L130 PetriNetUnfolder]: 1173/1904 cut-off events. [2023-09-01 05:27:11,899 INFO L131 PetriNetUnfolder]: For 1884/1884 co-relation queries the response was YES. [2023-09-01 05:27:11,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5700 conditions, 1904 events. 1173/1904 cut-off events. For 1884/1884 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9016 event pairs, 795 based on Foata normal form. 2/1672 useless extension candidates. Maximal degree in co-relation 4899. Up to 1854 conditions per place. [2023-09-01 05:27:11,911 INFO L137 encePairwiseOnDemand]: 258/266 looper letters, 58 selfloop transitions, 25 changer transitions 0/84 dead transitions. [2023-09-01 05:27:11,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 84 transitions, 743 flow [2023-09-01 05:27:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:27:11,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:27:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-09-01 05:27:11,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49097744360902257 [2023-09-01 05:27:11,914 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-09-01 05:27:11,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-09-01 05:27:11,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:11,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-09-01 05:27:11,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,918 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,918 INFO L175 Difference]: Start difference. First operand has 68 places, 73 transitions, 494 flow. Second operand 5 states and 653 transitions. [2023-09-01 05:27:11,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 84 transitions, 743 flow [2023-09-01 05:27:11,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 723 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:11,925 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 596 flow [2023-09-01 05:27:11,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=596, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2023-09-01 05:27:11,926 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 33 predicate places. [2023-09-01 05:27:11,926 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 596 flow [2023-09-01 05:27:11,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:11,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:11,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 05:27:11,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:11,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:11,928 INFO L85 PathProgramCache]: Analyzing trace with hash 483271858, now seen corresponding path program 1 times [2023-09-01 05:27:11,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:11,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476214203] [2023-09-01 05:27:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:11,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:12,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:12,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:12,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476214203] [2023-09-01 05:27:12,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476214203] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:12,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:12,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:12,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077118787] [2023-09-01 05:27:12,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:12,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:12,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:12,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:12,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:27:12,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 596 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:12,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:12,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:27:12,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:13,178 INFO L130 PetriNetUnfolder]: 1189/1928 cut-off events. [2023-09-01 05:27:13,179 INFO L131 PetriNetUnfolder]: For 2297/2297 co-relation queries the response was YES. [2023-09-01 05:27:13,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6069 conditions, 1928 events. 1189/1928 cut-off events. For 2297/2297 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9271 event pairs, 651 based on Foata normal form. 4/1698 useless extension candidates. Maximal degree in co-relation 5226. Up to 1885 conditions per place. [2023-09-01 05:27:13,191 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 68 selfloop transitions, 27 changer transitions 0/96 dead transitions. [2023-09-01 05:27:13,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 96 transitions, 887 flow [2023-09-01 05:27:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1007 transitions. [2023-09-01 05:27:13,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2023-09-01 05:27:13,194 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1007 transitions. [2023-09-01 05:27:13,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1007 transitions. [2023-09-01 05:27:13,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:13,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1007 transitions. [2023-09-01 05:27:13,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,200 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,200 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 596 flow. Second operand 8 states and 1007 transitions. [2023-09-01 05:27:13,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 96 transitions, 887 flow [2023-09-01 05:27:13,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 96 transitions, 850 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:13,207 INFO L231 Difference]: Finished difference. Result has 80 places, 89 transitions, 719 flow [2023-09-01 05:27:13,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=719, PETRI_PLACES=80, PETRI_TRANSITIONS=89} [2023-09-01 05:27:13,208 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 41 predicate places. [2023-09-01 05:27:13,208 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 89 transitions, 719 flow [2023-09-01 05:27:13,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:13,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:13,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 05:27:13,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:13,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:13,210 INFO L85 PathProgramCache]: Analyzing trace with hash 483266433, now seen corresponding path program 1 times [2023-09-01 05:27:13,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:13,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630725606] [2023-09-01 05:27:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:13,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:13,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630725606] [2023-09-01 05:27:13,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630725606] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:13,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:13,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098467713] [2023-09-01 05:27:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:13,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:13,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:13,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:13,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-09-01 05:27:13,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 89 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:13,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-09-01 05:27:13,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:13,999 INFO L130 PetriNetUnfolder]: 1597/2616 cut-off events. [2023-09-01 05:27:13,999 INFO L131 PetriNetUnfolder]: For 3640/3640 co-relation queries the response was YES. [2023-09-01 05:27:14,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8474 conditions, 2616 events. 1597/2616 cut-off events. For 3640/3640 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 13917 event pairs, 558 based on Foata normal form. 40/2334 useless extension candidates. Maximal degree in co-relation 8314. Up to 1768 conditions per place. [2023-09-01 05:27:14,023 INFO L137 encePairwiseOnDemand]: 253/266 looper letters, 112 selfloop transitions, 20 changer transitions 0/133 dead transitions. [2023-09-01 05:27:14,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 133 transitions, 1206 flow [2023-09-01 05:27:14,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-09-01 05:27:14,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018796992481203 [2023-09-01 05:27:14,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-09-01 05:27:14,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-09-01 05:27:14,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:14,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-09-01 05:27:14,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,034 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,034 INFO L175 Difference]: Start difference. First operand has 80 places, 89 transitions, 719 flow. Second operand 6 states and 801 transitions. [2023-09-01 05:27:14,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 133 transitions, 1206 flow [2023-09-01 05:27:14,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 133 transitions, 1157 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:14,051 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 815 flow [2023-09-01 05:27:14,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=815, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2023-09-01 05:27:14,053 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 44 predicate places. [2023-09-01 05:27:14,054 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 815 flow [2023-09-01 05:27:14,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:14,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:14,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 05:27:14,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:14,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:14,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1829229238, now seen corresponding path program 2 times [2023-09-01 05:27:14,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:14,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846252899] [2023-09-01 05:27:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:14,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:14,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846252899] [2023-09-01 05:27:14,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846252899] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:14,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:14,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:14,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992119702] [2023-09-01 05:27:14,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:14,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:14,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:14,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:14,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:27:14,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 815 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:14,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:27:14,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:15,399 INFO L130 PetriNetUnfolder]: 1621/2652 cut-off events. [2023-09-01 05:27:15,399 INFO L131 PetriNetUnfolder]: For 5618/5618 co-relation queries the response was YES. [2023-09-01 05:27:15,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9991 conditions, 2652 events. 1621/2652 cut-off events. For 5618/5618 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13917 event pairs, 747 based on Foata normal form. 4/2334 useless extension candidates. Maximal degree in co-relation 9029. Up to 2601 conditions per place. [2023-09-01 05:27:15,420 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 87 selfloop transitions, 35 changer transitions 0/123 dead transitions. [2023-09-01 05:27:15,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 1255 flow [2023-09-01 05:27:15,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:15,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1009 transitions. [2023-09-01 05:27:15,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741541353383459 [2023-09-01 05:27:15,424 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1009 transitions. [2023-09-01 05:27:15,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1009 transitions. [2023-09-01 05:27:15,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:15,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1009 transitions. [2023-09-01 05:27:15,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.125) internal successors, (1009), 8 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,431 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,431 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 815 flow. Second operand 8 states and 1009 transitions. [2023-09-01 05:27:15,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 1255 flow [2023-09-01 05:27:15,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 123 transitions, 1241 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:15,452 INFO L231 Difference]: Finished difference. Result has 91 places, 115 transitions, 1088 flow [2023-09-01 05:27:15,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1088, PETRI_PLACES=91, PETRI_TRANSITIONS=115} [2023-09-01 05:27:15,453 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 52 predicate places. [2023-09-01 05:27:15,454 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 115 transitions, 1088 flow [2023-09-01 05:27:15,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:15,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:15,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 05:27:15,455 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:15,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:15,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1830411268, now seen corresponding path program 3 times [2023-09-01 05:27:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:15,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972772747] [2023-09-01 05:27:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:15,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:16,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:16,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972772747] [2023-09-01 05:27:16,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972772747] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:16,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:16,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:16,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122559780] [2023-09-01 05:27:16,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:16,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:16,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:16,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:16,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:27:16,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 115 transitions, 1088 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:16,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:27:16,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:16,991 INFO L130 PetriNetUnfolder]: 1633/2670 cut-off events. [2023-09-01 05:27:16,992 INFO L131 PetriNetUnfolder]: For 6951/6951 co-relation queries the response was YES. [2023-09-01 05:27:17,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10831 conditions, 2670 events. 1633/2670 cut-off events. For 6951/6951 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 14014 event pairs, 750 based on Foata normal form. 4/2352 useless extension candidates. Maximal degree in co-relation 9524. Up to 2603 conditions per place. [2023-09-01 05:27:17,015 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 84 selfloop transitions, 46 changer transitions 0/131 dead transitions. [2023-09-01 05:27:17,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 131 transitions, 1470 flow [2023-09-01 05:27:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1009 transitions. [2023-09-01 05:27:17,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741541353383459 [2023-09-01 05:27:17,020 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1009 transitions. [2023-09-01 05:27:17,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1009 transitions. [2023-09-01 05:27:17,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:17,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1009 transitions. [2023-09-01 05:27:17,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.125) internal successors, (1009), 8 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,026 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,027 INFO L175 Difference]: Start difference. First operand has 91 places, 115 transitions, 1088 flow. Second operand 8 states and 1009 transitions. [2023-09-01 05:27:17,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 131 transitions, 1470 flow [2023-09-01 05:27:17,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 131 transitions, 1405 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:17,044 INFO L231 Difference]: Finished difference. Result has 97 places, 123 transitions, 1246 flow [2023-09-01 05:27:17,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1246, PETRI_PLACES=97, PETRI_TRANSITIONS=123} [2023-09-01 05:27:17,046 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 58 predicate places. [2023-09-01 05:27:17,046 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 123 transitions, 1246 flow [2023-09-01 05:27:17,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:17,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:17,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 05:27:17,047 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:17,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash -639593780, now seen corresponding path program 1 times [2023-09-01 05:27:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:17,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823391327] [2023-09-01 05:27:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:17,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:17,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823391327] [2023-09-01 05:27:17,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823391327] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:17,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:17,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:17,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953765103] [2023-09-01 05:27:17,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:17,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:17,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:17,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:17,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:17,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:27:17,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 123 transitions, 1246 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:17,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:27:17,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:18,447 INFO L130 PetriNetUnfolder]: 1655/2703 cut-off events. [2023-09-01 05:27:18,448 INFO L131 PetriNetUnfolder]: For 8729/8729 co-relation queries the response was YES. [2023-09-01 05:27:18,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11713 conditions, 2703 events. 1655/2703 cut-off events. For 8729/8729 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14187 event pairs, 912 based on Foata normal form. 4/2385 useless extension candidates. Maximal degree in co-relation 10666. Up to 2660 conditions per place. [2023-09-01 05:27:18,471 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 106 selfloop transitions, 38 changer transitions 0/145 dead transitions. [2023-09-01 05:27:18,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 145 transitions, 1767 flow [2023-09-01 05:27:18,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1004 transitions. [2023-09-01 05:27:18,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4718045112781955 [2023-09-01 05:27:18,474 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1004 transitions. [2023-09-01 05:27:18,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1004 transitions. [2023-09-01 05:27:18,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:18,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1004 transitions. [2023-09-01 05:27:18,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,480 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,481 INFO L175 Difference]: Start difference. First operand has 97 places, 123 transitions, 1246 flow. Second operand 8 states and 1004 transitions. [2023-09-01 05:27:18,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 145 transitions, 1767 flow [2023-09-01 05:27:18,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 145 transitions, 1696 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:18,504 INFO L231 Difference]: Finished difference. Result has 103 places, 139 transitions, 1506 flow [2023-09-01 05:27:18,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1189, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1506, PETRI_PLACES=103, PETRI_TRANSITIONS=139} [2023-09-01 05:27:18,505 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 64 predicate places. [2023-09-01 05:27:18,505 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 139 transitions, 1506 flow [2023-09-01 05:27:18,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:18,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:18,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 05:27:18,507 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:18,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:18,507 INFO L85 PathProgramCache]: Analyzing trace with hash -647176256, now seen corresponding path program 1 times [2023-09-01 05:27:18,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:18,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460306762] [2023-09-01 05:27:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:18,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:18,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:18,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460306762] [2023-09-01 05:27:18,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460306762] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:18,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:18,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:18,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644095045] [2023-09-01 05:27:18,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:18,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:18,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:18,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:18,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:18,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-09-01 05:27:18,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 139 transitions, 1506 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:18,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-09-01 05:27:18,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:19,477 INFO L130 PetriNetUnfolder]: 2216/3584 cut-off events. [2023-09-01 05:27:19,477 INFO L131 PetriNetUnfolder]: For 15061/15061 co-relation queries the response was YES. [2023-09-01 05:27:19,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16094 conditions, 3584 events. 2216/3584 cut-off events. For 15061/15061 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 20061 event pairs, 548 based on Foata normal form. 69/3250 useless extension candidates. Maximal degree in co-relation 15403. Up to 2403 conditions per place. [2023-09-01 05:27:19,502 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 153 selfloop transitions, 50 changer transitions 0/204 dead transitions. [2023-09-01 05:27:19,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 204 transitions, 2327 flow [2023-09-01 05:27:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 05:27:19,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 05:27:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 936 transitions. [2023-09-01 05:27:19,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026852846401718 [2023-09-01 05:27:19,506 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 936 transitions. [2023-09-01 05:27:19,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 936 transitions. [2023-09-01 05:27:19,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:19,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 936 transitions. [2023-09-01 05:27:19,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.71428571428572) internal successors, (936), 7 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,511 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,512 INFO L175 Difference]: Start difference. First operand has 103 places, 139 transitions, 1506 flow. Second operand 7 states and 936 transitions. [2023-09-01 05:27:19,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 204 transitions, 2327 flow [2023-09-01 05:27:19,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 204 transitions, 2247 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:19,552 INFO L231 Difference]: Finished difference. Result has 109 places, 170 transitions, 1902 flow [2023-09-01 05:27:19,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1426, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1902, PETRI_PLACES=109, PETRI_TRANSITIONS=170} [2023-09-01 05:27:19,552 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 70 predicate places. [2023-09-01 05:27:19,553 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 170 transitions, 1902 flow [2023-09-01 05:27:19,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:19,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:19,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 05:27:19,554 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:19,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:19,554 INFO L85 PathProgramCache]: Analyzing trace with hash -636018860, now seen corresponding path program 2 times [2023-09-01 05:27:19,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:19,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981657210] [2023-09-01 05:27:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:19,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981657210] [2023-09-01 05:27:19,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981657210] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:19,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:19,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:19,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962283967] [2023-09-01 05:27:19,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:19,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:20,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:27:20,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 170 transitions, 1902 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:20,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:27:20,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:21,113 INFO L130 PetriNetUnfolder]: 2196/3554 cut-off events. [2023-09-01 05:27:21,113 INFO L131 PetriNetUnfolder]: For 21763/21763 co-relation queries the response was YES. [2023-09-01 05:27:21,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18751 conditions, 3554 events. 2196/3554 cut-off events. For 21763/21763 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 19865 event pairs, 1022 based on Foata normal form. 4/3163 useless extension candidates. Maximal degree in co-relation 18456. Up to 3504 conditions per place. [2023-09-01 05:27:21,139 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 137 selfloop transitions, 53 changer transitions 0/191 dead transitions. [2023-09-01 05:27:21,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 191 transitions, 2512 flow [2023-09-01 05:27:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:21,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1370 transitions. [2023-09-01 05:27:21,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46821599453178403 [2023-09-01 05:27:21,144 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1370 transitions. [2023-09-01 05:27:21,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1370 transitions. [2023-09-01 05:27:21,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:21,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1370 transitions. [2023-09-01 05:27:21,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 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) [2023-09-01 05:27:21,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,162 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,162 INFO L175 Difference]: Start difference. First operand has 109 places, 170 transitions, 1902 flow. Second operand 11 states and 1370 transitions. [2023-09-01 05:27:21,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 191 transitions, 2512 flow [2023-09-01 05:27:21,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 2454 flow, removed 26 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:21,260 INFO L231 Difference]: Finished difference. Result has 121 places, 186 transitions, 2236 flow [2023-09-01 05:27:21,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1844, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2236, PETRI_PLACES=121, PETRI_TRANSITIONS=186} [2023-09-01 05:27:21,262 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 82 predicate places. [2023-09-01 05:27:21,262 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 186 transitions, 2236 flow [2023-09-01 05:27:21,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:21,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:21,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 05:27:21,263 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:21,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash -647171263, now seen corresponding path program 2 times [2023-09-01 05:27:21,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:21,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524857112] [2023-09-01 05:27:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:21,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:21,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:21,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524857112] [2023-09-01 05:27:21,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524857112] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:21,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:21,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:21,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053244763] [2023-09-01 05:27:21,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:21,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:21,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:21,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:21,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:21,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-09-01 05:27:21,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 186 transitions, 2236 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:21,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-09-01 05:27:21,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:22,165 INFO L130 PetriNetUnfolder]: 2454/3963 cut-off events. [2023-09-01 05:27:22,165 INFO L131 PetriNetUnfolder]: For 25533/25533 co-relation queries the response was YES. [2023-09-01 05:27:22,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21159 conditions, 3963 events. 2454/3963 cut-off events. For 25533/25533 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22883 event pairs, 530 based on Foata normal form. 40/3585 useless extension candidates. Maximal degree in co-relation 20723. Up to 2593 conditions per place. [2023-09-01 05:27:22,197 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 169 selfloop transitions, 67 changer transitions 0/237 dead transitions. [2023-09-01 05:27:22,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 237 transitions, 3157 flow [2023-09-01 05:27:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 05:27:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 05:27:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 927 transitions. [2023-09-01 05:27:22,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49785177228786254 [2023-09-01 05:27:22,201 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 927 transitions. [2023-09-01 05:27:22,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 927 transitions. [2023-09-01 05:27:22,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:22,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 927 transitions. [2023-09-01 05:27:22,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 132.42857142857142) internal successors, (927), 7 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,207 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,207 INFO L175 Difference]: Start difference. First operand has 121 places, 186 transitions, 2236 flow. Second operand 7 states and 927 transitions. [2023-09-01 05:27:22,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 237 transitions, 3157 flow [2023-09-01 05:27:22,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 237 transitions, 3076 flow, removed 33 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:22,275 INFO L231 Difference]: Finished difference. Result has 126 places, 212 transitions, 2639 flow [2023-09-01 05:27:22,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2155, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2639, PETRI_PLACES=126, PETRI_TRANSITIONS=212} [2023-09-01 05:27:22,276 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2023-09-01 05:27:22,276 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 212 transitions, 2639 flow [2023-09-01 05:27:22,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:22,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:22,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 05:27:22,277 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:22,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash -641669726, now seen corresponding path program 2 times [2023-09-01 05:27:22,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:22,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923451353] [2023-09-01 05:27:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:22,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:22,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:22,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923451353] [2023-09-01 05:27:22,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923451353] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:22,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:22,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:22,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407777007] [2023-09-01 05:27:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:22,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:22,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:22,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-09-01 05:27:22,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 212 transitions, 2639 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:22,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-09-01 05:27:22,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:23,169 INFO L130 PetriNetUnfolder]: 2501/4091 cut-off events. [2023-09-01 05:27:23,169 INFO L131 PetriNetUnfolder]: For 35084/35084 co-relation queries the response was YES. [2023-09-01 05:27:23,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23212 conditions, 4091 events. 2501/4091 cut-off events. For 35084/35084 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 23950 event pairs, 626 based on Foata normal form. 96/3816 useless extension candidates. Maximal degree in co-relation 23102. Up to 2728 conditions per place. [2023-09-01 05:27:23,201 INFO L137 encePairwiseOnDemand]: 253/266 looper letters, 227 selfloop transitions, 73 changer transitions 0/301 dead transitions. [2023-09-01 05:27:23,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 301 transitions, 4143 flow [2023-09-01 05:27:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 806 transitions. [2023-09-01 05:27:23,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050125313283208 [2023-09-01 05:27:23,205 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 806 transitions. [2023-09-01 05:27:23,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 806 transitions. [2023-09-01 05:27:23,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:23,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 806 transitions. [2023-09-01 05:27:23,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,210 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,210 INFO L175 Difference]: Start difference. First operand has 126 places, 212 transitions, 2639 flow. Second operand 6 states and 806 transitions. [2023-09-01 05:27:23,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 301 transitions, 4143 flow [2023-09-01 05:27:23,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 301 transitions, 4040 flow, removed 50 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:23,428 INFO L231 Difference]: Finished difference. Result has 131 places, 251 transitions, 3378 flow [2023-09-01 05:27:23,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2564, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3378, PETRI_PLACES=131, PETRI_TRANSITIONS=251} [2023-09-01 05:27:23,429 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 92 predicate places. [2023-09-01 05:27:23,429 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 251 transitions, 3378 flow [2023-09-01 05:27:23,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:23,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:23,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 05:27:23,430 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:23,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:23,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2090594741, now seen corresponding path program 1 times [2023-09-01 05:27:23,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:23,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211642750] [2023-09-01 05:27:23,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:23,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:24,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:24,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211642750] [2023-09-01 05:27:24,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211642750] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:24,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:24,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:24,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529071668] [2023-09-01 05:27:24,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:24,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:24,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:24,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:24,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:27:24,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 251 transitions, 3378 flow. Second operand has 11 states, 11 states have (on average 118.9090909090909) internal successors, (1308), 11 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:24,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:27:24,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:25,270 INFO L130 PetriNetUnfolder]: 2559/4178 cut-off events. [2023-09-01 05:27:25,270 INFO L131 PetriNetUnfolder]: For 39825/39825 co-relation queries the response was YES. [2023-09-01 05:27:25,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25557 conditions, 4178 events. 2559/4178 cut-off events. For 39825/39825 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 24491 event pairs, 1005 based on Foata normal form. 8/3815 useless extension candidates. Maximal degree in co-relation 25443. Up to 4018 conditions per place. [2023-09-01 05:27:25,300 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 190 selfloop transitions, 111 changer transitions 0/302 dead transitions. [2023-09-01 05:27:25,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 302 transitions, 4636 flow [2023-09-01 05:27:25,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:27:25,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:27:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1269 transitions. [2023-09-01 05:27:25,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4770676691729323 [2023-09-01 05:27:25,304 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1269 transitions. [2023-09-01 05:27:25,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1269 transitions. [2023-09-01 05:27:25,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:25,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1269 transitions. [2023-09-01 05:27:25,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.9) internal successors, (1269), 10 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,310 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,311 INFO L175 Difference]: Start difference. First operand has 131 places, 251 transitions, 3378 flow. Second operand 10 states and 1269 transitions. [2023-09-01 05:27:25,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 302 transitions, 4636 flow [2023-09-01 05:27:25,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 302 transitions, 4601 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:25,452 INFO L231 Difference]: Finished difference. Result has 141 places, 289 transitions, 4275 flow [2023-09-01 05:27:25,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3349, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4275, PETRI_PLACES=141, PETRI_TRANSITIONS=289} [2023-09-01 05:27:25,453 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 102 predicate places. [2023-09-01 05:27:25,453 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 289 transitions, 4275 flow [2023-09-01 05:27:25,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.9090909090909) internal successors, (1308), 11 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:25,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:25,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 05:27:25,454 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:25,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:25,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1588919953, now seen corresponding path program 2 times [2023-09-01 05:27:25,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:25,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508985062] [2023-09-01 05:27:25,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:25,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:25,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508985062] [2023-09-01 05:27:25,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508985062] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:25,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:25,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:25,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177226471] [2023-09-01 05:27:25,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:25,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:25,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:25,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:25,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:26,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:27:26,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 289 transitions, 4275 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:26,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:27:26,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:27,322 INFO L130 PetriNetUnfolder]: 2642/4304 cut-off events. [2023-09-01 05:27:27,322 INFO L131 PetriNetUnfolder]: For 47527/47527 co-relation queries the response was YES. [2023-09-01 05:27:27,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27929 conditions, 4304 events. 2642/4304 cut-off events. For 47527/47527 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 25167 event pairs, 970 based on Foata normal form. 8/3941 useless extension candidates. Maximal degree in co-relation 27490. Up to 4148 conditions per place. [2023-09-01 05:27:27,346 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 220 selfloop transitions, 142 changer transitions 0/363 dead transitions. [2023-09-01 05:27:27,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 363 transitions, 6160 flow [2023-09-01 05:27:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:27,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1493 transitions. [2023-09-01 05:27:27,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46773182957393483 [2023-09-01 05:27:27,350 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1493 transitions. [2023-09-01 05:27:27,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1493 transitions. [2023-09-01 05:27:27,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:27,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1493 transitions. [2023-09-01 05:27:27,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 124.41666666666667) internal successors, (1493), 12 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,358 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,358 INFO L175 Difference]: Start difference. First operand has 141 places, 289 transitions, 4275 flow. Second operand 12 states and 1493 transitions. [2023-09-01 05:27:27,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 363 transitions, 6160 flow [2023-09-01 05:27:27,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 363 transitions, 6005 flow, removed 58 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:27,500 INFO L231 Difference]: Finished difference. Result has 155 places, 352 transitions, 5717 flow [2023-09-01 05:27:27,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4145, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5717, PETRI_PLACES=155, PETRI_TRANSITIONS=352} [2023-09-01 05:27:27,501 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 116 predicate places. [2023-09-01 05:27:27,501 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 352 transitions, 5717 flow [2023-09-01 05:27:27,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:27,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:27,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 05:27:27,503 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:27,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1592460463, now seen corresponding path program 3 times [2023-09-01 05:27:27,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:27,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179184567] [2023-09-01 05:27:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:27,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:28,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:28,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179184567] [2023-09-01 05:27:28,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179184567] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:28,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:28,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:28,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321905019] [2023-09-01 05:27:28,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:28,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:28,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:28,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:28,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:28,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:27:28,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 352 transitions, 5717 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:28,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:27:28,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:29,535 INFO L130 PetriNetUnfolder]: 2602/4234 cut-off events. [2023-09-01 05:27:29,535 INFO L131 PetriNetUnfolder]: For 52954/52954 co-relation queries the response was YES. [2023-09-01 05:27:29,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28720 conditions, 4234 events. 2602/4234 cut-off events. For 52954/52954 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24752 event pairs, 1017 based on Foata normal form. 8/3891 useless extension candidates. Maximal degree in co-relation 27888. Up to 4097 conditions per place. [2023-09-01 05:27:29,558 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 252 selfloop transitions, 129 changer transitions 0/382 dead transitions. [2023-09-01 05:27:29,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 382 transitions, 6901 flow [2023-09-01 05:27:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:29,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1495 transitions. [2023-09-01 05:27:29,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4683583959899749 [2023-09-01 05:27:29,570 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1495 transitions. [2023-09-01 05:27:29,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1495 transitions. [2023-09-01 05:27:29,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:29,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1495 transitions. [2023-09-01 05:27:29,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 124.58333333333333) internal successors, (1495), 12 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) [2023-09-01 05:27:29,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,580 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,580 INFO L175 Difference]: Start difference. First operand has 155 places, 352 transitions, 5717 flow. Second operand 12 states and 1495 transitions. [2023-09-01 05:27:29,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 382 transitions, 6901 flow [2023-09-01 05:27:29,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 382 transitions, 6757 flow, removed 51 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:29,742 INFO L231 Difference]: Finished difference. Result has 166 places, 370 transitions, 6308 flow [2023-09-01 05:27:29,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5578, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6308, PETRI_PLACES=166, PETRI_TRANSITIONS=370} [2023-09-01 05:27:29,743 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 127 predicate places. [2023-09-01 05:27:29,743 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 370 transitions, 6308 flow [2023-09-01 05:27:29,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:29,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:29,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 05:27:29,744 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:29,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:29,745 INFO L85 PathProgramCache]: Analyzing trace with hash 649032021, now seen corresponding path program 1 times [2023-09-01 05:27:29,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:29,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488928900] [2023-09-01 05:27:29,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:29,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:30,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:30,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488928900] [2023-09-01 05:27:30,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488928900] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:30,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:30,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:30,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271041207] [2023-09-01 05:27:30,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:30,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:30,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:30,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:30,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:30,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-09-01 05:27:30,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 370 transitions, 6308 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:30,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-09-01 05:27:30,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:31,726 INFO L130 PetriNetUnfolder]: 4172/6986 cut-off events. [2023-09-01 05:27:31,726 INFO L131 PetriNetUnfolder]: For 94739/94750 co-relation queries the response was YES. [2023-09-01 05:27:31,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47889 conditions, 6986 events. 4172/6986 cut-off events. For 94739/94750 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 47331 event pairs, 1094 based on Foata normal form. 0/6340 useless extension candidates. Maximal degree in co-relation 47212. Up to 2347 conditions per place. [2023-09-01 05:27:31,865 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 426 selfloop transitions, 109 changer transitions 5/588 dead transitions. [2023-09-01 05:27:31,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 588 transitions, 10204 flow [2023-09-01 05:27:31,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:31,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1275 transitions. [2023-09-01 05:27:31,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325814536340853 [2023-09-01 05:27:31,867 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1275 transitions. [2023-09-01 05:27:31,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1275 transitions. [2023-09-01 05:27:31,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:31,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1275 transitions. [2023-09-01 05:27:31,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.66666666666666) internal successors, (1275), 9 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,872 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,872 INFO L175 Difference]: Start difference. First operand has 166 places, 370 transitions, 6308 flow. Second operand 9 states and 1275 transitions. [2023-09-01 05:27:31,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 588 transitions, 10204 flow [2023-09-01 05:27:32,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 588 transitions, 10065 flow, removed 62 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:32,110 INFO L231 Difference]: Finished difference. Result has 175 places, 408 transitions, 7324 flow [2023-09-01 05:27:32,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=6173, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7324, PETRI_PLACES=175, PETRI_TRANSITIONS=408} [2023-09-01 05:27:32,111 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 136 predicate places. [2023-09-01 05:27:32,111 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 408 transitions, 7324 flow [2023-09-01 05:27:32,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:32,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:32,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:32,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-09-01 05:27:32,111 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:32,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:32,112 INFO L85 PathProgramCache]: Analyzing trace with hash 645920242, now seen corresponding path program 1 times [2023-09-01 05:27:32,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:32,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66365385] [2023-09-01 05:27:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:32,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:32,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:32,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:32,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66365385] [2023-09-01 05:27:32,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66365385] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:32,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:32,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:32,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45521805] [2023-09-01 05:27:32,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:32,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:32,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:32,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:32,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:33,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:27:33,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 408 transitions, 7324 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:33,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:27:33,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:35,641 INFO L130 PetriNetUnfolder]: 4582/7595 cut-off events. [2023-09-01 05:27:35,641 INFO L131 PetriNetUnfolder]: For 171677/171677 co-relation queries the response was YES. [2023-09-01 05:27:35,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55207 conditions, 7595 events. 4582/7595 cut-off events. For 171677/171677 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 50716 event pairs, 1347 based on Foata normal form. 8/7291 useless extension candidates. Maximal degree in co-relation 54396. Up to 6907 conditions per place. [2023-09-01 05:27:35,703 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 390 selfloop transitions, 142 changer transitions 20/553 dead transitions. [2023-09-01 05:27:35,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 553 transitions, 10791 flow [2023-09-01 05:27:35,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-01 05:27:35,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-09-01 05:27:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2712 transitions. [2023-09-01 05:27:35,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634313055365687 [2023-09-01 05:27:35,707 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2712 transitions. [2023-09-01 05:27:35,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2712 transitions. [2023-09-01 05:27:35,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:35,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2712 transitions. [2023-09-01 05:27:35,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 123.27272727272727) internal successors, (2712), 22 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,718 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,718 INFO L175 Difference]: Start difference. First operand has 175 places, 408 transitions, 7324 flow. Second operand 22 states and 2712 transitions. [2023-09-01 05:27:35,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 553 transitions, 10791 flow [2023-09-01 05:27:36,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 553 transitions, 10766 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:36,164 INFO L231 Difference]: Finished difference. Result has 201 places, 478 transitions, 8993 flow [2023-09-01 05:27:36,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=7302, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8993, PETRI_PLACES=201, PETRI_TRANSITIONS=478} [2023-09-01 05:27:36,165 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 162 predicate places. [2023-09-01 05:27:36,165 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 478 transitions, 8993 flow [2023-09-01 05:27:36,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:36,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:36,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-09-01 05:27:36,167 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:36,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:36,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1145301042, now seen corresponding path program 2 times [2023-09-01 05:27:36,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:36,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871875529] [2023-09-01 05:27:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:36,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:36,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871875529] [2023-09-01 05:27:36,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871875529] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:36,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:36,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:36,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409243297] [2023-09-01 05:27:36,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:36,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:36,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:36,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:36,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:37,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:27:37,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 478 transitions, 8993 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:37,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:37,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:27:37,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:39,578 INFO L130 PetriNetUnfolder]: 4572/7593 cut-off events. [2023-09-01 05:27:39,579 INFO L131 PetriNetUnfolder]: For 189391/189391 co-relation queries the response was YES. [2023-09-01 05:27:39,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57077 conditions, 7593 events. 4572/7593 cut-off events. For 189391/189391 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 50818 event pairs, 1672 based on Foata normal form. 6/7287 useless extension candidates. Maximal degree in co-relation 56936. Up to 6974 conditions per place. [2023-09-01 05:27:39,638 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 378 selfloop transitions, 153 changer transitions 4/536 dead transitions. [2023-09-01 05:27:39,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 536 transitions, 10789 flow [2023-09-01 05:27:39,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-09-01 05:27:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-09-01 05:27:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2343 transitions. [2023-09-01 05:27:39,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46359319351009104 [2023-09-01 05:27:39,641 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2343 transitions. [2023-09-01 05:27:39,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2343 transitions. [2023-09-01 05:27:39,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:39,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2343 transitions. [2023-09-01 05:27:39,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 123.3157894736842) internal successors, (2343), 19 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 266.0) internal successors, (5320), 20 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,651 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 266.0) internal successors, (5320), 20 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,651 INFO L175 Difference]: Start difference. First operand has 201 places, 478 transitions, 8993 flow. Second operand 19 states and 2343 transitions. [2023-09-01 05:27:39,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 536 transitions, 10789 flow [2023-09-01 05:27:40,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 536 transitions, 10376 flow, removed 122 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:40,185 INFO L231 Difference]: Finished difference. Result has 218 places, 498 transitions, 9400 flow [2023-09-01 05:27:40,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=8618, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9400, PETRI_PLACES=218, PETRI_TRANSITIONS=498} [2023-09-01 05:27:40,186 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 179 predicate places. [2023-09-01 05:27:40,187 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 498 transitions, 9400 flow [2023-09-01 05:27:40,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:40,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:40,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:40,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-09-01 05:27:40,188 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:40,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash -431228113, now seen corresponding path program 2 times [2023-09-01 05:27:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:40,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806240492] [2023-09-01 05:27:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:40,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:40,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806240492] [2023-09-01 05:27:40,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806240492] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:40,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:40,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:40,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746393116] [2023-09-01 05:27:40,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:40,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:27:40,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:40,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:27:40,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:27:41,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-09-01 05:27:41,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 498 transitions, 9400 flow. Second operand has 9 states, 9 states have (on average 120.22222222222223) internal successors, (1082), 9 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:41,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-09-01 05:27:41,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:44,004 INFO L130 PetriNetUnfolder]: 6580/11087 cut-off events. [2023-09-01 05:27:44,004 INFO L131 PetriNetUnfolder]: For 303408/303408 co-relation queries the response was YES. [2023-09-01 05:27:44,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84616 conditions, 11087 events. 6580/11087 cut-off events. For 303408/303408 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 80738 event pairs, 1247 based on Foata normal form. 22/10731 useless extension candidates. Maximal degree in co-relation 83509. Up to 4046 conditions per place. [2023-09-01 05:27:44,121 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 415 selfloop transitions, 368 changer transitions 22/806 dead transitions. [2023-09-01 05:27:44,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 806 transitions, 15837 flow [2023-09-01 05:27:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:44,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1729 transitions. [2023-09-01 05:27:44,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-09-01 05:27:44,126 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1729 transitions. [2023-09-01 05:27:44,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1729 transitions. [2023-09-01 05:27:44,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:44,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1729 transitions. [2023-09-01 05:27:44,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 266.0) internal successors, (3724), 14 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,132 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 266.0) internal successors, (3724), 14 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,132 INFO L175 Difference]: Start difference. First operand has 218 places, 498 transitions, 9400 flow. Second operand 13 states and 1729 transitions. [2023-09-01 05:27:44,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 806 transitions, 15837 flow [2023-09-01 05:27:45,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 806 transitions, 15548 flow, removed 66 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:45,260 INFO L231 Difference]: Finished difference. Result has 232 places, 654 transitions, 13713 flow [2023-09-01 05:27:45,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=9151, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13713, PETRI_PLACES=232, PETRI_TRANSITIONS=654} [2023-09-01 05:27:45,261 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 193 predicate places. [2023-09-01 05:27:45,261 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 654 transitions, 13713 flow [2023-09-01 05:27:45,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.22222222222223) internal successors, (1082), 9 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:45,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:45,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-09-01 05:27:45,262 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:45,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:45,263 INFO L85 PathProgramCache]: Analyzing trace with hash -437179853, now seen corresponding path program 3 times [2023-09-01 05:27:45,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:45,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095196973] [2023-09-01 05:27:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:45,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:45,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095196973] [2023-09-01 05:27:45,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095196973] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:45,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:45,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:45,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462938808] [2023-09-01 05:27:45,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:45,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:45,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:45,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:45,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-09-01 05:27:45,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 654 transitions, 13713 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:45,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-09-01 05:27:45,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:48,862 INFO L130 PetriNetUnfolder]: 7838/13496 cut-off events. [2023-09-01 05:27:48,862 INFO L131 PetriNetUnfolder]: For 462945/463279 co-relation queries the response was YES. [2023-09-01 05:27:48,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111395 conditions, 13496 events. 7838/13496 cut-off events. For 462945/463279 co-relation queries the response was YES. Maximal size of possible extension queue 961. Compared 105682 event pairs, 2114 based on Foata normal form. 128/13026 useless extension candidates. Maximal degree in co-relation 109581. Up to 5908 conditions per place. [2023-09-01 05:27:48,986 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 606 selfloop transitions, 190 changer transitions 3/866 dead transitions. [2023-09-01 05:27:48,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 866 transitions, 19005 flow [2023-09-01 05:27:48,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1125 transitions. [2023-09-01 05:27:48,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286654135338346 [2023-09-01 05:27:48,988 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1125 transitions. [2023-09-01 05:27:48,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1125 transitions. [2023-09-01 05:27:48,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:48,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1125 transitions. [2023-09-01 05:27:48,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.625) internal successors, (1125), 8 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,992 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,992 INFO L175 Difference]: Start difference. First operand has 232 places, 654 transitions, 13713 flow. Second operand 8 states and 1125 transitions. [2023-09-01 05:27:48,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 866 transitions, 19005 flow [2023-09-01 05:27:50,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 866 transitions, 18674 flow, removed 145 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:50,997 INFO L231 Difference]: Finished difference. Result has 238 places, 702 transitions, 15452 flow [2023-09-01 05:27:50,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=13460, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15452, PETRI_PLACES=238, PETRI_TRANSITIONS=702} [2023-09-01 05:27:50,998 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 199 predicate places. [2023-09-01 05:27:50,998 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 702 transitions, 15452 flow [2023-09-01 05:27:50,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:50,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:50,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-09-01 05:27:50,999 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:51,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:51,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1330336417, now seen corresponding path program 1 times [2023-09-01 05:27:51,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:51,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885728612] [2023-09-01 05:27:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:51,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:51,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:51,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885728612] [2023-09-01 05:27:51,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885728612] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:51,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:51,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:51,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849974941] [2023-09-01 05:27:51,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:51,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:51,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:51,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-09-01 05:27:51,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 702 transitions, 15452 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:51,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-09-01 05:27:51,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:55,659 INFO L130 PetriNetUnfolder]: 8007/13869 cut-off events. [2023-09-01 05:27:55,659 INFO L131 PetriNetUnfolder]: For 492571/492809 co-relation queries the response was YES. [2023-09-01 05:27:55,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115144 conditions, 13869 events. 8007/13869 cut-off events. For 492571/492809 co-relation queries the response was YES. Maximal size of possible extension queue 970. Compared 109646 event pairs, 2125 based on Foata normal form. 122/13400 useless extension candidates. Maximal degree in co-relation 113066. Up to 4236 conditions per place. [2023-09-01 05:27:55,790 INFO L137 encePairwiseOnDemand]: 254/266 looper letters, 671 selfloop transitions, 260 changer transitions 7/1005 dead transitions. [2023-09-01 05:27:55,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1005 transitions, 22177 flow [2023-09-01 05:27:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:27:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:27:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1402 transitions. [2023-09-01 05:27:55,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270676691729324 [2023-09-01 05:27:55,792 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1402 transitions. [2023-09-01 05:27:55,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1402 transitions. [2023-09-01 05:27:55,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:55,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1402 transitions. [2023-09-01 05:27:55,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:55,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:55,797 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:55,797 INFO L175 Difference]: Start difference. First operand has 238 places, 702 transitions, 15452 flow. Second operand 10 states and 1402 transitions. [2023-09-01 05:27:55,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1005 transitions, 22177 flow [2023-09-01 05:27:58,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1005 transitions, 21929 flow, removed 99 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:58,206 INFO L231 Difference]: Finished difference. Result has 247 places, 759 transitions, 17390 flow [2023-09-01 05:27:58,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=15226, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17390, PETRI_PLACES=247, PETRI_TRANSITIONS=759} [2023-09-01 05:27:58,207 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 208 predicate places. [2023-09-01 05:27:58,207 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 759 transitions, 17390 flow [2023-09-01 05:27:58,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:58,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:58,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-09-01 05:27:58,208 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:58,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:58,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1545937541, now seen corresponding path program 1 times [2023-09-01 05:27:58,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:58,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856560783] [2023-09-01 05:27:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:58,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856560783] [2023-09-01 05:27:59,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856560783] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:59,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:59,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 05:27:59,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939745625] [2023-09-01 05:27:59,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:59,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 05:27:59,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:59,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 05:27:59,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-09-01 05:27:59,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-09-01 05:27:59,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 759 transitions, 17390 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:59,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-09-01 05:27:59,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:04,624 INFO L130 PetriNetUnfolder]: 8583/14703 cut-off events. [2023-09-01 05:28:04,624 INFO L131 PetriNetUnfolder]: For 542615/542615 co-relation queries the response was YES. [2023-09-01 05:28:04,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124242 conditions, 14703 events. 8583/14703 cut-off events. For 542615/542615 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 115178 event pairs, 3107 based on Foata normal form. 139/14328 useless extension candidates. Maximal degree in co-relation 118423. Up to 13167 conditions per place. [2023-09-01 05:28:04,788 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 614 selfloop transitions, 273 changer transitions 49/937 dead transitions. [2023-09-01 05:28:04,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 937 transitions, 23380 flow [2023-09-01 05:28:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-01 05:28:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-09-01 05:28:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2945 transitions. [2023-09-01 05:28:04,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46130952380952384 [2023-09-01 05:28:04,792 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2945 transitions. [2023-09-01 05:28:04,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2945 transitions. [2023-09-01 05:28:04,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:04,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2945 transitions. [2023-09-01 05:28:04,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 122.70833333333333) internal successors, (2945), 24 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:04,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:04,802 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:04,802 INFO L175 Difference]: Start difference. First operand has 247 places, 759 transitions, 17390 flow. Second operand 24 states and 2945 transitions. [2023-09-01 05:28:04,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 937 transitions, 23380 flow [2023-09-01 05:28:07,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 937 transitions, 23177 flow, removed 101 selfloop flow, removed 1 redundant places. [2023-09-01 05:28:07,699 INFO L231 Difference]: Finished difference. Result has 280 places, 791 transitions, 18917 flow [2023-09-01 05:28:07,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=17223, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=18917, PETRI_PLACES=280, PETRI_TRANSITIONS=791} [2023-09-01 05:28:07,700 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 241 predicate places. [2023-09-01 05:28:07,700 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 791 transitions, 18917 flow [2023-09-01 05:28:07,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:07,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:07,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:07,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-09-01 05:28:07,701 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:07,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash -246887853, now seen corresponding path program 4 times [2023-09-01 05:28:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660478859] [2023-09-01 05:28:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:08,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:08,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660478859] [2023-09-01 05:28:08,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660478859] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:08,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:08,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:28:08,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969577646] [2023-09-01 05:28:08,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:08,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:28:08,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:08,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:28:08,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:28:08,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-09-01 05:28:08,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 791 transitions, 18917 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:08,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:08,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-09-01 05:28:08,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:12,882 INFO L130 PetriNetUnfolder]: 8452/14710 cut-off events. [2023-09-01 05:28:12,882 INFO L131 PetriNetUnfolder]: For 548667/549431 co-relation queries the response was YES. [2023-09-01 05:28:13,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126742 conditions, 14710 events. 8452/14710 cut-off events. For 548667/549431 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 118154 event pairs, 1900 based on Foata normal form. 33/14077 useless extension candidates. Maximal degree in co-relation 126439. Up to 4450 conditions per place. [2023-09-01 05:28:13,056 INFO L137 encePairwiseOnDemand]: 254/266 looper letters, 472 selfloop transitions, 375 changer transitions 20/948 dead transitions. [2023-09-01 05:28:13,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 948 transitions, 22961 flow [2023-09-01 05:28:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:28:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:28:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1657 transitions. [2023-09-01 05:28:13,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5191102756892231 [2023-09-01 05:28:13,058 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1657 transitions. [2023-09-01 05:28:13,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1657 transitions. [2023-09-01 05:28:13,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:13,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1657 transitions. [2023-09-01 05:28:13,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 138.08333333333334) internal successors, (1657), 12 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,062 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,062 INFO L175 Difference]: Start difference. First operand has 280 places, 791 transitions, 18917 flow. Second operand 12 states and 1657 transitions. [2023-09-01 05:28:13,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 948 transitions, 22961 flow [2023-09-01 05:28:16,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 948 transitions, 22771 flow, removed 49 selfloop flow, removed 8 redundant places. [2023-09-01 05:28:16,066 INFO L231 Difference]: Finished difference. Result has 283 places, 806 transitions, 19972 flow [2023-09-01 05:28:16,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=18668, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=789, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19972, PETRI_PLACES=283, PETRI_TRANSITIONS=806} [2023-09-01 05:28:16,067 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 244 predicate places. [2023-09-01 05:28:16,068 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 806 transitions, 19972 flow [2023-09-01 05:28:16,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:16,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:16,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-09-01 05:28:16,068 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:16,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:16,068 INFO L85 PathProgramCache]: Analyzing trace with hash -744050276, now seen corresponding path program 1 times [2023-09-01 05:28:16,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:16,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398292177] [2023-09-01 05:28:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:16,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:16,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398292177] [2023-09-01 05:28:16,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398292177] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:16,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:16,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:28:16,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578299073] [2023-09-01 05:28:16,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:16,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:28:16,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:16,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:28:16,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:28:16,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:28:16,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 806 transitions, 19972 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:16,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:28:16,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:21,760 INFO L130 PetriNetUnfolder]: 8803/15161 cut-off events. [2023-09-01 05:28:21,761 INFO L131 PetriNetUnfolder]: For 631717/631717 co-relation queries the response was YES. [2023-09-01 05:28:21,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132789 conditions, 15161 events. 8803/15161 cut-off events. For 631717/631717 co-relation queries the response was YES. Maximal size of possible extension queue 998. Compared 120136 event pairs, 1973 based on Foata normal form. 112/14733 useless extension candidates. Maximal degree in co-relation 132270. Up to 10114 conditions per place. [2023-09-01 05:28:21,913 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 617 selfloop transitions, 295 changer transitions 3/916 dead transitions. [2023-09-01 05:28:21,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 916 transitions, 23573 flow [2023-09-01 05:28:21,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:28:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:28:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1160 transitions. [2023-09-01 05:28:21,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48454469507101083 [2023-09-01 05:28:21,915 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1160 transitions. [2023-09-01 05:28:21,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1160 transitions. [2023-09-01 05:28:21,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:21,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1160 transitions. [2023-09-01 05:28:21,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.88888888888889) internal successors, (1160), 9 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:21,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:21,919 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:21,919 INFO L175 Difference]: Start difference. First operand has 283 places, 806 transitions, 19972 flow. Second operand 9 states and 1160 transitions. [2023-09-01 05:28:21,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 916 transitions, 23573 flow [2023-09-01 05:28:25,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 916 transitions, 23050 flow, removed 109 selfloop flow, removed 9 redundant places. [2023-09-01 05:28:25,586 INFO L231 Difference]: Finished difference. Result has 286 places, 845 transitions, 21471 flow [2023-09-01 05:28:25,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=19375, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=21471, PETRI_PLACES=286, PETRI_TRANSITIONS=845} [2023-09-01 05:28:25,588 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 247 predicate places. [2023-09-01 05:28:25,588 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 845 transitions, 21471 flow [2023-09-01 05:28:25,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:25,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:25,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:25,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-09-01 05:28:25,590 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:25,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1863709713, now seen corresponding path program 1 times [2023-09-01 05:28:25,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:25,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997587116] [2023-09-01 05:28:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:25,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:25,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:25,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997587116] [2023-09-01 05:28:25,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997587116] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:25,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:25,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 05:28:25,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125595445] [2023-09-01 05:28:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:25,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:28:25,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:28:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:28:26,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 266 [2023-09-01 05:28:26,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 845 transitions, 21471 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:26,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:26,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 266 [2023-09-01 05:28:26,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:31,081 INFO L130 PetriNetUnfolder]: 8725/15034 cut-off events. [2023-09-01 05:28:31,081 INFO L131 PetriNetUnfolder]: For 640481/640481 co-relation queries the response was YES. [2023-09-01 05:28:31,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136202 conditions, 15034 events. 8725/15034 cut-off events. For 640481/640481 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 119102 event pairs, 2801 based on Foata normal form. 111/14603 useless extension candidates. Maximal degree in co-relation 135890. Up to 6834 conditions per place. [2023-09-01 05:28:31,226 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 808 selfloop transitions, 245 changer transitions 7/1061 dead transitions. [2023-09-01 05:28:31,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1061 transitions, 27100 flow [2023-09-01 05:28:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:28:31,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:28:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1201 transitions. [2023-09-01 05:28:31,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016708437761069 [2023-09-01 05:28:31,228 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1201 transitions. [2023-09-01 05:28:31,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1201 transitions. [2023-09-01 05:28:31,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:31,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1201 transitions. [2023-09-01 05:28:31,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.44444444444446) internal successors, (1201), 9 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:31,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:31,231 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:31,231 INFO L175 Difference]: Start difference. First operand has 286 places, 845 transitions, 21471 flow. Second operand 9 states and 1201 transitions. [2023-09-01 05:28:31,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1061 transitions, 27100 flow [2023-09-01 05:28:34,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1061 transitions, 26874 flow, removed 82 selfloop flow, removed 5 redundant places. [2023-09-01 05:28:34,365 INFO L231 Difference]: Finished difference. Result has 293 places, 911 transitions, 23643 flow [2023-09-01 05:28:34,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=21255, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=845, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=23643, PETRI_PLACES=293, PETRI_TRANSITIONS=911} [2023-09-01 05:28:34,366 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 254 predicate places. [2023-09-01 05:28:34,366 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 911 transitions, 23643 flow [2023-09-01 05:28:34,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:34,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:34,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:34,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-09-01 05:28:34,367 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:34,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash -246887852, now seen corresponding path program 3 times [2023-09-01 05:28:34,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:34,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422332833] [2023-09-01 05:28:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:34,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:34,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422332833] [2023-09-01 05:28:34,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422332833] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:34,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:34,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:34,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931921161] [2023-09-01 05:28:34,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:34,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:34,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:35,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:28:35,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 911 transitions, 23643 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:35,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:35,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:28:35,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:40,810 INFO L130 PetriNetUnfolder]: 8674/14984 cut-off events. [2023-09-01 05:28:40,810 INFO L131 PetriNetUnfolder]: For 626749/626749 co-relation queries the response was YES. [2023-09-01 05:28:40,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138961 conditions, 14984 events. 8674/14984 cut-off events. For 626749/626749 co-relation queries the response was YES. Maximal size of possible extension queue 1028. Compared 119373 event pairs, 3332 based on Foata normal form. 4/14446 useless extension candidates. Maximal degree in co-relation 138658. Up to 13944 conditions per place. [2023-09-01 05:28:40,980 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 774 selfloop transitions, 204 changer transitions 3/982 dead transitions. [2023-09-01 05:28:40,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 982 transitions, 26962 flow [2023-09-01 05:28:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:28:40,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:28:40,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2102 transitions. [2023-09-01 05:28:40,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46483856700574966 [2023-09-01 05:28:40,983 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2102 transitions. [2023-09-01 05:28:40,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2102 transitions. [2023-09-01 05:28:40,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:40,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2102 transitions. [2023-09-01 05:28:40,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 123.6470588235294) internal successors, (2102), 17 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:40,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:40,990 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:40,990 INFO L175 Difference]: Start difference. First operand has 293 places, 911 transitions, 23643 flow. Second operand 17 states and 2102 transitions. [2023-09-01 05:28:40,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 982 transitions, 26962 flow [2023-09-01 05:28:44,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 982 transitions, 26854 flow, removed 48 selfloop flow, removed 3 redundant places. [2023-09-01 05:28:44,021 INFO L231 Difference]: Finished difference. Result has 309 places, 920 transitions, 24230 flow [2023-09-01 05:28:44,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=23549, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24230, PETRI_PLACES=309, PETRI_TRANSITIONS=920} [2023-09-01 05:28:44,023 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 270 predicate places. [2023-09-01 05:28:44,023 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 920 transitions, 24230 flow [2023-09-01 05:28:44,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:44,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:44,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:44,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-09-01 05:28:44,024 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:44,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash -227225793, now seen corresponding path program 5 times [2023-09-01 05:28:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:44,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940531113] [2023-09-01 05:28:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:44,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:44,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940531113] [2023-09-01 05:28:44,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940531113] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:44,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:44,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:28:44,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360253010] [2023-09-01 05:28:44,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:44,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:28:44,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:44,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:28:44,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:28:44,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-09-01 05:28:44,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 920 transitions, 24230 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:44,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:44,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-09-01 05:28:44,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:49,461 INFO L130 PetriNetUnfolder]: 8172/14309 cut-off events. [2023-09-01 05:28:49,462 INFO L131 PetriNetUnfolder]: For 600332/600830 co-relation queries the response was YES. [2023-09-01 05:28:49,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132394 conditions, 14309 events. 8172/14309 cut-off events. For 600332/600830 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 115386 event pairs, 2055 based on Foata normal form. 72/13744 useless extension candidates. Maximal degree in co-relation 131917. Up to 4821 conditions per place. [2023-09-01 05:28:49,776 INFO L137 encePairwiseOnDemand]: 256/266 looper letters, 738 selfloop transitions, 261 changer transitions 6/1094 dead transitions. [2023-09-01 05:28:49,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1094 transitions, 28540 flow [2023-09-01 05:28:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:28:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:28:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2023-09-01 05:28:49,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530827067669173 [2023-09-01 05:28:49,778 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1412 transitions. [2023-09-01 05:28:49,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1412 transitions. [2023-09-01 05:28:49,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:49,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1412 transitions. [2023-09-01 05:28:49,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:49,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:49,782 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:49,783 INFO L175 Difference]: Start difference. First operand has 309 places, 920 transitions, 24230 flow. Second operand 10 states and 1412 transitions. [2023-09-01 05:28:49,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1094 transitions, 28540 flow [2023-09-01 05:28:53,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 1094 transitions, 27604 flow, removed 221 selfloop flow, removed 17 redundant places. [2023-09-01 05:28:53,160 INFO L231 Difference]: Finished difference. Result has 300 places, 907 transitions, 23601 flow [2023-09-01 05:28:53,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=22858, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23601, PETRI_PLACES=300, PETRI_TRANSITIONS=907} [2023-09-01 05:28:53,161 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 261 predicate places. [2023-09-01 05:28:53,161 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 907 transitions, 23601 flow [2023-09-01 05:28:53,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:53,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:53,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:53,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-09-01 05:28:53,162 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:53,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:53,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1639792211, now seen corresponding path program 2 times [2023-09-01 05:28:53,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:53,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528811274] [2023-09-01 05:28:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:53,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:53,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:53,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528811274] [2023-09-01 05:28:53,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528811274] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:53,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:53,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:28:53,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528849179] [2023-09-01 05:28:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:53,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:28:53,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:28:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:28:54,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:28:54,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 907 transitions, 23601 flow. Second operand has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:54,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:54,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:28:54,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:29:01,237 INFO L130 PetriNetUnfolder]: 11099/19340 cut-off events. [2023-09-01 05:29:01,238 INFO L131 PetriNetUnfolder]: For 805719/805719 co-relation queries the response was YES. [2023-09-01 05:29:01,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173696 conditions, 19340 events. 11099/19340 cut-off events. For 805719/805719 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 161572 event pairs, 4431 based on Foata normal form. 27/18649 useless extension candidates. Maximal degree in co-relation 172573. Up to 11641 conditions per place. [2023-09-01 05:29:01,469 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 932 selfloop transitions, 333 changer transitions 73/1339 dead transitions. [2023-09-01 05:29:01,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1339 transitions, 36910 flow [2023-09-01 05:29:01,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-01 05:29:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-09-01 05:29:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3031 transitions. [2023-09-01 05:29:01,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47478070175438597 [2023-09-01 05:29:01,471 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3031 transitions. [2023-09-01 05:29:01,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3031 transitions. [2023-09-01 05:29:01,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:29:01,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3031 transitions. [2023-09-01 05:29:01,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 126.29166666666667) internal successors, (3031), 24 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:01,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:01,480 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:01,480 INFO L175 Difference]: Start difference. First operand has 300 places, 907 transitions, 23601 flow. Second operand 24 states and 3031 transitions. [2023-09-01 05:29:01,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1339 transitions, 36910 flow [2023-09-01 05:29:07,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 1339 transitions, 35956 flow, removed 226 selfloop flow, removed 7 redundant places. [2023-09-01 05:29:07,140 INFO L231 Difference]: Finished difference. Result has 326 places, 982 transitions, 26104 flow [2023-09-01 05:29:07,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=23050, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=26104, PETRI_PLACES=326, PETRI_TRANSITIONS=982} [2023-09-01 05:29:07,141 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 287 predicate places. [2023-09-01 05:29:07,141 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 982 transitions, 26104 flow [2023-09-01 05:29:07,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:07,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:29:07,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:29:07,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-09-01 05:29:07,142 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:29:07,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:29:07,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1946000732, now seen corresponding path program 1 times [2023-09-01 05:29:07,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:29:07,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524233769] [2023-09-01 05:29:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:29:07,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:29:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:29:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:29:07,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:29:07,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524233769] [2023-09-01 05:29:07,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524233769] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:29:07,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:29:07,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:29:07,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524727711] [2023-09-01 05:29:07,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:29:07,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:29:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:29:07,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:29:07,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:29:07,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-09-01 05:29:07,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 982 transitions, 26104 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:07,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:29:07,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-09-01 05:29:07,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:29:15,696 INFO L130 PetriNetUnfolder]: 12170/21446 cut-off events. [2023-09-01 05:29:15,696 INFO L131 PetriNetUnfolder]: For 819801/819801 co-relation queries the response was YES. [2023-09-01 05:29:15,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187201 conditions, 21446 events. 12170/21446 cut-off events. For 819801/819801 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 184691 event pairs, 5752 based on Foata normal form. 44/20693 useless extension candidates. Maximal degree in co-relation 186428. Up to 18304 conditions per place. [2023-09-01 05:29:15,963 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 927 selfloop transitions, 189 changer transitions 106/1223 dead transitions. [2023-09-01 05:29:15,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1223 transitions, 34425 flow [2023-09-01 05:29:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:29:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:29:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1426 transitions. [2023-09-01 05:29:15,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48735475051264526 [2023-09-01 05:29:15,965 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1426 transitions. [2023-09-01 05:29:15,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1426 transitions. [2023-09-01 05:29:15,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:29:15,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1426 transitions. [2023-09-01 05:29:15,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:15,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:15,969 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:15,969 INFO L175 Difference]: Start difference. First operand has 326 places, 982 transitions, 26104 flow. Second operand 11 states and 1426 transitions. [2023-09-01 05:29:15,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1223 transitions, 34425 flow [2023-09-01 05:29:21,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 1223 transitions, 34001 flow, removed 75 selfloop flow, removed 6 redundant places. [2023-09-01 05:29:21,554 INFO L231 Difference]: Finished difference. Result has 334 places, 1022 transitions, 27630 flow [2023-09-01 05:29:21,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=25702, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=27630, PETRI_PLACES=334, PETRI_TRANSITIONS=1022} [2023-09-01 05:29:21,555 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 295 predicate places. [2023-09-01 05:29:21,555 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 1022 transitions, 27630 flow [2023-09-01 05:29:21,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:21,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:29:21,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:29:21,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-09-01 05:29:21,556 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:29:21,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:29:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash -566549549, now seen corresponding path program 1 times [2023-09-01 05:29:21,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:29:21,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327129246] [2023-09-01 05:29:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:29:21,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:29:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:29:21,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:29:21,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:29:21,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327129246] [2023-09-01 05:29:21,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327129246] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:29:21,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:29:21,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:29:21,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931421194] [2023-09-01 05:29:21,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:29:21,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:29:21,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:29:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:29:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:29:22,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:29:22,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 1022 transitions, 27630 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:22,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:29:22,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:29:22,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:29:30,460 INFO L130 PetriNetUnfolder]: 12018/21271 cut-off events. [2023-09-01 05:29:30,460 INFO L131 PetriNetUnfolder]: For 852020/852020 co-relation queries the response was YES. [2023-09-01 05:29:30,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188609 conditions, 21271 events. 12018/21271 cut-off events. For 852020/852020 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 184525 event pairs, 2635 based on Foata normal form. 232/20728 useless extension candidates. Maximal degree in co-relation 188090. Up to 10317 conditions per place. [2023-09-01 05:29:30,767 INFO L137 encePairwiseOnDemand]: 245/266 looper letters, 739 selfloop transitions, 451 changer transitions 8/1199 dead transitions. [2023-09-01 05:29:30,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1199 transitions, 32886 flow [2023-09-01 05:29:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:29:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:29:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1452 transitions. [2023-09-01 05:29:30,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49624060150375937 [2023-09-01 05:29:30,769 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1452 transitions. [2023-09-01 05:29:30,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1452 transitions. [2023-09-01 05:29:30,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:29:30,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1452 transitions. [2023-09-01 05:29:30,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:30,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:30,773 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:30,773 INFO L175 Difference]: Start difference. First operand has 334 places, 1022 transitions, 27630 flow. Second operand 11 states and 1452 transitions. [2023-09-01 05:29:30,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1199 transitions, 32886 flow [2023-09-01 05:29:37,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1199 transitions, 32745 flow, removed 31 selfloop flow, removed 4 redundant places. [2023-09-01 05:29:37,863 INFO L231 Difference]: Finished difference. Result has 346 places, 1075 transitions, 30255 flow [2023-09-01 05:29:37,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=27328, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30255, PETRI_PLACES=346, PETRI_TRANSITIONS=1075} [2023-09-01 05:29:37,864 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 307 predicate places. [2023-09-01 05:29:37,864 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 1075 transitions, 30255 flow [2023-09-01 05:29:37,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:37,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:29:37,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:29:37,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-09-01 05:29:37,865 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:29:37,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:29:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash -483154063, now seen corresponding path program 3 times [2023-09-01 05:29:37,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:29:37,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558617668] [2023-09-01 05:29:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:29:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:29:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:29:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:29:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:29:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558617668] [2023-09-01 05:29:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558617668] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:29:38,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:29:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:29:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179839394] [2023-09-01 05:29:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:29:38,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:29:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:29:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:29:38,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:29:38,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-09-01 05:29:38,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 1075 transitions, 30255 flow. Second operand has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:38,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:29:38,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-09-01 05:29:38,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:29:48,478 INFO L130 PetriNetUnfolder]: 11993/21278 cut-off events. [2023-09-01 05:29:48,479 INFO L131 PetriNetUnfolder]: For 923717/923717 co-relation queries the response was YES. [2023-09-01 05:29:48,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200053 conditions, 21278 events. 11993/21278 cut-off events. For 923717/923717 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 185028 event pairs, 5611 based on Foata normal form. 4/20507 useless extension candidates. Maximal degree in co-relation 197942. Up to 19733 conditions per place. [2023-09-01 05:29:48,760 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 808 selfloop transitions, 407 changer transitions 9/1225 dead transitions. [2023-09-01 05:29:48,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1225 transitions, 36219 flow [2023-09-01 05:29:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-01 05:29:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-09-01 05:29:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3776 transitions. [2023-09-01 05:29:48,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45791899102595196 [2023-09-01 05:29:48,764 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3776 transitions. [2023-09-01 05:29:48,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3776 transitions. [2023-09-01 05:29:48,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:29:48,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3776 transitions. [2023-09-01 05:29:48,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 121.80645161290323) internal successors, (3776), 31 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:48,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 266.0) internal successors, (8512), 32 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:48,772 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 266.0) internal successors, (8512), 32 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:48,772 INFO L175 Difference]: Start difference. First operand has 346 places, 1075 transitions, 30255 flow. Second operand 31 states and 3776 transitions. [2023-09-01 05:29:48,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1225 transitions, 36219 flow [2023-09-01 05:29:56,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1225 transitions, 35997 flow, removed 75 selfloop flow, removed 4 redundant places. [2023-09-01 05:29:56,619 INFO L231 Difference]: Finished difference. Result has 378 places, 1124 transitions, 32721 flow [2023-09-01 05:29:56,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=30061, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=32721, PETRI_PLACES=378, PETRI_TRANSITIONS=1124} [2023-09-01 05:29:56,620 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 339 predicate places. [2023-09-01 05:29:56,620 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1124 transitions, 32721 flow [2023-09-01 05:29:56,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:56,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:29:56,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:29:56,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-09-01 05:29:56,621 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:29:56,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:29:56,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1909203609, now seen corresponding path program 2 times [2023-09-01 05:29:56,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:29:56,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148097930] [2023-09-01 05:29:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:29:56,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:29:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:29:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:29:56,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:29:56,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148097930] [2023-09-01 05:29:56,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148097930] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:29:56,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:29:56,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 05:29:56,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120405018] [2023-09-01 05:29:56,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:29:56,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:29:56,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:29:56,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:29:56,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:29:57,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 266 [2023-09-01 05:29:57,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1124 transitions, 32721 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:29:57,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:29:57,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 266 [2023-09-01 05:29:57,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:30:05,872 INFO L130 PetriNetUnfolder]: 11734/20807 cut-off events. [2023-09-01 05:30:05,872 INFO L131 PetriNetUnfolder]: For 923675/923675 co-relation queries the response was YES. [2023-09-01 05:30:06,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194578 conditions, 20807 events. 11734/20807 cut-off events. For 923675/923675 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 179364 event pairs, 3113 based on Foata normal form. 111/20161 useless extension candidates. Maximal degree in co-relation 194005. Up to 8055 conditions per place. [2023-09-01 05:30:06,170 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 788 selfloop transitions, 455 changer transitions 6/1250 dead transitions. [2023-09-01 05:30:06,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1250 transitions, 36946 flow [2023-09-01 05:30:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:30:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:30:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1341 transitions. [2023-09-01 05:30:06,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041353383458647 [2023-09-01 05:30:06,172 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1341 transitions. [2023-09-01 05:30:06,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1341 transitions. [2023-09-01 05:30:06,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:30:06,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1341 transitions. [2023-09-01 05:30:06,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.1) internal successors, (1341), 10 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:06,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:06,176 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:06,176 INFO L175 Difference]: Start difference. First operand has 378 places, 1124 transitions, 32721 flow. Second operand 10 states and 1341 transitions. [2023-09-01 05:30:06,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1250 transitions, 36946 flow [2023-09-01 05:30:15,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1250 transitions, 35478 flow, removed 333 selfloop flow, removed 15 redundant places. [2023-09-01 05:30:15,385 INFO L231 Difference]: Finished difference. Result has 375 places, 1131 transitions, 32782 flow [2023-09-01 05:30:15,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=30815, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32782, PETRI_PLACES=375, PETRI_TRANSITIONS=1131} [2023-09-01 05:30:15,386 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 336 predicate places. [2023-09-01 05:30:15,386 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 1131 transitions, 32782 flow [2023-09-01 05:30:15,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:15,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:30:15,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:30:15,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-09-01 05:30:15,387 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:30:15,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:30:15,387 INFO L85 PathProgramCache]: Analyzing trace with hash -436242410, now seen corresponding path program 2 times [2023-09-01 05:30:15,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:30:15,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566417167] [2023-09-01 05:30:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:30:15,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:30:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:30:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:30:15,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:30:15,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566417167] [2023-09-01 05:30:15,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566417167] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:30:15,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:30:15,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:30:15,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273619436] [2023-09-01 05:30:15,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:30:15,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:30:15,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:30:15,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:30:15,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:30:16,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:30:16,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1131 transitions, 32782 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:16,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:30:16,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:30:16,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:30:26,526 INFO L130 PetriNetUnfolder]: 12748/22865 cut-off events. [2023-09-01 05:30:26,526 INFO L131 PetriNetUnfolder]: For 960216/960216 co-relation queries the response was YES. [2023-09-01 05:30:26,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212989 conditions, 22865 events. 12748/22865 cut-off events. For 960216/960216 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 203069 event pairs, 6308 based on Foata normal form. 64/22094 useless extension candidates. Maximal degree in co-relation 212579. Up to 20037 conditions per place. [2023-09-01 05:30:26,876 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1121 selfloop transitions, 163 changer transitions 86/1371 dead transitions. [2023-09-01 05:30:26,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1371 transitions, 41581 flow [2023-09-01 05:30:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:30:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:30:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2005 transitions. [2023-09-01 05:30:26,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710996240601504 [2023-09-01 05:30:26,879 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2005 transitions. [2023-09-01 05:30:26,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2005 transitions. [2023-09-01 05:30:26,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:30:26,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2005 transitions. [2023-09-01 05:30:26,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.3125) internal successors, (2005), 16 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:26,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:26,884 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:26,884 INFO L175 Difference]: Start difference. First operand has 375 places, 1131 transitions, 32782 flow. Second operand 16 states and 2005 transitions. [2023-09-01 05:30:26,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1371 transitions, 41581 flow [2023-09-01 05:30:35,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1371 transitions, 41351 flow, removed 83 selfloop flow, removed 4 redundant places. [2023-09-01 05:30:35,516 INFO L231 Difference]: Finished difference. Result has 391 places, 1184 transitions, 34743 flow [2023-09-01 05:30:35,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=32562, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=34743, PETRI_PLACES=391, PETRI_TRANSITIONS=1184} [2023-09-01 05:30:35,517 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 352 predicate places. [2023-09-01 05:30:35,517 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 1184 transitions, 34743 flow [2023-09-01 05:30:35,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:35,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:30:35,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:30:35,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-09-01 05:30:35,518 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:30:35,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:30:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash 217238217, now seen corresponding path program 4 times [2023-09-01 05:30:35,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:30:35,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128110212] [2023-09-01 05:30:35,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:30:35,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:30:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:30:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:30:35,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:30:35,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128110212] [2023-09-01 05:30:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128110212] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:30:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:30:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:30:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135197104] [2023-09-01 05:30:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:30:35,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:30:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:30:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:30:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:30:36,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:30:36,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 1184 transitions, 34743 flow. Second operand has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:36,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:30:36,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:30:36,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:30:46,569 INFO L130 PetriNetUnfolder]: 12404/22269 cut-off events. [2023-09-01 05:30:46,569 INFO L131 PetriNetUnfolder]: For 943008/943008 co-relation queries the response was YES. [2023-09-01 05:30:46,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211195 conditions, 22269 events. 12404/22269 cut-off events. For 943008/943008 co-relation queries the response was YES. Maximal size of possible extension queue 1495. Compared 197902 event pairs, 6041 based on Foata normal form. 29/21506 useless extension candidates. Maximal degree in co-relation 209076. Up to 19210 conditions per place. [2023-09-01 05:30:46,934 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 959 selfloop transitions, 425 changer transitions 42/1427 dead transitions. [2023-09-01 05:30:46,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1427 transitions, 43614 flow [2023-09-01 05:30:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-09-01 05:30:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-09-01 05:30:46,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2535 transitions. [2023-09-01 05:30:46,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47650375939849626 [2023-09-01 05:30:46,936 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2535 transitions. [2023-09-01 05:30:46,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2535 transitions. [2023-09-01 05:30:46,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:30:46,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2535 transitions. [2023-09-01 05:30:46,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 126.75) internal successors, (2535), 20 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:46,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 266.0) internal successors, (5586), 21 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:46,943 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 266.0) internal successors, (5586), 21 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:46,943 INFO L175 Difference]: Start difference. First operand has 391 places, 1184 transitions, 34743 flow. Second operand 20 states and 2535 transitions. [2023-09-01 05:30:46,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1427 transitions, 43614 flow [2023-09-01 05:30:54,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 1427 transitions, 43465 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-09-01 05:30:54,258 INFO L231 Difference]: Finished difference. Result has 407 places, 1250 transitions, 37960 flow [2023-09-01 05:30:54,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=34601, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37960, PETRI_PLACES=407, PETRI_TRANSITIONS=1250} [2023-09-01 05:30:54,259 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 368 predicate places. [2023-09-01 05:30:54,259 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 1250 transitions, 37960 flow [2023-09-01 05:30:54,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:54,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:30:54,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:30:54,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-09-01 05:30:54,260 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:30:54,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:30:54,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1144596435, now seen corresponding path program 5 times [2023-09-01 05:30:54,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:30:54,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760298625] [2023-09-01 05:30:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:30:54,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:30:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:30:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:30:54,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:30:54,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760298625] [2023-09-01 05:30:54,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760298625] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:30:54,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:30:54,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 05:30:54,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135347018] [2023-09-01 05:30:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:30:54,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 05:30:54,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:30:54,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 05:30:54,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-09-01 05:30:55,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-09-01 05:30:55,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1250 transitions, 37960 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:30:55,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:30:55,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-09-01 05:30:55,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:31:05,766 INFO L130 PetriNetUnfolder]: 12316/22166 cut-off events. [2023-09-01 05:31:05,766 INFO L131 PetriNetUnfolder]: For 963716/963716 co-relation queries the response was YES. [2023-09-01 05:31:06,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212013 conditions, 22166 events. 12316/22166 cut-off events. For 963716/963716 co-relation queries the response was YES. Maximal size of possible extension queue 1475. Compared 197229 event pairs, 6532 based on Foata normal form. 47/21431 useless extension candidates. Maximal degree in co-relation 211468. Up to 20836 conditions per place. [2023-09-01 05:31:06,124 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 952 selfloop transitions, 368 changer transitions 51/1372 dead transitions. [2023-09-01 05:31:06,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1372 transitions, 43971 flow [2023-09-01 05:31:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:31:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:31:06,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2108 transitions. [2023-09-01 05:31:06,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46616541353383456 [2023-09-01 05:31:06,126 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2108 transitions. [2023-09-01 05:31:06,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2108 transitions. [2023-09-01 05:31:06,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:31:06,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2108 transitions. [2023-09-01 05:31:06,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:06,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:06,132 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:06,132 INFO L175 Difference]: Start difference. First operand has 407 places, 1250 transitions, 37960 flow. Second operand 17 states and 2108 transitions. [2023-09-01 05:31:06,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1372 transitions, 43971 flow [2023-09-01 05:31:15,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1372 transitions, 43656 flow, removed 145 selfloop flow, removed 5 redundant places. [2023-09-01 05:31:15,034 INFO L231 Difference]: Finished difference. Result has 424 places, 1260 transitions, 39065 flow [2023-09-01 05:31:15,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=37661, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=349, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=895, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=39065, PETRI_PLACES=424, PETRI_TRANSITIONS=1260} [2023-09-01 05:31:15,035 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 385 predicate places. [2023-09-01 05:31:15,035 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 1260 transitions, 39065 flow [2023-09-01 05:31:15,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:15,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:31:15,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:31:15,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-09-01 05:31:15,036 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:31:15,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:31:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2105968361, now seen corresponding path program 2 times [2023-09-01 05:31:15,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:31:15,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382405569] [2023-09-01 05:31:15,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:31:15,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:31:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:31:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:31:15,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:31:15,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382405569] [2023-09-01 05:31:15,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382405569] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:31:15,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:31:15,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:31:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165255379] [2023-09-01 05:31:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:31:15,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:31:15,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:31:15,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:31:15,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:31:15,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:31:15,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1260 transitions, 39065 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:15,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:31:15,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:31:15,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:31:26,467 INFO L130 PetriNetUnfolder]: 12358/22244 cut-off events. [2023-09-01 05:31:26,467 INFO L131 PetriNetUnfolder]: For 1013553/1013553 co-relation queries the response was YES. [2023-09-01 05:31:26,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216665 conditions, 22244 events. 12358/22244 cut-off events. For 1013553/1013553 co-relation queries the response was YES. Maximal size of possible extension queue 1488. Compared 197872 event pairs, 4761 based on Foata normal form. 48/21504 useless extension candidates. Maximal degree in co-relation 216233. Up to 11709 conditions per place. [2023-09-01 05:31:26,806 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 1115 selfloop transitions, 272 changer transitions 1/1389 dead transitions. [2023-09-01 05:31:26,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1389 transitions, 44143 flow [2023-09-01 05:31:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:31:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:31:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1567 transitions. [2023-09-01 05:31:26,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909147869674185 [2023-09-01 05:31:26,808 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1567 transitions. [2023-09-01 05:31:26,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1567 transitions. [2023-09-01 05:31:26,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:31:26,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1567 transitions. [2023-09-01 05:31:26,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.58333333333334) internal successors, (1567), 12 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:26,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:26,812 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:26,812 INFO L175 Difference]: Start difference. First operand has 424 places, 1260 transitions, 39065 flow. Second operand 12 states and 1567 transitions. [2023-09-01 05:31:26,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 1389 transitions, 44143 flow [2023-09-01 05:31:35,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1389 transitions, 43656 flow, removed 73 selfloop flow, removed 10 redundant places. [2023-09-01 05:31:35,425 INFO L231 Difference]: Finished difference. Result has 431 places, 1299 transitions, 40839 flow [2023-09-01 05:31:35,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=38610, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1009, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=40839, PETRI_PLACES=431, PETRI_TRANSITIONS=1299} [2023-09-01 05:31:35,427 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 392 predicate places. [2023-09-01 05:31:35,427 INFO L495 AbstractCegarLoop]: Abstraction has has 431 places, 1299 transitions, 40839 flow [2023-09-01 05:31:35,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:35,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:31:35,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:31:35,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-09-01 05:31:35,427 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:31:35,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:31:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2104786330, now seen corresponding path program 1 times [2023-09-01 05:31:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:31:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740230041] [2023-09-01 05:31:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:31:35,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:31:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:31:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:31:35,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:31:35,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740230041] [2023-09-01 05:31:35,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740230041] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:31:35,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:31:35,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:31:35,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563320363] [2023-09-01 05:31:35,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:31:35,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:31:35,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:31:35,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:31:35,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:31:35,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:31:35,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 1299 transitions, 40839 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:35,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:31:35,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:31:35,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:31:46,572 INFO L130 PetriNetUnfolder]: 12456/22414 cut-off events. [2023-09-01 05:31:46,572 INFO L131 PetriNetUnfolder]: For 1072337/1072337 co-relation queries the response was YES. [2023-09-01 05:31:46,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222243 conditions, 22414 events. 12456/22414 cut-off events. For 1072337/1072337 co-relation queries the response was YES. Maximal size of possible extension queue 1447. Compared 199300 event pairs, 4875 based on Foata normal form. 62/21682 useless extension candidates. Maximal degree in co-relation 220385. Up to 11709 conditions per place. [2023-09-01 05:31:46,929 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 1112 selfloop transitions, 283 changer transitions 1/1397 dead transitions. [2023-09-01 05:31:46,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 1397 transitions, 45435 flow [2023-09-01 05:31:46,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:31:46,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:31:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1182 transitions. [2023-09-01 05:31:46,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49373433583959897 [2023-09-01 05:31:46,931 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1182 transitions. [2023-09-01 05:31:46,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1182 transitions. [2023-09-01 05:31:46,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:31:46,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1182 transitions. [2023-09-01 05:31:46,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 131.33333333333334) internal successors, (1182), 9 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:46,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:46,935 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:46,935 INFO L175 Difference]: Start difference. First operand has 431 places, 1299 transitions, 40839 flow. Second operand 9 states and 1182 transitions. [2023-09-01 05:31:46,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 1397 transitions, 45435 flow [2023-09-01 05:31:56,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1397 transitions, 45046 flow, removed 62 selfloop flow, removed 4 redundant places. [2023-09-01 05:31:56,170 INFO L231 Difference]: Finished difference. Result has 438 places, 1319 transitions, 42229 flow [2023-09-01 05:31:56,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=40468, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1026, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=42229, PETRI_PLACES=438, PETRI_TRANSITIONS=1319} [2023-09-01 05:31:56,171 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 399 predicate places. [2023-09-01 05:31:56,171 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 1319 transitions, 42229 flow [2023-09-01 05:31:56,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:56,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:31:56,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:31:56,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-09-01 05:31:56,172 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:31:56,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:31:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1328779596, now seen corresponding path program 3 times [2023-09-01 05:31:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:31:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954920592] [2023-09-01 05:31:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:31:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:31:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:31:56,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:31:56,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:31:56,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954920592] [2023-09-01 05:31:56,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954920592] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:31:56,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:31:56,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:31:56,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935936114] [2023-09-01 05:31:56,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:31:56,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:31:56,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:31:56,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:31:56,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:31:56,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:31:56,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1319 transitions, 42229 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:31:56,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:31:56,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:31:56,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:32:08,843 INFO L130 PetriNetUnfolder]: 13401/24196 cut-off events. [2023-09-01 05:32:08,844 INFO L131 PetriNetUnfolder]: For 1159368/1159368 co-relation queries the response was YES. [2023-09-01 05:32:09,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240893 conditions, 24196 events. 13401/24196 cut-off events. For 1159368/1159368 co-relation queries the response was YES. Maximal size of possible extension queue 1593. Compared 218656 event pairs, 6917 based on Foata normal form. 44/23376 useless extension candidates. Maximal degree in co-relation 239119. Up to 21688 conditions per place. [2023-09-01 05:32:09,204 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1278 selfloop transitions, 156 changer transitions 68/1503 dead transitions. [2023-09-01 05:32:09,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1503 transitions, 49666 flow [2023-09-01 05:32:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 05:32:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 05:32:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1765 transitions. [2023-09-01 05:32:09,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47395273899033297 [2023-09-01 05:32:09,206 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1765 transitions. [2023-09-01 05:32:09,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1765 transitions. [2023-09-01 05:32:09,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:32:09,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1765 transitions. [2023-09-01 05:32:09,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 126.07142857142857) internal successors, (1765), 14 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:09,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:09,210 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:09,211 INFO L175 Difference]: Start difference. First operand has 438 places, 1319 transitions, 42229 flow. Second operand 14 states and 1765 transitions. [2023-09-01 05:32:09,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1503 transitions, 49666 flow [2023-09-01 05:32:19,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1503 transitions, 49264 flow, removed 43 selfloop flow, removed 5 redundant places. [2023-09-01 05:32:19,332 INFO L231 Difference]: Finished difference. Result has 450 places, 1334 transitions, 42863 flow [2023-09-01 05:32:19,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=41878, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=42863, PETRI_PLACES=450, PETRI_TRANSITIONS=1334} [2023-09-01 05:32:19,333 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 411 predicate places. [2023-09-01 05:32:19,333 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 1334 transitions, 42863 flow [2023-09-01 05:32:19,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:19,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:32:19,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:32:19,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-09-01 05:32:19,334 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:32:19,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:32:19,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1930860520, now seen corresponding path program 2 times [2023-09-01 05:32:19,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:32:19,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664377393] [2023-09-01 05:32:19,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:32:19,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:32:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:32:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:32:19,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:32:19,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664377393] [2023-09-01 05:32:19,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664377393] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:32:19,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:32:19,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:32:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480694585] [2023-09-01 05:32:19,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:32:19,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:32:19,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:32:19,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:32:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:32:19,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:32:19,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1334 transitions, 42863 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:19,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:32:19,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:32:19,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:32:32,698 INFO L130 PetriNetUnfolder]: 14063/25732 cut-off events. [2023-09-01 05:32:32,698 INFO L131 PetriNetUnfolder]: For 1292758/1292758 co-relation queries the response was YES. [2023-09-01 05:32:33,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256399 conditions, 25732 events. 14063/25732 cut-off events. For 1292758/1292758 co-relation queries the response was YES. Maximal size of possible extension queue 1732. Compared 239471 event pairs, 4651 based on Foata normal form. 254/25115 useless extension candidates. Maximal degree in co-relation 253874. Up to 12613 conditions per place. [2023-09-01 05:32:33,386 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1080 selfloop transitions, 430 changer transitions 26/1537 dead transitions. [2023-09-01 05:32:33,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 1537 transitions, 51111 flow [2023-09-01 05:32:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:32:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:32:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1328 transitions. [2023-09-01 05:32:33,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4992481203007519 [2023-09-01 05:32:33,392 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1328 transitions. [2023-09-01 05:32:33,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1328 transitions. [2023-09-01 05:32:33,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:32:33,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1328 transitions. [2023-09-01 05:32:33,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.8) internal successors, (1328), 10 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:33,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:33,396 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:33,396 INFO L175 Difference]: Start difference. First operand has 450 places, 1334 transitions, 42863 flow. Second operand 10 states and 1328 transitions. [2023-09-01 05:32:33,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 1537 transitions, 51111 flow [2023-09-01 05:32:46,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1537 transitions, 50962 flow, removed 48 selfloop flow, removed 6 redundant places. [2023-09-01 05:32:46,707 INFO L231 Difference]: Finished difference. Result has 457 places, 1395 transitions, 46242 flow [2023-09-01 05:32:46,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=42457, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=46242, PETRI_PLACES=457, PETRI_TRANSITIONS=1395} [2023-09-01 05:32:46,708 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 418 predicate places. [2023-09-01 05:32:46,708 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 1395 transitions, 46242 flow [2023-09-01 05:32:46,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:46,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:32:46,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:32:46,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-09-01 05:32:46,709 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:32:46,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:32:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash 936413681, now seen corresponding path program 6 times [2023-09-01 05:32:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:32:46,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878775090] [2023-09-01 05:32:46,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:32:46,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:32:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:32:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:32:47,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:32:47,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878775090] [2023-09-01 05:32:47,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878775090] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:32:47,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:32:47,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 05:32:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908259224] [2023-09-01 05:32:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:32:47,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 05:32:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:32:47,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 05:32:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-09-01 05:32:47,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-09-01 05:32:47,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 1395 transitions, 46242 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:32:47,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:32:47,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-09-01 05:32:47,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:33:01,438 INFO L130 PetriNetUnfolder]: 13874/25433 cut-off events. [2023-09-01 05:33:01,438 INFO L131 PetriNetUnfolder]: For 1321016/1321016 co-relation queries the response was YES. [2023-09-01 05:33:01,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261012 conditions, 25433 events. 13874/25433 cut-off events. For 1321016/1321016 co-relation queries the response was YES. Maximal size of possible extension queue 1700. Compared 236271 event pairs, 7048 based on Foata normal form. 8/24576 useless extension candidates. Maximal degree in co-relation 258927. Up to 24014 conditions per place. [2023-09-01 05:33:01,876 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1073 selfloop transitions, 400 changer transitions 14/1488 dead transitions. [2023-09-01 05:33:01,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1488 transitions, 50913 flow [2023-09-01 05:33:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-01 05:33:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-09-01 05:33:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2693 transitions. [2023-09-01 05:33:01,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601845522898155 [2023-09-01 05:33:01,880 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2693 transitions. [2023-09-01 05:33:01,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2693 transitions. [2023-09-01 05:33:01,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:33:01,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2693 transitions. [2023-09-01 05:33:01,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 122.4090909090909) internal successors, (2693), 22 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:01,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:01,886 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:01,887 INFO L175 Difference]: Start difference. First operand has 457 places, 1395 transitions, 46242 flow. Second operand 22 states and 2693 transitions. [2023-09-01 05:33:01,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1488 transitions, 50913 flow [2023-09-01 05:33:14,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1488 transitions, 50733 flow, removed 46 selfloop flow, removed 7 redundant places. [2023-09-01 05:33:14,341 INFO L231 Difference]: Finished difference. Result has 472 places, 1393 transitions, 46856 flow [2023-09-01 05:33:14,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=45983, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=46856, PETRI_PLACES=472, PETRI_TRANSITIONS=1393} [2023-09-01 05:33:14,343 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 433 predicate places. [2023-09-01 05:33:14,343 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 1393 transitions, 46856 flow [2023-09-01 05:33:14,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:14,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:33:14,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:33:14,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-09-01 05:33:14,344 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:33:14,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:33:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1707372397, now seen corresponding path program 6 times [2023-09-01 05:33:14,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:33:14,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076244411] [2023-09-01 05:33:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:33:14,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:33:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:33:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:33:14,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:33:14,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076244411] [2023-09-01 05:33:14,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076244411] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:33:14,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:33:14,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:33:14,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62355513] [2023-09-01 05:33:14,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:33:14,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:33:14,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:33:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:33:14,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:33:14,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:33:14,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1393 transitions, 46856 flow. Second operand has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:14,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:33:14,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:33:14,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:33:29,266 INFO L130 PetriNetUnfolder]: 14134/25908 cut-off events. [2023-09-01 05:33:29,266 INFO L131 PetriNetUnfolder]: For 1326718/1326718 co-relation queries the response was YES. [2023-09-01 05:33:29,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265060 conditions, 25908 events. 14134/25908 cut-off events. For 1326718/1326718 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 240651 event pairs, 3867 based on Foata normal form. 22/25051 useless extension candidates. Maximal degree in co-relation 263315. Up to 10348 conditions per place. [2023-09-01 05:33:29,800 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 797 selfloop transitions, 760 changer transitions 20/1578 dead transitions. [2023-09-01 05:33:29,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1578 transitions, 54252 flow [2023-09-01 05:33:29,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 05:33:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 05:33:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1830 transitions. [2023-09-01 05:33:29,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49140708915145004 [2023-09-01 05:33:29,802 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1830 transitions. [2023-09-01 05:33:29,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1830 transitions. [2023-09-01 05:33:29,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:33:29,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1830 transitions. [2023-09-01 05:33:29,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.71428571428572) internal successors, (1830), 14 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:29,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:29,807 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:29,807 INFO L175 Difference]: Start difference. First operand has 472 places, 1393 transitions, 46856 flow. Second operand 14 states and 1830 transitions. [2023-09-01 05:33:29,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1578 transitions, 54252 flow [2023-09-01 05:33:43,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1578 transitions, 53498 flow, removed 18 selfloop flow, removed 19 redundant places. [2023-09-01 05:33:43,946 INFO L231 Difference]: Finished difference. Result has 468 places, 1407 transitions, 48885 flow [2023-09-01 05:33:43,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=45987, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=743, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=48885, PETRI_PLACES=468, PETRI_TRANSITIONS=1407} [2023-09-01 05:33:43,948 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 429 predicate places. [2023-09-01 05:33:43,948 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1407 transitions, 48885 flow [2023-09-01 05:33:43,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:43,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:33:43,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:33:43,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-09-01 05:33:43,949 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:33:43,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:33:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1707372398, now seen corresponding path program 4 times [2023-09-01 05:33:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:33:43,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461217932] [2023-09-01 05:33:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:33:43,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:33:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:33:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:33:44,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:33:44,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461217932] [2023-09-01 05:33:44,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461217932] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:33:44,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:33:44,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:33:44,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359231512] [2023-09-01 05:33:44,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:33:44,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:33:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:33:44,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:33:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:33:44,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:33:44,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1407 transitions, 48885 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:44,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:33:44,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:33:44,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:33:59,125 INFO L130 PetriNetUnfolder]: 13992/25661 cut-off events. [2023-09-01 05:33:59,125 INFO L131 PetriNetUnfolder]: For 1421814/1421814 co-relation queries the response was YES. [2023-09-01 05:33:59,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270133 conditions, 25661 events. 13992/25661 cut-off events. For 1421814/1421814 co-relation queries the response was YES. Maximal size of possible extension queue 1709. Compared 239237 event pairs, 7146 based on Foata normal form. 2/24796 useless extension candidates. Maximal degree in co-relation 268098. Up to 24647 conditions per place. [2023-09-01 05:33:59,622 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 1223 selfloop transitions, 240 changer transitions 6/1470 dead transitions. [2023-09-01 05:33:59,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1470 transitions, 53086 flow [2023-09-01 05:33:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:33:59,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:33:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1976 transitions. [2023-09-01 05:33:59,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2023-09-01 05:33:59,624 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1976 transitions. [2023-09-01 05:33:59,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1976 transitions. [2023-09-01 05:33:59,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:33:59,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1976 transitions. [2023-09-01 05:33:59,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.5) internal successors, (1976), 16 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:59,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:59,628 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:33:59,628 INFO L175 Difference]: Start difference. First operand has 468 places, 1407 transitions, 48885 flow. Second operand 16 states and 1976 transitions. [2023-09-01 05:33:59,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1470 transitions, 53086 flow [2023-09-01 05:34:13,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1470 transitions, 52355 flow, removed 62 selfloop flow, removed 9 redundant places. [2023-09-01 05:34:14,031 INFO L231 Difference]: Finished difference. Result has 475 places, 1407 transitions, 48688 flow [2023-09-01 05:34:14,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=48170, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=48688, PETRI_PLACES=475, PETRI_TRANSITIONS=1407} [2023-09-01 05:34:14,033 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 436 predicate places. [2023-09-01 05:34:14,033 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 1407 transitions, 48688 flow [2023-09-01 05:34:14,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:14,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:34:14,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:34:14,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-09-01 05:34:14,034 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:34:14,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:34:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash -469325302, now seen corresponding path program 5 times [2023-09-01 05:34:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:34:14,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896126712] [2023-09-01 05:34:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:34:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:34:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:34:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:34:14,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:34:14,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896126712] [2023-09-01 05:34:14,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896126712] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:34:14,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:34:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:34:14,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924028654] [2023-09-01 05:34:14,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:34:14,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:34:14,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:34:14,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:34:14,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:34:14,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:34:14,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1407 transitions, 48688 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:14,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:34:14,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:34:14,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:34:30,259 INFO L130 PetriNetUnfolder]: 15078/27863 cut-off events. [2023-09-01 05:34:30,260 INFO L131 PetriNetUnfolder]: For 1459578/1459578 co-relation queries the response was YES. [2023-09-01 05:34:30,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286396 conditions, 27863 events. 15078/27863 cut-off events. For 1459578/1459578 co-relation queries the response was YES. Maximal size of possible extension queue 1877. Compared 264710 event pairs, 8094 based on Foata normal form. 65/26991 useless extension candidates. Maximal degree in co-relation 284646. Up to 24513 conditions per place. [2023-09-01 05:34:30,844 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1376 selfloop transitions, 155 changer transitions 59/1591 dead transitions. [2023-09-01 05:34:30,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1591 transitions, 56720 flow [2023-09-01 05:34:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:34:30,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:34:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1523 transitions. [2023-09-01 05:34:30,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47713032581453635 [2023-09-01 05:34:30,846 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1523 transitions. [2023-09-01 05:34:30,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1523 transitions. [2023-09-01 05:34:30,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:34:30,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1523 transitions. [2023-09-01 05:34:30,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 126.91666666666667) internal successors, (1523), 12 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:30,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:30,849 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:30,849 INFO L175 Difference]: Start difference. First operand has 475 places, 1407 transitions, 48688 flow. Second operand 12 states and 1523 transitions. [2023-09-01 05:34:30,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1591 transitions, 56720 flow [2023-09-01 05:34:45,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1591 transitions, 56376 flow, removed 1 selfloop flow, removed 14 redundant places. [2023-09-01 05:34:45,950 INFO L231 Difference]: Finished difference. Result has 476 places, 1434 transitions, 49826 flow [2023-09-01 05:34:45,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=48360, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=49826, PETRI_PLACES=476, PETRI_TRANSITIONS=1434} [2023-09-01 05:34:45,951 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 437 predicate places. [2023-09-01 05:34:45,952 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 1434 transitions, 49826 flow [2023-09-01 05:34:45,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:45,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:34:45,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:34:45,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-09-01 05:34:45,952 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:34:45,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:34:45,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1863309998, now seen corresponding path program 6 times [2023-09-01 05:34:45,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:34:45,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111759007] [2023-09-01 05:34:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:34:45,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:34:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:34:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:34:46,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:34:46,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111759007] [2023-09-01 05:34:46,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111759007] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:34:46,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:34:46,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:34:46,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820386259] [2023-09-01 05:34:46,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:34:46,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:34:46,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:34:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:34:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:34:46,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:34:46,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 1434 transitions, 49826 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:34:46,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:34:46,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:34:46,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:35:03,488 INFO L130 PetriNetUnfolder]: 15692/29156 cut-off events. [2023-09-01 05:35:03,488 INFO L131 PetriNetUnfolder]: For 1539660/1539660 co-relation queries the response was YES. [2023-09-01 05:35:04,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299147 conditions, 29156 events. 15692/29156 cut-off events. For 1539660/1539660 co-relation queries the response was YES. Maximal size of possible extension queue 1937. Compared 280853 event pairs, 8590 based on Foata normal form. 44/28208 useless extension candidates. Maximal degree in co-relation 297117. Up to 26325 conditions per place. [2023-09-01 05:35:04,349 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1363 selfloop transitions, 179 changer transitions 39/1582 dead transitions. [2023-09-01 05:35:04,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1582 transitions, 56923 flow [2023-09-01 05:35:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:35:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:35:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2002 transitions. [2023-09-01 05:35:04,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47039473684210525 [2023-09-01 05:35:04,351 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2002 transitions. [2023-09-01 05:35:04,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2002 transitions. [2023-09-01 05:35:04,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:35:04,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2002 transitions. [2023-09-01 05:35:04,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.125) internal successors, (2002), 16 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:04,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:04,356 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:04,356 INFO L175 Difference]: Start difference. First operand has 476 places, 1434 transitions, 49826 flow. Second operand 16 states and 2002 transitions. [2023-09-01 05:35:04,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1582 transitions, 56923 flow [2023-09-01 05:35:20,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1582 transitions, 56822 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-09-01 05:35:20,877 INFO L231 Difference]: Finished difference. Result has 490 places, 1456 transitions, 51095 flow [2023-09-01 05:35:20,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=49716, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=51095, PETRI_PLACES=490, PETRI_TRANSITIONS=1456} [2023-09-01 05:35:20,878 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 451 predicate places. [2023-09-01 05:35:20,878 INFO L495 AbstractCegarLoop]: Abstraction has has 490 places, 1456 transitions, 51095 flow [2023-09-01 05:35:20,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:20,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:35:20,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:35:20,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-09-01 05:35:20,879 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:35:20,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:35:20,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2121491208, now seen corresponding path program 3 times [2023-09-01 05:35:20,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:35:20,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501796790] [2023-09-01 05:35:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:35:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:35:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:35:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:35:21,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:35:21,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501796790] [2023-09-01 05:35:21,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501796790] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:35:21,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:35:21,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:35:21,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902838051] [2023-09-01 05:35:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:35:21,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:35:21,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:35:21,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:35:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:35:21,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:35:21,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 1456 transitions, 51095 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:21,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:35:21,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:35:21,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:35:39,127 INFO L130 PetriNetUnfolder]: 16357/30639 cut-off events. [2023-09-01 05:35:39,127 INFO L131 PetriNetUnfolder]: For 1679030/1679030 co-relation queries the response was YES. [2023-09-01 05:35:39,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315072 conditions, 30639 events. 16357/30639 cut-off events. For 1679030/1679030 co-relation queries the response was YES. Maximal size of possible extension queue 2058. Compared 299893 event pairs, 6920 based on Foata normal form. 264/29882 useless extension candidates. Maximal degree in co-relation 312983. Up to 12987 conditions per place. [2023-09-01 05:35:39,938 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1396 selfloop transitions, 244 changer transitions 10/1651 dead transitions. [2023-09-01 05:35:39,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1651 transitions, 58998 flow [2023-09-01 05:35:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:35:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:35:39,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1320 transitions. [2023-09-01 05:35:39,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49624060150375937 [2023-09-01 05:35:39,940 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1320 transitions. [2023-09-01 05:35:39,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1320 transitions. [2023-09-01 05:35:39,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:35:39,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1320 transitions. [2023-09-01 05:35:39,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:39,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:39,943 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:39,943 INFO L175 Difference]: Start difference. First operand has 490 places, 1456 transitions, 51095 flow. Second operand 10 states and 1320 transitions. [2023-09-01 05:35:39,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1651 transitions, 58998 flow [2023-09-01 05:35:59,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1651 transitions, 58855 flow, removed 39 selfloop flow, removed 7 redundant places. [2023-09-01 05:35:59,218 INFO L231 Difference]: Finished difference. Result has 496 places, 1525 transitions, 53891 flow [2023-09-01 05:35:59,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=50930, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=53891, PETRI_PLACES=496, PETRI_TRANSITIONS=1525} [2023-09-01 05:35:59,220 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 457 predicate places. [2023-09-01 05:35:59,220 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1525 transitions, 53891 flow [2023-09-01 05:35:59,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:59,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:35:59,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:35:59,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-09-01 05:35:59,220 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:35:59,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:35:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1947565397, now seen corresponding path program 3 times [2023-09-01 05:35:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:35:59,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104969381] [2023-09-01 05:35:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:35:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:35:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:35:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:35:59,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:35:59,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104969381] [2023-09-01 05:35:59,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104969381] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:35:59,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:35:59,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:35:59,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058316528] [2023-09-01 05:35:59,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:35:59,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:35:59,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:35:59,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:35:59,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:35:59,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:35:59,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1525 transitions, 53891 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:35:59,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:35:59,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:35:59,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:36:18,735 INFO L130 PetriNetUnfolder]: 16357/30647 cut-off events. [2023-09-01 05:36:18,736 INFO L131 PetriNetUnfolder]: For 1733136/1733136 co-relation queries the response was YES. [2023-09-01 05:36:19,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321768 conditions, 30647 events. 16357/30647 cut-off events. For 1733136/1733136 co-relation queries the response was YES. Maximal size of possible extension queue 2085. Compared 300080 event pairs, 6895 based on Foata normal form. 20/29654 useless extension candidates. Maximal degree in co-relation 319558. Up to 12987 conditions per place. [2023-09-01 05:36:19,375 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1273 selfloop transitions, 328 changer transitions 0/1602 dead transitions. [2023-09-01 05:36:19,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 1602 transitions, 58621 flow [2023-09-01 05:36:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:36:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:36:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1165 transitions. [2023-09-01 05:36:19,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48663324979114453 [2023-09-01 05:36:19,377 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1165 transitions. [2023-09-01 05:36:19,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1165 transitions. [2023-09-01 05:36:19,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:36:19,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1165 transitions. [2023-09-01 05:36:19,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.44444444444446) internal successors, (1165), 9 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:36:19,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:36:19,379 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:36:19,379 INFO L175 Difference]: Start difference. First operand has 496 places, 1525 transitions, 53891 flow. Second operand 9 states and 1165 transitions. [2023-09-01 05:36:19,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 1602 transitions, 58621 flow [2023-09-01 05:36:38,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1602 transitions, 58345 flow, removed 107 selfloop flow, removed 5 redundant places. [2023-09-01 05:36:38,906 INFO L231 Difference]: Finished difference. Result has 502 places, 1545 transitions, 55288 flow [2023-09-01 05:36:38,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=53552, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=305, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=55288, PETRI_PLACES=502, PETRI_TRANSITIONS=1545} [2023-09-01 05:36:38,908 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 463 predicate places. [2023-09-01 05:36:38,908 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1545 transitions, 55288 flow [2023-09-01 05:36:38,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:36:38,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:36:38,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:36:38,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-09-01 05:36:38,908 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:36:38,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:36:38,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1463759126, now seen corresponding path program 4 times [2023-09-01 05:36:38,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:36:38,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233915869] [2023-09-01 05:36:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:36:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:36:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:36:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:36:39,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:36:39,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233915869] [2023-09-01 05:36:39,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233915869] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:36:39,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:36:39,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:36:39,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956475587] [2023-09-01 05:36:39,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:36:39,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:36:39,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:36:39,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:36:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:36:39,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-09-01 05:36:39,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1545 transitions, 55288 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:36:39,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:36:39,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-09-01 05:36:39,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:37:02,354 INFO L130 PetriNetUnfolder]: 18317/34588 cut-off events. [2023-09-01 05:37:02,354 INFO L131 PetriNetUnfolder]: For 1898836/1898836 co-relation queries the response was YES. [2023-09-01 05:37:03,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360770 conditions, 34588 events. 18317/34588 cut-off events. For 1898836/1898836 co-relation queries the response was YES. Maximal size of possible extension queue 2337. Compared 347142 event pairs, 10526 based on Foata normal form. 64/33479 useless extension candidates. Maximal degree in co-relation 358521. Up to 28230 conditions per place. [2023-09-01 05:37:03,866 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1608 selfloop transitions, 218 changer transitions 189/2016 dead transitions. [2023-09-01 05:37:03,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 2016 transitions, 73277 flow [2023-09-01 05:37:03,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:37:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:37:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2174 transitions. [2023-09-01 05:37:03,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807607253427687 [2023-09-01 05:37:03,868 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2174 transitions. [2023-09-01 05:37:03,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2174 transitions. [2023-09-01 05:37:03,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:37:03,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2174 transitions. [2023-09-01 05:37:03,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 127.88235294117646) internal successors, (2174), 17 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:03,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:03,872 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:03,872 INFO L175 Difference]: Start difference. First operand has 502 places, 1545 transitions, 55288 flow. Second operand 17 states and 2174 transitions. [2023-09-01 05:37:03,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 2016 transitions, 73277 flow [2023-09-01 05:37:25,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 2016 transitions, 73008 flow, removed 16 selfloop flow, removed 5 redundant places. [2023-09-01 05:37:25,466 INFO L231 Difference]: Finished difference. Result has 520 places, 1592 transitions, 57452 flow [2023-09-01 05:37:25,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=55060, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=57452, PETRI_PLACES=520, PETRI_TRANSITIONS=1592} [2023-09-01 05:37:25,468 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 481 predicate places. [2023-09-01 05:37:25,468 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 1592 transitions, 57452 flow [2023-09-01 05:37:25,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:25,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:37:25,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:37:25,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-09-01 05:37:25,469 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:37:25,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:37:25,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1460944016, now seen corresponding path program 5 times [2023-09-01 05:37:25,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:37:25,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569467526] [2023-09-01 05:37:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:37:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:37:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:37:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:37:25,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:37:25,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569467526] [2023-09-01 05:37:25,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569467526] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:37:25,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:37:25,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:37:25,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645600498] [2023-09-01 05:37:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:37:25,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:37:25,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:37:25,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:37:25,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:37:26,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-09-01 05:37:26,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 1592 transitions, 57452 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:26,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:37:26,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-09-01 05:37:26,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:37:48,507 INFO L130 PetriNetUnfolder]: 17732/33506 cut-off events. [2023-09-01 05:37:48,508 INFO L131 PetriNetUnfolder]: For 1867010/1867010 co-relation queries the response was YES. [2023-09-01 05:37:49,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354385 conditions, 33506 events. 17732/33506 cut-off events. For 1867010/1867010 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 335395 event pairs, 10490 based on Foata normal form. 2/32374 useless extension candidates. Maximal degree in co-relation 352265. Up to 32545 conditions per place. [2023-09-01 05:37:49,511 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 1437 selfloop transitions, 238 changer transitions 9/1685 dead transitions. [2023-09-01 05:37:49,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1685 transitions, 62833 flow [2023-09-01 05:37:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-01 05:37:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-09-01 05:37:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2696 transitions. [2023-09-01 05:37:49,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606971975393028 [2023-09-01 05:37:49,513 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2696 transitions. [2023-09-01 05:37:49,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2696 transitions. [2023-09-01 05:37:49,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:37:49,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2696 transitions. [2023-09-01 05:37:49,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 122.54545454545455) internal successors, (2696), 22 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:49,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:49,518 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:37:49,518 INFO L175 Difference]: Start difference. First operand has 520 places, 1592 transitions, 57452 flow. Second operand 22 states and 2696 transitions. [2023-09-01 05:37:49,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 1685 transitions, 62833 flow [2023-09-01 05:38:13,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 1685 transitions, 62734 flow, removed 30 selfloop flow, removed 5 redundant places. [2023-09-01 05:38:13,300 INFO L231 Difference]: Finished difference. Result has 541 places, 1601 transitions, 58190 flow [2023-09-01 05:38:13,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=57353, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=58190, PETRI_PLACES=541, PETRI_TRANSITIONS=1601} [2023-09-01 05:38:13,301 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 502 predicate places. [2023-09-01 05:38:13,302 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 1601 transitions, 58190 flow [2023-09-01 05:38:13,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:13,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:38:13,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:38:13,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-09-01 05:38:13,302 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:38:13,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:38:13,302 INFO L85 PathProgramCache]: Analyzing trace with hash 836325516, now seen corresponding path program 2 times [2023-09-01 05:38:13,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:38:13,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818623639] [2023-09-01 05:38:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:38:13,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:38:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:38:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:38:13,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:38:13,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818623639] [2023-09-01 05:38:13,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818623639] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:38:13,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:38:13,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:38:13,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741070716] [2023-09-01 05:38:13,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:38:13,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:38:13,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:38:13,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:38:13,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:38:13,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:38:13,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1601 transitions, 58190 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:13,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:38:13,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:38:13,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:38:35,687 INFO L130 PetriNetUnfolder]: 17737/33453 cut-off events. [2023-09-01 05:38:35,687 INFO L131 PetriNetUnfolder]: For 1915945/1915945 co-relation queries the response was YES. [2023-09-01 05:38:36,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353425 conditions, 33453 events. 17737/33453 cut-off events. For 1915945/1915945 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 334378 event pairs, 6090 based on Foata normal form. 40/32375 useless extension candidates. Maximal degree in co-relation 352911. Up to 23954 conditions per place. [2023-09-01 05:38:36,825 INFO L137 encePairwiseOnDemand]: 248/266 looper letters, 1010 selfloop transitions, 661 changer transitions 2/1674 dead transitions. [2023-09-01 05:38:36,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1674 transitions, 62892 flow [2023-09-01 05:38:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 05:38:36,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 05:38:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2023-09-01 05:38:36,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2023-09-01 05:38:36,830 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1786 transitions. [2023-09-01 05:38:36,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1786 transitions. [2023-09-01 05:38:36,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:38:36,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1786 transitions. [2023-09-01 05:38:36,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 127.57142857142857) internal successors, (1786), 14 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:36,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:36,835 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:36,835 INFO L175 Difference]: Start difference. First operand has 541 places, 1601 transitions, 58190 flow. Second operand 14 states and 1786 transitions. [2023-09-01 05:38:36,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1674 transitions, 62892 flow [2023-09-01 05:38:58,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1674 transitions, 62523 flow, removed 131 selfloop flow, removed 9 redundant places. [2023-09-01 05:38:58,573 INFO L231 Difference]: Finished difference. Result has 550 places, 1632 transitions, 60873 flow [2023-09-01 05:38:58,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=57706, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=626, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=60873, PETRI_PLACES=550, PETRI_TRANSITIONS=1632} [2023-09-01 05:38:58,574 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 511 predicate places. [2023-09-01 05:38:58,574 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 1632 transitions, 60873 flow [2023-09-01 05:38:58,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:58,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:38:58,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:38:58,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-09-01 05:38:58,575 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:38:58,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:38:58,575 INFO L85 PathProgramCache]: Analyzing trace with hash 838752815, now seen corresponding path program 3 times [2023-09-01 05:38:58,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:38:58,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869370976] [2023-09-01 05:38:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:38:58,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:38:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:38:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:38:58,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:38:58,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869370976] [2023-09-01 05:38:58,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869370976] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:38:58,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:38:58,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:38:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831223334] [2023-09-01 05:38:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:38:58,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:38:58,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:38:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:38:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:38:59,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-09-01 05:38:59,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 1632 transitions, 60873 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:38:59,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:38:59,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-09-01 05:38:59,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:39:20,907 INFO L130 PetriNetUnfolder]: 17813/33584 cut-off events. [2023-09-01 05:39:20,907 INFO L131 PetriNetUnfolder]: For 2018759/2018759 co-relation queries the response was YES. [2023-09-01 05:39:21,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364539 conditions, 33584 events. 17813/33584 cut-off events. For 2018759/2018759 co-relation queries the response was YES. Maximal size of possible extension queue 2242. Compared 335850 event pairs, 6175 based on Foata normal form. 44/32506 useless extension candidates. Maximal degree in co-relation 364048. Up to 24975 conditions per place. [2023-09-01 05:39:21,751 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1070 selfloop transitions, 602 changer transitions 0/1673 dead transitions. [2023-09-01 05:39:21,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1673 transitions, 65122 flow [2023-09-01 05:39:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:39:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:39:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1151 transitions. [2023-09-01 05:39:21,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48078529657477026 [2023-09-01 05:39:21,752 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1151 transitions. [2023-09-01 05:39:21,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1151 transitions. [2023-09-01 05:39:21,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:39:21,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1151 transitions. [2023-09-01 05:39:21,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 127.88888888888889) internal successors, (1151), 9 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:39:21,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:39:21,755 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:39:21,755 INFO L175 Difference]: Start difference. First operand has 550 places, 1632 transitions, 60873 flow. Second operand 9 states and 1151 transitions. [2023-09-01 05:39:21,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1673 transitions, 65122 flow Killed by 15