./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c -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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 11:22:56,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 11:22:56,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 11:22:56,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 11:22:56,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 11:22:56,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 11:22:56,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 11:22:56,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 11:22:56,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 11:22:56,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 11:22:56,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 11:22:56,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 11:22:56,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 11:22:56,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 11:22:56,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 11:22:56,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 11:22:56,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 11:22:56,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 11:22:56,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 11:22:56,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 11:22:56,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 11:22:56,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 11:22:56,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 11:22:56,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 11:22:56,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 11:22:56,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 11:22:56,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 11:22:56,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 11:22:56,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 11:22:56,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 11:22:56,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 11:22:56,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 11:22:56,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 11:22:56,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 11:22:56,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 11:22:56,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 11:22:56,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 11:22:56,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 11:22:56,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 11:22:56,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 11:22:56,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 11:22:56,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 11:22:56,318 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 11:22:56,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 11:22:56,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 11:22:56,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 11:22:56,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 11:22:56,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 11:22:56,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 11:22:56,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 11:22:56,323 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 11:22:56,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 11:22:56,324 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 11:22:56,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 11:22:56,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 11:22:56,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 11:22:56,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 11:22:56,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 11:22:56,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 11:22:56,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 11:22:56,326 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 11:22:56,326 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 11:22:56,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 11:22:56,326 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 11:22:56,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 11:22:56,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 11:22:56,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 11:22:56,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 11:22:56,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 11:22:56,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 11:22:56,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 11:22:56,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 11:22:56,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 11:22:56,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 11:22:56,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 11:22:56,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 11:22:56,329 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 11:22:56,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 11:22:56,330 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 11:22:56,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 11:22:56,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 11:22:56,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 11:22:56,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 11:22:56,632 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 11:22:56,633 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 11:22:56,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-08-30 11:22:57,885 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 11:22:58,119 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 11:22:58,120 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-08-30 11:22:58,126 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da901a60/db83df69bed744a39763990aef8a998c/FLAG67576533d [2023-08-30 11:22:58,141 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da901a60/db83df69bed744a39763990aef8a998c [2023-08-30 11:22:58,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 11:22:58,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 11:22:58,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 11:22:58,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 11:22:58,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 11:22:58,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b0769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58, skipping insertion in model container [2023-08-30 11:22:58,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 11:22:58,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 11:22:58,348 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2023-08-30 11:22:58,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 11:22:58,365 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 11:22:58,405 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2023-08-30 11:22:58,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 11:22:58,423 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 11:22:58,425 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 11:22:58,431 INFO L208 MainTranslator]: Completed translation [2023-08-30 11:22:58,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58 WrapperNode [2023-08-30 11:22:58,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 11:22:58,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 11:22:58,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 11:22:58,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 11:22:58,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,496 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 267 [2023-08-30 11:22:58,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 11:22:58,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 11:22:58,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 11:22:58,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 11:22:58,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,542 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 11:22:58,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 11:22:58,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 11:22:58,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 11:22:58,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (1/1) ... [2023-08-30 11:22:58,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 11:22:58,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:22:58,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 11:22:58,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 11:22:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 11:22:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 11:22:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 11:22:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 11:22:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 11:22:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 11:22:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 11:22:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-30 11:22:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-30 11:22:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 11:22:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-30 11:22:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-30 11:22:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 11:22:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 11:22:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 11:22:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 11:22:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 11:22:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 11:22:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 11:22:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 11:22:58,628 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 11:22:58,744 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 11:22:58,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 11:22:59,139 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 11:22:59,285 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 11:22:59,285 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 11:22:59,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:22:59 BoogieIcfgContainer [2023-08-30 11:22:59,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 11:22:59,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 11:22:59,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 11:22:59,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 11:22:59,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:22:58" (1/3) ... [2023-08-30 11:22:59,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f19653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:22:59, skipping insertion in model container [2023-08-30 11:22:59,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:22:58" (2/3) ... [2023-08-30 11:22:59,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f19653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:22:59, skipping insertion in model container [2023-08-30 11:22:59,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:22:59" (3/3) ... [2023-08-30 11:22:59,295 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-08-30 11:22:59,302 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 11:22:59,310 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 11:22:59,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-30 11:22:59,310 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 11:22:59,394 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-30 11:22:59,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 185 transitions, 410 flow [2023-08-30 11:22:59,558 INFO L130 PetriNetUnfolder]: 2/180 cut-off events. [2023-08-30 11:22:59,559 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 11:22:59,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 180 events. 2/180 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2023-08-30 11:22:59,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 199 places, 185 transitions, 410 flow [2023-08-30 11:22:59,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 158 transitions, 343 flow [2023-08-30 11:22:59,576 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 11:22:59,584 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 158 transitions, 343 flow [2023-08-30 11:22:59,587 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 158 transitions, 343 flow [2023-08-30 11:22:59,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 158 transitions, 343 flow [2023-08-30 11:22:59,616 INFO L130 PetriNetUnfolder]: 1/158 cut-off events. [2023-08-30 11:22:59,616 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 11:22:59,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 158 events. 1/158 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2023-08-30 11:22:59,619 INFO L119 LiptonReduction]: Number of co-enabled transitions 4234 [2023-08-30 11:23:04,346 INFO L134 LiptonReduction]: Checked pairs total: 23542 [2023-08-30 11:23:04,346 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-30 11:23:04,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 11:23:04,367 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;@59f20390, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 11:23:04,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-08-30 11:23:04,370 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-30 11:23:04,370 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 11:23:04,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:23:04,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 11:23:04,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:23:04,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:23:04,375 INFO L85 PathProgramCache]: Analyzing trace with hash 753089, now seen corresponding path program 1 times [2023-08-30 11:23:04,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:23:04,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460246397] [2023-08-30 11:23:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:23:04,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:23:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:23:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:23:04,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:23:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460246397] [2023-08-30 11:23:04,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460246397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:23:04,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:23:04,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:23:04,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265200453] [2023-08-30 11:23:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:23:04,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:23:04,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:23:04,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:23:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:23:04,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:23:04,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 60 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:04,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:23:04,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:23:04,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:23:25,811 INFO L130 PetriNetUnfolder]: 314139/408388 cut-off events. [2023-08-30 11:23:25,812 INFO L131 PetriNetUnfolder]: For 17430/17430 co-relation queries the response was YES. [2023-08-30 11:23:26,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819885 conditions, 408388 events. 314139/408388 cut-off events. For 17430/17430 co-relation queries the response was YES. Maximal size of possible extension queue 20701. Compared 2997149 event pairs, 258754 based on Foata normal form. 0/210564 useless extension candidates. Maximal degree in co-relation 818236. Up to 397670 conditions per place. [2023-08-30 11:23:28,208 INFO L137 encePairwiseOnDemand]: 272/288 looper letters, 62 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2023-08-30 11:23:28,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 323 flow [2023-08-30 11:23:28,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:23:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:23:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2023-08-30 11:23:28,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5590277777777778 [2023-08-30 11:23:28,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2023-08-30 11:23:28,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2023-08-30 11:23:28,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:23:28,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2023-08-30 11:23:28,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:28,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:28,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:28,235 INFO L175 Difference]: Start difference. First operand has 76 places, 60 transitions, 147 flow. Second operand 3 states and 483 transitions. [2023-08-30 11:23:28,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 323 flow [2023-08-30 11:23:28,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 74 transitions, 299 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 11:23:28,854 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 188 flow [2023-08-30 11:23:28,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2023-08-30 11:23:28,860 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-30 11:23:28,861 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 188 flow [2023-08-30 11:23:28,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:28,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:23:28,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:23:28,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 11:23:28,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:23:28,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:23:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash 965695412, now seen corresponding path program 1 times [2023-08-30 11:23:28,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:23:28,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309079639] [2023-08-30 11:23:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:23:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:23:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:23:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:23:28,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:23:28,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309079639] [2023-08-30 11:23:28,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309079639] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:23:28,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:23:28,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:23:28,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750219690] [2023-08-30 11:23:28,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:23:28,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:23:28,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:23:28,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:23:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:23:28,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:23:28,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:28,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:23:28,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:23:28,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:23:38,850 INFO L130 PetriNetUnfolder]: 163615/213924 cut-off events. [2023-08-30 11:23:38,850 INFO L131 PetriNetUnfolder]: For 23235/23235 co-relation queries the response was YES. [2023-08-30 11:23:39,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487242 conditions, 213924 events. 163615/213924 cut-off events. For 23235/23235 co-relation queries the response was YES. Maximal size of possible extension queue 10639. Compared 1515649 event pairs, 156055 based on Foata normal form. 0/123339 useless extension candidates. Maximal degree in co-relation 353462. Up to 208316 conditions per place. [2023-08-30 11:23:40,175 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 53 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-08-30 11:23:40,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 276 flow [2023-08-30 11:23:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:23:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:23:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2023-08-30 11:23:40,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2023-08-30 11:23:40,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2023-08-30 11:23:40,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2023-08-30 11:23:40,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:23:40,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2023-08-30 11:23:40,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:40,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:40,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:40,185 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 188 flow. Second operand 3 states and 459 transitions. [2023-08-30 11:23:40,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 276 flow [2023-08-30 11:23:40,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:23:40,188 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 164 flow [2023-08-30 11:23:40,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2023-08-30 11:23:40,189 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -10 predicate places. [2023-08-30 11:23:40,189 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 164 flow [2023-08-30 11:23:40,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:40,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:23:40,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:23:40,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 11:23:40,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:23:40,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:23:40,191 INFO L85 PathProgramCache]: Analyzing trace with hash 961209093, now seen corresponding path program 1 times [2023-08-30 11:23:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:23:40,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137280889] [2023-08-30 11:23:40,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:23:40,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:23:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:23:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:23:40,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:23:40,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137280889] [2023-08-30 11:23:40,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137280889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:23:40,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:23:40,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:23:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812285354] [2023-08-30 11:23:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:23:40,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 11:23:40,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:23:40,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 11:23:40,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 11:23:40,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:23:40,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:40,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:23:40,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:23:40,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:23:49,411 INFO L130 PetriNetUnfolder]: 158918/209679 cut-off events. [2023-08-30 11:23:49,412 INFO L131 PetriNetUnfolder]: For 22228/22228 co-relation queries the response was YES. [2023-08-30 11:23:49,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472606 conditions, 209679 events. 158918/209679 cut-off events. For 22228/22228 co-relation queries the response was YES. Maximal size of possible extension queue 10638. Compared 1519984 event pairs, 88368 based on Foata normal form. 0/122197 useless extension candidates. Maximal degree in co-relation 472598. Up to 202162 conditions per place. [2023-08-30 11:23:50,359 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 86 selfloop transitions, 11 changer transitions 0/103 dead transitions. [2023-08-30 11:23:50,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 464 flow [2023-08-30 11:23:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 11:23:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 11:23:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 642 transitions. [2023-08-30 11:23:50,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5572916666666666 [2023-08-30 11:23:50,361 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 642 transitions. [2023-08-30 11:23:50,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 642 transitions. [2023-08-30 11:23:50,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:23:50,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 642 transitions. [2023-08-30 11:23:50,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:50,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:50,367 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:50,367 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 164 flow. Second operand 4 states and 642 transitions. [2023-08-30 11:23:50,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 464 flow [2023-08-30 11:23:50,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 103 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:23:50,371 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 235 flow [2023-08-30 11:23:50,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-30 11:23:50,372 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2023-08-30 11:23:50,373 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 235 flow [2023-08-30 11:23:50,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:50,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:23:50,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:23:50,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 11:23:50,374 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:23:50,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:23:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash -271892987, now seen corresponding path program 1 times [2023-08-30 11:23:50,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:23:50,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882402593] [2023-08-30 11:23:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:23:50,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:23:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:23:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:23:50,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:23:50,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882402593] [2023-08-30 11:23:50,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882402593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:23:50,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:23:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:23:50,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339640177] [2023-08-30 11:23:50,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:23:50,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:23:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:23:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:23:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:23:50,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:23:50,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:50,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:23:50,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:23:50,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:23:55,807 INFO L130 PetriNetUnfolder]: 90756/119471 cut-off events. [2023-08-30 11:23:55,807 INFO L131 PetriNetUnfolder]: For 50300/50300 co-relation queries the response was YES. [2023-08-30 11:23:55,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308792 conditions, 119471 events. 90756/119471 cut-off events. For 50300/50300 co-relation queries the response was YES. Maximal size of possible extension queue 6286. Compared 756133 event pairs, 27762 based on Foata normal form. 0/72247 useless extension candidates. Maximal degree in co-relation 308782. Up to 110267 conditions per place. [2023-08-30 11:23:56,363 INFO L137 encePairwiseOnDemand]: 272/288 looper letters, 87 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2023-08-30 11:23:56,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 99 transitions, 559 flow [2023-08-30 11:23:56,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:23:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:23:56,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 493 transitions. [2023-08-30 11:23:56,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706018518518519 [2023-08-30 11:23:56,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 493 transitions. [2023-08-30 11:23:56,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 493 transitions. [2023-08-30 11:23:56,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:23:56,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 493 transitions. [2023-08-30 11:23:56,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:56,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:56,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:56,372 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 235 flow. Second operand 3 states and 493 transitions. [2023-08-30 11:23:56,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 99 transitions, 559 flow [2023-08-30 11:23:56,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 99 transitions, 522 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-30 11:23:56,377 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 271 flow [2023-08-30 11:23:56,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2023-08-30 11:23:56,379 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-30 11:23:56,379 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 271 flow [2023-08-30 11:23:56,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:56,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:23:56,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:23:56,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 11:23:56,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:23:56,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:23:56,382 INFO L85 PathProgramCache]: Analyzing trace with hash 837633846, now seen corresponding path program 1 times [2023-08-30 11:23:56,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:23:56,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734163981] [2023-08-30 11:23:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:23:56,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:23:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:23:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:23:56,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:23:56,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734163981] [2023-08-30 11:23:56,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734163981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:23:56,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:23:56,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 11:23:56,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147091411] [2023-08-30 11:23:56,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:23:56,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 11:23:56,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:23:56,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 11:23:56,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 11:23:56,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:23:56,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:23:56,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:23:56,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:23:56,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:02,047 INFO L130 PetriNetUnfolder]: 81174/110495 cut-off events. [2023-08-30 11:24:02,047 INFO L131 PetriNetUnfolder]: For 43908/43908 co-relation queries the response was YES. [2023-08-30 11:24:02,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320708 conditions, 110495 events. 81174/110495 cut-off events. For 43908/43908 co-relation queries the response was YES. Maximal size of possible extension queue 6489. Compared 801154 event pairs, 31584 based on Foata normal form. 0/68469 useless extension candidates. Maximal degree in co-relation 320697. Up to 105040 conditions per place. [2023-08-30 11:24:02,831 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 115 selfloop transitions, 16 changer transitions 0/137 dead transitions. [2023-08-30 11:24:02,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 137 transitions, 762 flow [2023-08-30 11:24:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 11:24:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 11:24:02,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 801 transitions. [2023-08-30 11:24:02,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55625 [2023-08-30 11:24:02,834 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 801 transitions. [2023-08-30 11:24:02,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 801 transitions. [2023-08-30 11:24:02,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:02,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 801 transitions. [2023-08-30 11:24:02,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.2) internal successors, (801), 5 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) [2023-08-30 11:24:02,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:02,839 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:02,839 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 271 flow. Second operand 5 states and 801 transitions. [2023-08-30 11:24:02,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 137 transitions, 762 flow [2023-08-30 11:24:02,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 137 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:24:02,856 INFO L231 Difference]: Finished difference. Result has 74 places, 75 transitions, 357 flow [2023-08-30 11:24:02,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=357, PETRI_PLACES=74, PETRI_TRANSITIONS=75} [2023-08-30 11:24:02,857 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -2 predicate places. [2023-08-30 11:24:02,857 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 75 transitions, 357 flow [2023-08-30 11:24:02,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:02,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:02,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:02,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 11:24:02,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:02,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash -632426327, now seen corresponding path program 1 times [2023-08-30 11:24:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:02,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308280527] [2023-08-30 11:24:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:02,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:02,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308280527] [2023-08-30 11:24:02,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308280527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:02,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:02,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 11:24:02,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679976567] [2023-08-30 11:24:02,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:02,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 11:24:02,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:02,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 11:24:02,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 11:24:02,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:24:02,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 357 flow. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:02,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:02,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:24:02,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:07,265 INFO L130 PetriNetUnfolder]: 61932/84493 cut-off events. [2023-08-30 11:24:07,266 INFO L131 PetriNetUnfolder]: For 61937/61937 co-relation queries the response was YES. [2023-08-30 11:24:07,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254780 conditions, 84493 events. 61932/84493 cut-off events. For 61937/61937 co-relation queries the response was YES. Maximal size of possible extension queue 5166. Compared 604821 event pairs, 10484 based on Foata normal form. 0/54295 useless extension candidates. Maximal degree in co-relation 254767. Up to 72638 conditions per place. [2023-08-30 11:24:07,698 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 149 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2023-08-30 11:24:07,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 176 transitions, 1039 flow [2023-08-30 11:24:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 11:24:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 11:24:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2023-08-30 11:24:07,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5613425925925926 [2023-08-30 11:24:07,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2023-08-30 11:24:07,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2023-08-30 11:24:07,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:07,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2023-08-30 11:24:07,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:07,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:07,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:07,708 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 357 flow. Second operand 6 states and 970 transitions. [2023-08-30 11:24:07,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 176 transitions, 1039 flow [2023-08-30 11:24:07,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 176 transitions, 997 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 11:24:07,738 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 427 flow [2023-08-30 11:24:07,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2023-08-30 11:24:07,739 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2023-08-30 11:24:07,739 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 427 flow [2023-08-30 11:24:07,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:07,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:07,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:07,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 11:24:07,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:07,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1518946546, now seen corresponding path program 1 times [2023-08-30 11:24:07,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:07,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090444659] [2023-08-30 11:24:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:07,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:07,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:07,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090444659] [2023-08-30 11:24:07,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090444659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:07,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:07,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:24:07,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173347949] [2023-08-30 11:24:07,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:07,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:24:07,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:24:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:24:07,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:24:07,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:07,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:07,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:24:07,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:10,228 INFO L130 PetriNetUnfolder]: 30540/41678 cut-off events. [2023-08-30 11:24:10,228 INFO L131 PetriNetUnfolder]: For 58837/58837 co-relation queries the response was YES. [2023-08-30 11:24:10,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135494 conditions, 41678 events. 30540/41678 cut-off events. For 58837/58837 co-relation queries the response was YES. Maximal size of possible extension queue 2254. Compared 270480 event pairs, 23262 based on Foata normal form. 0/31784 useless extension candidates. Maximal degree in co-relation 135480. Up to 40445 conditions per place. [2023-08-30 11:24:10,421 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 68 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2023-08-30 11:24:10,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 75 transitions, 545 flow [2023-08-30 11:24:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:24:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:24:10,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2023-08-30 11:24:10,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5254629629629629 [2023-08-30 11:24:10,423 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2023-08-30 11:24:10,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2023-08-30 11:24:10,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:10,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2023-08-30 11:24:10,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:10,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:10,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:10,426 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 427 flow. Second operand 3 states and 454 transitions. [2023-08-30 11:24:10,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 75 transitions, 545 flow [2023-08-30 11:24:10,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 75 transitions, 483 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-30 11:24:10,534 INFO L231 Difference]: Finished difference. Result has 70 places, 75 transitions, 347 flow [2023-08-30 11:24:10,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2023-08-30 11:24:10,535 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-30 11:24:10,535 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 75 transitions, 347 flow [2023-08-30 11:24:10,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:10,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:10,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:10,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 11:24:10,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:10,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:10,536 INFO L85 PathProgramCache]: Analyzing trace with hash 342454457, now seen corresponding path program 1 times [2023-08-30 11:24:10,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:10,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102241154] [2023-08-30 11:24:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:10,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:10,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:10,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102241154] [2023-08-30 11:24:10,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102241154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:10,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:10,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:24:10,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503668530] [2023-08-30 11:24:10,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:10,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 11:24:10,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 11:24:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 11:24:10,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:24:10,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 347 flow. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:10,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:10,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:24:10,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:12,060 INFO L130 PetriNetUnfolder]: 18771/25612 cut-off events. [2023-08-30 11:24:12,060 INFO L131 PetriNetUnfolder]: For 23325/23325 co-relation queries the response was YES. [2023-08-30 11:24:12,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77300 conditions, 25612 events. 18771/25612 cut-off events. For 23325/23325 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 141038 event pairs, 2908 based on Foata normal form. 0/21433 useless extension candidates. Maximal degree in co-relation 77286. Up to 15537 conditions per place. [2023-08-30 11:24:12,197 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 136 selfloop transitions, 11 changer transitions 0/153 dead transitions. [2023-08-30 11:24:12,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 153 transitions, 1057 flow [2023-08-30 11:24:12,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 11:24:12,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 11:24:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 647 transitions. [2023-08-30 11:24:12,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5616319444444444 [2023-08-30 11:24:12,198 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 647 transitions. [2023-08-30 11:24:12,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 647 transitions. [2023-08-30 11:24:12,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:12,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 647 transitions. [2023-08-30 11:24:12,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:12,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:12,201 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:12,202 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 347 flow. Second operand 4 states and 647 transitions. [2023-08-30 11:24:12,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 153 transitions, 1057 flow [2023-08-30 11:24:12,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 153 transitions, 1056 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:24:12,221 INFO L231 Difference]: Finished difference. Result has 73 places, 80 transitions, 418 flow [2023-08-30 11:24:12,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=418, PETRI_PLACES=73, PETRI_TRANSITIONS=80} [2023-08-30 11:24:12,221 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -3 predicate places. [2023-08-30 11:24:12,222 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 80 transitions, 418 flow [2023-08-30 11:24:12,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:12,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:12,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:12,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 11:24:12,223 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:12,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:12,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1169712019, now seen corresponding path program 1 times [2023-08-30 11:24:12,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:12,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585310590] [2023-08-30 11:24:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:12,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:12,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:12,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585310590] [2023-08-30 11:24:12,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585310590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:12,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:12,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 11:24:12,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971270278] [2023-08-30 11:24:12,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:12,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 11:24:12,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 11:24:12,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 11:24:12,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:24:12,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 80 transitions, 418 flow. Second operand has 7 states, 7 states have (on average 137.14285714285714) internal successors, (960), 7 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:12,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:12,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:24:12,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:13,468 INFO L130 PetriNetUnfolder]: 14070/20315 cut-off events. [2023-08-30 11:24:13,469 INFO L131 PetriNetUnfolder]: For 31967/31967 co-relation queries the response was YES. [2023-08-30 11:24:13,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65046 conditions, 20315 events. 14070/20315 cut-off events. For 31967/31967 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 128285 event pairs, 124 based on Foata normal form. 0/18403 useless extension candidates. Maximal degree in co-relation 65030. Up to 7247 conditions per place. [2023-08-30 11:24:13,584 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 163 selfloop transitions, 26 changer transitions 0/195 dead transitions. [2023-08-30 11:24:13,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 195 transitions, 1265 flow [2023-08-30 11:24:13,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 11:24:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 11:24:13,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1104 transitions. [2023-08-30 11:24:13,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2023-08-30 11:24:13,587 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1104 transitions. [2023-08-30 11:24:13,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1104 transitions. [2023-08-30 11:24:13,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:13,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1104 transitions. [2023-08-30 11:24:13,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 157.71428571428572) internal successors, (1104), 7 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:13,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:13,593 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:13,593 INFO L175 Difference]: Start difference. First operand has 73 places, 80 transitions, 418 flow. Second operand 7 states and 1104 transitions. [2023-08-30 11:24:13,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 195 transitions, 1265 flow [2023-08-30 11:24:13,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 195 transitions, 1178 flow, removed 20 selfloop flow, removed 2 redundant places. [2023-08-30 11:24:13,635 INFO L231 Difference]: Finished difference. Result has 72 places, 75 transitions, 398 flow [2023-08-30 11:24:13,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=398, PETRI_PLACES=72, PETRI_TRANSITIONS=75} [2023-08-30 11:24:13,637 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-08-30 11:24:13,637 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 75 transitions, 398 flow [2023-08-30 11:24:13,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 137.14285714285714) internal successors, (960), 7 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:13,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:13,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:13,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 11:24:13,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:13,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:13,638 INFO L85 PathProgramCache]: Analyzing trace with hash 154542900, now seen corresponding path program 1 times [2023-08-30 11:24:13,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:13,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111910252] [2023-08-30 11:24:13,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:13,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:13,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:13,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111910252] [2023-08-30 11:24:13,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111910252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:13,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:13,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 11:24:13,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29148338] [2023-08-30 11:24:13,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:13,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 11:24:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:13,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 11:24:13,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 11:24:13,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:24:13,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 75 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:13,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:13,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:24:13,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:14,528 INFO L130 PetriNetUnfolder]: 10936/14944 cut-off events. [2023-08-30 11:24:14,529 INFO L131 PetriNetUnfolder]: For 32300/32300 co-relation queries the response was YES. [2023-08-30 11:24:14,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49646 conditions, 14944 events. 10936/14944 cut-off events. For 32300/32300 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 74883 event pairs, 1322 based on Foata normal form. 0/14564 useless extension candidates. Maximal degree in co-relation 49630. Up to 5049 conditions per place. [2023-08-30 11:24:14,608 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 145 selfloop transitions, 16 changer transitions 0/167 dead transitions. [2023-08-30 11:24:14,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 167 transitions, 1239 flow [2023-08-30 11:24:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 11:24:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 11:24:14,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 791 transitions. [2023-08-30 11:24:14,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5493055555555556 [2023-08-30 11:24:14,611 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 791 transitions. [2023-08-30 11:24:14,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 791 transitions. [2023-08-30 11:24:14,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:14,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 791 transitions. [2023-08-30 11:24:14,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.2) internal successors, (791), 5 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:14,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:14,615 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:14,615 INFO L175 Difference]: Start difference. First operand has 72 places, 75 transitions, 398 flow. Second operand 5 states and 791 transitions. [2023-08-30 11:24:14,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 167 transitions, 1239 flow [2023-08-30 11:24:14,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 167 transitions, 896 flow, removed 80 selfloop flow, removed 9 redundant places. [2023-08-30 11:24:14,675 INFO L231 Difference]: Finished difference. Result has 68 places, 80 transitions, 372 flow [2023-08-30 11:24:14,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=372, PETRI_PLACES=68, PETRI_TRANSITIONS=80} [2023-08-30 11:24:14,676 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2023-08-30 11:24:14,676 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 80 transitions, 372 flow [2023-08-30 11:24:14,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:14,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:14,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:14,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 11:24:14,677 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:14,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:14,677 INFO L85 PathProgramCache]: Analyzing trace with hash -194984331, now seen corresponding path program 1 times [2023-08-30 11:24:14,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:14,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210525766] [2023-08-30 11:24:14,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:14,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:14,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:14,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:14,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210525766] [2023-08-30 11:24:14,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210525766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:14,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:14,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 11:24:14,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476766059] [2023-08-30 11:24:14,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:14,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 11:24:14,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:14,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 11:24:14,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 11:24:14,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2023-08-30 11:24:14,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 80 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:14,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:14,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2023-08-30 11:24:14,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:15,845 INFO L130 PetriNetUnfolder]: 12742/17337 cut-off events. [2023-08-30 11:24:15,845 INFO L131 PetriNetUnfolder]: For 16475/16475 co-relation queries the response was YES. [2023-08-30 11:24:15,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50647 conditions, 17337 events. 12742/17337 cut-off events. For 16475/16475 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 87236 event pairs, 1140 based on Foata normal form. 0/17299 useless extension candidates. Maximal degree in co-relation 50634. Up to 6305 conditions per place. [2023-08-30 11:24:15,938 INFO L137 encePairwiseOnDemand]: 272/288 looper letters, 168 selfloop transitions, 26 changer transitions 5/204 dead transitions. [2023-08-30 11:24:15,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 204 transitions, 1153 flow [2023-08-30 11:24:15,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 11:24:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 11:24:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1076 transitions. [2023-08-30 11:24:15,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5337301587301587 [2023-08-30 11:24:15,941 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1076 transitions. [2023-08-30 11:24:15,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1076 transitions. [2023-08-30 11:24:15,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:15,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1076 transitions. [2023-08-30 11:24:15,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.71428571428572) internal successors, (1076), 7 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:15,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:15,947 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:15,947 INFO L175 Difference]: Start difference. First operand has 68 places, 80 transitions, 372 flow. Second operand 7 states and 1076 transitions. [2023-08-30 11:24:15,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 204 transitions, 1153 flow [2023-08-30 11:24:16,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 204 transitions, 1111 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 11:24:16,522 INFO L231 Difference]: Finished difference. Result has 72 places, 80 transitions, 402 flow [2023-08-30 11:24:16,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=402, PETRI_PLACES=72, PETRI_TRANSITIONS=80} [2023-08-30 11:24:16,522 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-08-30 11:24:16,522 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 80 transitions, 402 flow [2023-08-30 11:24:16,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:16,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:24:16,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:16,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 11:24:16,523 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 11:24:16,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:24:16,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1709975099, now seen corresponding path program 1 times [2023-08-30 11:24:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:24:16,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288952175] [2023-08-30 11:24:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:24:16,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:24:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:24:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:24:16,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:24:16,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288952175] [2023-08-30 11:24:16,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288952175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:24:16,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:24:16,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 11:24:16,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378769750] [2023-08-30 11:24:16,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:24:16,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 11:24:16,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:24:16,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 11:24:16,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 11:24:16,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 11:24:16,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 80 transitions, 402 flow. Second operand has 7 states, 7 states have (on average 138.57142857142858) internal successors, (970), 7 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:16,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:24:16,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 11:24:16,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:24:17,470 INFO L130 PetriNetUnfolder]: 10384/14069 cut-off events. [2023-08-30 11:24:17,471 INFO L131 PetriNetUnfolder]: For 14900/14900 co-relation queries the response was YES. [2023-08-30 11:24:17,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42163 conditions, 14069 events. 10384/14069 cut-off events. For 14900/14900 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 69281 event pairs, 1210 based on Foata normal form. 30/14069 useless extension candidates. Maximal degree in co-relation 42149. Up to 5049 conditions per place. [2023-08-30 11:24:17,535 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 0 selfloop transitions, 0 changer transitions 181/181 dead transitions. [2023-08-30 11:24:17,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 181 transitions, 1014 flow [2023-08-30 11:24:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 11:24:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 11:24:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1075 transitions. [2023-08-30 11:24:17,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.533234126984127 [2023-08-30 11:24:17,539 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1075 transitions. [2023-08-30 11:24:17,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1075 transitions. [2023-08-30 11:24:17,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:24:17,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1075 transitions. [2023-08-30 11:24:17,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.57142857142858) internal successors, (1075), 7 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:17,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:17,544 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:17,545 INFO L175 Difference]: Start difference. First operand has 72 places, 80 transitions, 402 flow. Second operand 7 states and 1075 transitions. [2023-08-30 11:24:17,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 181 transitions, 1014 flow [2023-08-30 11:24:18,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 181 transitions, 910 flow, removed 15 selfloop flow, removed 9 redundant places. [2023-08-30 11:24:18,122 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2023-08-30 11:24:18,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2023-08-30 11:24:18,123 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -12 predicate places. [2023-08-30 11:24:18,123 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2023-08-30 11:24:18,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 138.57142857142858) internal successors, (970), 7 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:24:18,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2023-08-30 11:24:18,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2023-08-30 11:24:18,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2023-08-30 11:24:18,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 45 remaining) [2023-08-30 11:24:18,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2023-08-30 11:24:18,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2023-08-30 11:24:18,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2023-08-30 11:24:18,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2023-08-30 11:24:18,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2023-08-30 11:24:18,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2023-08-30 11:24:18,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2023-08-30 11:24:18,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2023-08-30 11:24:18,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2023-08-30 11:24:18,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2023-08-30 11:24:18,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2023-08-30 11:24:18,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2023-08-30 11:24:18,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2023-08-30 11:24:18,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2023-08-30 11:24:18,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2023-08-30 11:24:18,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2023-08-30 11:24:18,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2023-08-30 11:24:18,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2023-08-30 11:24:18,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2023-08-30 11:24:18,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2023-08-30 11:24:18,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 45 remaining) [2023-08-30 11:24:18,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 11:24:18,132 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:24:18,137 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 11:24:18,138 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 11:24:18,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 11:24:18 BasicIcfg [2023-08-30 11:24:18,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 11:24:18,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 11:24:18,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 11:24:18,141 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 11:24:18,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:22:59" (3/4) ... [2023-08-30 11:24:18,144 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 11:24:18,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 11:24:18,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 11:24:18,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 11:24:18,149 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-08-30 11:24:18,149 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2023-08-30 11:24:18,157 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 11:24:18,157 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 11:24:18,158 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 11:24:18,158 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 11:24:18,187 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 11:24:18,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 11:24:18,188 INFO L158 Benchmark]: Toolchain (without parser) took 80043.59ms. Allocated memory was 100.7MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 78.6MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 8.4GB. Max. memory is 16.1GB. [2023-08-30 11:24:18,188 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 11:24:18,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.85ms. Allocated memory is still 100.7MB. Free memory was 78.2MB in the beginning and 66.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 11:24:18,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.59ms. Allocated memory is still 100.7MB. Free memory was 66.5MB in the beginning and 64.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 11:24:18,189 INFO L158 Benchmark]: Boogie Preprocessor took 51.90ms. Allocated memory is still 100.7MB. Free memory was 64.0MB in the beginning and 62.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 11:24:18,189 INFO L158 Benchmark]: RCFGBuilder took 735.24ms. Allocated memory is still 100.7MB. Free memory was 62.3MB in the beginning and 56.7MB in the end (delta: 5.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-08-30 11:24:18,189 INFO L158 Benchmark]: TraceAbstraction took 78851.32ms. Allocated memory was 100.7MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 56.2MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 8.3GB. Max. memory is 16.1GB. [2023-08-30 11:24:18,190 INFO L158 Benchmark]: Witness Printer took 46.06ms. Allocated memory is still 16.0GB. Free memory was 7.7GB in the beginning and 7.7GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 11:24:18,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.85ms. Allocated memory is still 100.7MB. Free memory was 78.2MB in the beginning and 66.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.59ms. Allocated memory is still 100.7MB. Free memory was 66.5MB in the beginning and 64.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.90ms. Allocated memory is still 100.7MB. Free memory was 64.0MB in the beginning and 62.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 735.24ms. Allocated memory is still 100.7MB. Free memory was 62.3MB in the beginning and 56.7MB in the end (delta: 5.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 78851.32ms. Allocated memory was 100.7MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 56.2MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 8.3GB. Max. memory is 16.1GB. * Witness Printer took 46.06ms. Allocated memory is still 16.0GB. Free memory was 7.7GB in the beginning and 7.7GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 173 PlacesBefore, 76 PlacesAfterwards, 158 TransitionsBefore, 60 TransitionsAfterwards, 4234 CoEnabledTransitionPairs, 7 FixpointIterations, 67 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 23542 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6443, independent: 6001, independent conditional: 0, independent unconditional: 6001, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1699, independent: 1633, independent conditional: 0, independent unconditional: 1633, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6443, independent: 4368, independent conditional: 0, independent unconditional: 4368, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 1699, unknown conditional: 0, unknown unconditional: 1699] , Statistics on independence cache: Total cache size (in pairs): 471, Positive cache size: 442, Positive conditional cache size: 0, Positive unconditional cache size: 442, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 245 locations, 45 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 78.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 71.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1052 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 985 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1673 IncrementalHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 11 mSDtfsCounter, 1673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=6, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 11:24:18,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE