./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:52:19,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:52:19,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:52:19,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:52:19,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:52:19,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:52:19,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:52:19,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:52:19,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:52:19,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:52:19,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:52:19,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:52:19,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:52:19,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:52:19,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:52:19,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:52:19,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:52:19,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:52:19,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:52:19,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:52:19,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:52:19,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:52:19,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:52:19,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:52:19,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:52:19,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:52:19,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:52:19,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:52:19,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:52:19,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:52:19,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:52:19,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:52:19,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:52:19,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:52:19,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:52:19,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:52:19,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:52:19,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:52:19,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:52:19,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:52:19,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:52:19,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:52:19,989 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:52:19,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:52:19,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:52:19,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:52:19,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:52:19,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:52:19,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:52:19,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:52:19,993 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:52:19,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:52:19,994 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:52:19,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:52:19,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:52:19,995 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:52:19,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:52:19,996 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:52:19,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:52:19,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:52:19,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:52:19,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:52:19,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:52:19,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:52:19,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:52:19,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:52:19,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:52:19,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:52:19,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:52:19,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:52:19,998 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:52:19,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:52:19,998 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:52:19,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:52:20,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:52:20,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:52:20,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:52:20,300 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:52:20,300 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:52:20,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-08-30 08:52:21,517 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:52:21,801 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:52:21,802 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-08-30 08:52:21,818 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77656503f/bbce38fac81e4cedab23a520488d1d4e/FLAG6f671ddf7 [2023-08-30 08:52:21,831 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77656503f/bbce38fac81e4cedab23a520488d1d4e [2023-08-30 08:52:21,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:52:21,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:52:21,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:52:21,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:52:21,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:52:21,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:52:21" (1/1) ... [2023-08-30 08:52:21,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ad02fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:21, skipping insertion in model container [2023-08-30 08:52:21,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:52:21" (1/1) ... [2023-08-30 08:52:21,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:52:21,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:52:22,282 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-08-30 08:52:22,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:52:22,307 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:52:22,360 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-08-30 08:52:22,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:52:22,478 WARN L667 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:52:22,483 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:52:22,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22 WrapperNode [2023-08-30 08:52:22,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:52:22,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:52:22,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:52:22,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:52:22,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,554 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 477 [2023-08-30 08:52:22,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:52:22,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:52:22,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:52:22,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:52:22,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:52:22,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:52:22,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:52:22,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:52:22,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (1/1) ... [2023-08-30 08:52:22,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:52:22,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:52:22,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:52:22,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:52:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-08-30 08:52:22,710 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-08-30 08:52:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:52:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:52:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 08:52:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 08:52:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-08-30 08:52:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:52:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-08-30 08:52:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:52:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:52:22,714 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:52:22,892 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:52:22,893 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:52:23,412 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:52:23,428 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:52:23,428 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-08-30 08:52:23,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:52:23 BoogieIcfgContainer [2023-08-30 08:52:23,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:52:23,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:52:23,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:52:23,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:52:23,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:52:21" (1/3) ... [2023-08-30 08:52:23,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3ea577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:52:23, skipping insertion in model container [2023-08-30 08:52:23,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:52:22" (2/3) ... [2023-08-30 08:52:23,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3ea577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:52:23, skipping insertion in model container [2023-08-30 08:52:23,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:52:23" (3/3) ... [2023-08-30 08:52:23,437 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-08-30 08:52:23,441 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:52:23,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:52:23,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-30 08:52:23,448 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:52:23,564 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 08:52:23,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 502 transitions, 1026 flow [2023-08-30 08:52:23,878 INFO L130 PetriNetUnfolder]: 109/1104 cut-off events. [2023-08-30 08:52:23,879 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 08:52:23,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 1104 events. 109/1104 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6720 event pairs, 0 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 581. Up to 16 conditions per place. [2023-08-30 08:52:23,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 502 transitions, 1026 flow [2023-08-30 08:52:23,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 458 places, 502 transitions, 1026 flow [2023-08-30 08:52:23,944 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:52:23,956 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 458 places, 502 transitions, 1026 flow [2023-08-30 08:52:23,958 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 458 places, 502 transitions, 1026 flow [2023-08-30 08:52:23,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 502 transitions, 1026 flow [2023-08-30 08:52:24,164 INFO L130 PetriNetUnfolder]: 109/1104 cut-off events. [2023-08-30 08:52:24,165 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 08:52:24,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 1104 events. 109/1104 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6720 event pairs, 0 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 581. Up to 16 conditions per place. [2023-08-30 08:52:24,256 INFO L119 LiptonReduction]: Number of co-enabled transitions 120780 [2023-08-30 08:52:54,279 WARN L222 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:53:03,982 WARN L222 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:53:20,773 WARN L222 SmtUtils]: Spent 12.20s on a formula simplification. DAG size of input: 222 DAG size of output: 220 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:53:26,879 WARN L222 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:53:42,889 WARN L222 SmtUtils]: Spent 16.01s on a formula simplification. DAG size of input: 222 DAG size of output: 220 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:53:51,921 WARN L222 SmtUtils]: Spent 9.03s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:54:21,523 WARN L222 SmtUtils]: Spent 29.59s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:54:53,795 WARN L222 SmtUtils]: Spent 32.27s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:55:22,268 WARN L222 SmtUtils]: Spent 28.47s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:55:50,552 WARN L222 SmtUtils]: Spent 28.28s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:55:50,565 INFO L134 LiptonReduction]: Checked pairs total: 331982 [2023-08-30 08:55:50,565 INFO L136 LiptonReduction]: Total number of compositions: 499 [2023-08-30 08:55:50,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:55:50,586 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;@68e77c93, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:55:50,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-08-30 08:55:50,591 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-30 08:55:50,591 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:55:50,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:55:50,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:55:50,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-30 08:55:50,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:55:50,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1671910418, now seen corresponding path program 1 times [2023-08-30 08:55:50,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:55:50,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407928134] [2023-08-30 08:55:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:55:50,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:55:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:55:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:55:50,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:55:50,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407928134] [2023-08-30 08:55:50,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407928134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:55:50,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:55:50,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:55:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002404044] [2023-08-30 08:55:50,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:55:51,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:55:51,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:55:51,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:55:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:55:51,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 1001 [2023-08-30 08:55:51,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 159 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:51,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:55:51,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 1001 [2023-08-30 08:55:51,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:55:59,694 INFO L130 PetriNetUnfolder]: 77295/115995 cut-off events. [2023-08-30 08:55:59,694 INFO L131 PetriNetUnfolder]: For 329/329 co-relation queries the response was YES. [2023-08-30 08:55:59,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225034 conditions, 115995 events. 77295/115995 cut-off events. For 329/329 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 869508 event pairs, 57562 based on Foata normal form. 2235/85105 useless extension candidates. Maximal degree in co-relation 218610. Up to 108860 conditions per place. [2023-08-30 08:56:00,251 INFO L137 encePairwiseOnDemand]: 986/1001 looper letters, 125 selfloop transitions, 1 changer transitions 0/143 dead transitions. [2023-08-30 08:56:00,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 143 transitions, 560 flow [2023-08-30 08:56:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:56:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:56:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2023-08-30 08:56:00,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2023-08-30 08:56:00,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1547 transitions. [2023-08-30 08:56:00,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1547 transitions. [2023-08-30 08:56:00,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:00,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1547 transitions. [2023-08-30 08:56:00,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 515.6666666666666) internal successors, (1547), 3 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:00,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:00,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:00,300 INFO L175 Difference]: Start difference. First operand has 131 places, 159 transitions, 340 flow. Second operand 3 states and 1547 transitions. [2023-08-30 08:56:00,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 143 transitions, 560 flow [2023-08-30 08:56:00,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 143 transitions, 560 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 08:56:00,309 INFO L231 Difference]: Finished difference. Result has 127 places, 143 transitions, 310 flow [2023-08-30 08:56:00,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1001, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=127, PETRI_TRANSITIONS=143} [2023-08-30 08:56:00,314 INFO L281 CegarLoopForPetriNet]: 131 programPoint places, -4 predicate places. [2023-08-30 08:56:00,314 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 143 transitions, 310 flow [2023-08-30 08:56:00,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:00,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:00,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:56:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:56:00,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-30 08:56:00,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:00,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1671910417, now seen corresponding path program 1 times [2023-08-30 08:56:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:00,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264910654] [2023-08-30 08:56:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:00,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:56:00,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:00,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264910654] [2023-08-30 08:56:00,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264910654] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:56:00,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:56:00,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:56:00,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975491560] [2023-08-30 08:56:00,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:56:00,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:56:00,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:56:00,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:56:00,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 1001 [2023-08-30 08:56:00,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 143 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:00,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:00,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 1001 [2023-08-30 08:56:00,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:02,314 INFO L130 PetriNetUnfolder]: 12682/19560 cut-off events. [2023-08-30 08:56:02,315 INFO L131 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2023-08-30 08:56:02,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38685 conditions, 19560 events. 12682/19560 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 126752 event pairs, 4369 based on Foata normal form. 0/14999 useless extension candidates. Maximal degree in co-relation 38677. Up to 10829 conditions per place. [2023-08-30 08:56:02,423 INFO L137 encePairwiseOnDemand]: 988/1001 looper letters, 183 selfloop transitions, 8 changer transitions 11/218 dead transitions. [2023-08-30 08:56:02,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 218 transitions, 868 flow [2023-08-30 08:56:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:56:02,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:56:02,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1616 transitions. [2023-08-30 08:56:02,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5381285381285381 [2023-08-30 08:56:02,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1616 transitions. [2023-08-30 08:56:02,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1616 transitions. [2023-08-30 08:56:02,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:02,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1616 transitions. [2023-08-30 08:56:02,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 538.6666666666666) internal successors, (1616), 3 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:02,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:02,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:02,439 INFO L175 Difference]: Start difference. First operand has 127 places, 143 transitions, 310 flow. Second operand 3 states and 1616 transitions. [2023-08-30 08:56:02,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 218 transitions, 868 flow [2023-08-30 08:56:02,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 218 transitions, 867 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:56:02,448 INFO L231 Difference]: Finished difference. Result has 126 places, 131 transitions, 313 flow [2023-08-30 08:56:02,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1001, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=126, PETRI_TRANSITIONS=131} [2023-08-30 08:56:02,449 INFO L281 CegarLoopForPetriNet]: 131 programPoint places, -5 predicate places. [2023-08-30 08:56:02,449 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 131 transitions, 313 flow [2023-08-30 08:56:02,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:02,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:02,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:56:02,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:56:02,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-30 08:56:02,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:02,452 INFO L85 PathProgramCache]: Analyzing trace with hash 853675272, now seen corresponding path program 1 times [2023-08-30 08:56:02,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:02,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650041119] [2023-08-30 08:56:02,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:02,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:02,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:56:02,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:02,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650041119] [2023-08-30 08:56:02,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650041119] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:56:02,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:56:02,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:56:02,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991961613] [2023-08-30 08:56:02,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:56:02,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:56:02,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:56:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:56:02,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 1001 [2023-08-30 08:56:02,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 131 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:02,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:02,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 1001 [2023-08-30 08:56:02,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:05,943 INFO L130 PetriNetUnfolder]: 23390/36095 cut-off events. [2023-08-30 08:56:05,944 INFO L131 PetriNetUnfolder]: For 6096/6096 co-relation queries the response was YES. [2023-08-30 08:56:06,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74673 conditions, 36095 events. 23390/36095 cut-off events. For 6096/6096 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 251459 event pairs, 9848 based on Foata normal form. 0/29734 useless extension candidates. Maximal degree in co-relation 74663. Up to 18462 conditions per place. [2023-08-30 08:56:06,135 INFO L137 encePairwiseOnDemand]: 996/1001 looper letters, 192 selfloop transitions, 2 changer transitions 0/210 dead transitions. [2023-08-30 08:56:06,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 210 transitions, 883 flow [2023-08-30 08:56:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:56:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:56:06,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1634 transitions. [2023-08-30 08:56:06,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441225441225441 [2023-08-30 08:56:06,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1634 transitions. [2023-08-30 08:56:06,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1634 transitions. [2023-08-30 08:56:06,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:06,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1634 transitions. [2023-08-30 08:56:06,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.6666666666666) internal successors, (1634), 3 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:06,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:06,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:06,148 INFO L175 Difference]: Start difference. First operand has 126 places, 131 transitions, 313 flow. Second operand 3 states and 1634 transitions. [2023-08-30 08:56:06,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 210 transitions, 883 flow [2023-08-30 08:56:06,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 210 transitions, 869 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:56:06,156 INFO L231 Difference]: Finished difference. Result has 121 places, 132 transitions, 321 flow [2023-08-30 08:56:06,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1001, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=121, PETRI_TRANSITIONS=132} [2023-08-30 08:56:06,157 INFO L281 CegarLoopForPetriNet]: 131 programPoint places, -10 predicate places. [2023-08-30 08:56:06,157 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 132 transitions, 321 flow [2023-08-30 08:56:06,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:06,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:06,158 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:56:06,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:56:06,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-30 08:56:06,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:06,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1341155748, now seen corresponding path program 1 times [2023-08-30 08:56:06,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:06,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408560076] [2023-08-30 08:56:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 08:56:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408560076] [2023-08-30 08:56:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408560076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:56:06,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:56:06,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:56:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062492624] [2023-08-30 08:56:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:56:06,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:56:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:56:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:56:06,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 1001 [2023-08-30 08:56:06,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 132 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:06,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:06,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 1001 [2023-08-30 08:56:06,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:09,154 INFO L130 PetriNetUnfolder]: 22944/35319 cut-off events. [2023-08-30 08:56:09,154 INFO L131 PetriNetUnfolder]: For 4074/4074 co-relation queries the response was YES. [2023-08-30 08:56:09,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72995 conditions, 35319 events. 22944/35319 cut-off events. For 4074/4074 co-relation queries the response was YES. Maximal size of possible extension queue 852. Compared 245520 event pairs, 2924 based on Foata normal form. 0/29491 useless extension candidates. Maximal degree in co-relation 72984. Up to 30828 conditions per place. [2023-08-30 08:56:09,256 INFO L137 encePairwiseOnDemand]: 997/1001 looper letters, 164 selfloop transitions, 4 changer transitions 0/184 dead transitions. [2023-08-30 08:56:09,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 184 transitions, 777 flow [2023-08-30 08:56:09,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:56:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:56:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1602 transitions. [2023-08-30 08:56:09,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5334665334665335 [2023-08-30 08:56:09,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1602 transitions. [2023-08-30 08:56:09,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1602 transitions. [2023-08-30 08:56:09,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:09,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1602 transitions. [2023-08-30 08:56:09,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:09,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:09,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:09,267 INFO L175 Difference]: Start difference. First operand has 121 places, 132 transitions, 321 flow. Second operand 3 states and 1602 transitions. [2023-08-30 08:56:09,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 184 transitions, 777 flow [2023-08-30 08:56:09,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 184 transitions, 775 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:56:09,271 INFO L231 Difference]: Finished difference. Result has 122 places, 132 transitions, 331 flow [2023-08-30 08:56:09,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1001, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=122, PETRI_TRANSITIONS=132} [2023-08-30 08:56:09,272 INFO L281 CegarLoopForPetriNet]: 131 programPoint places, -9 predicate places. [2023-08-30 08:56:09,272 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 132 transitions, 331 flow [2023-08-30 08:56:09,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:09,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:09,273 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:56:09,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:56:09,273 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-30 08:56:09,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:09,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1341155747, now seen corresponding path program 1 times [2023-08-30 08:56:09,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:09,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314605766] [2023-08-30 08:56:09,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:09,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:56:09,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:09,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314605766] [2023-08-30 08:56:09,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314605766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:56:09,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:56:09,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:56:09,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129434030] [2023-08-30 08:56:09,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:56:09,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:56:09,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:56:09,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:56:09,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 1001 [2023-08-30 08:56:09,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 132 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:09,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:09,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 1001 [2023-08-30 08:56:09,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:12,466 INFO L130 PetriNetUnfolder]: 22498/34478 cut-off events. [2023-08-30 08:56:12,467 INFO L131 PetriNetUnfolder]: For 5721/5721 co-relation queries the response was YES. [2023-08-30 08:56:12,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72535 conditions, 34478 events. 22498/34478 cut-off events. For 5721/5721 co-relation queries the response was YES. Maximal size of possible extension queue 836. Compared 236616 event pairs, 3290 based on Foata normal form. 224/29168 useless extension candidates. Maximal degree in co-relation 72524. Up to 32084 conditions per place. [2023-08-30 08:56:12,617 INFO L137 encePairwiseOnDemand]: 999/1001 looper letters, 163 selfloop transitions, 1 changer transitions 4/183 dead transitions. [2023-08-30 08:56:12,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 183 transitions, 783 flow [2023-08-30 08:56:12,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:56:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:56:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1603 transitions. [2023-08-30 08:56:12,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5337995337995338 [2023-08-30 08:56:12,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1603 transitions. [2023-08-30 08:56:12,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1603 transitions. [2023-08-30 08:56:12,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:12,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1603 transitions. [2023-08-30 08:56:12,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.3333333333334) internal successors, (1603), 3 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:12,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:12,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1001.0) internal successors, (4004), 4 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:12,629 INFO L175 Difference]: Start difference. First operand has 122 places, 132 transitions, 331 flow. Second operand 3 states and 1603 transitions. [2023-08-30 08:56:12,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 183 transitions, 783 flow [2023-08-30 08:56:12,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 183 transitions, 779 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:56:12,637 INFO L231 Difference]: Finished difference. Result has 122 places, 130 transitions, 321 flow [2023-08-30 08:56:12,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1001, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=122, PETRI_TRANSITIONS=130} [2023-08-30 08:56:12,638 INFO L281 CegarLoopForPetriNet]: 131 programPoint places, -9 predicate places. [2023-08-30 08:56:12,638 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 130 transitions, 321 flow [2023-08-30 08:56:12,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:12,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:12,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:56:12,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:56:12,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-30 08:56:12,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:12,640 INFO L85 PathProgramCache]: Analyzing trace with hash -734629207, now seen corresponding path program 1 times [2023-08-30 08:56:12,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:12,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005749163] [2023-08-30 08:56:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:56:12,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005749163] [2023-08-30 08:56:12,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005749163] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:56:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862235709] [2023-08-30 08:56:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:12,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:56:12,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:56:12,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 08:56:12,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 08:56:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:12,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 08:56:12,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:56:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:56:12,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:56:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:56:13,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862235709] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:56:13,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:56:13,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-08-30 08:56:13,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890237628] [2023-08-30 08:56:13,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:56:13,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:56:13,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:13,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:56:13,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:56:13,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 1001 [2023-08-30 08:56:13,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 321 flow. Second operand has 4 states, 4 states have (on average 468.75) internal successors, (1875), 4 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:13,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:13,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 1001 [2023-08-30 08:56:13,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:13,345 INFO L130 PetriNetUnfolder]: 237/471 cut-off events. [2023-08-30 08:56:13,345 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2023-08-30 08:56:13,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 471 events. 237/471 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2247 event pairs, 0 based on Foata normal form. 44/453 useless extension candidates. Maximal degree in co-relation 1030. Up to 400 conditions per place. [2023-08-30 08:56:13,346 INFO L137 encePairwiseOnDemand]: 998/1001 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2023-08-30 08:56:13,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 76 transitions, 342 flow [2023-08-30 08:56:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:56:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:56:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1928 transitions. [2023-08-30 08:56:13,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48151848151848153 [2023-08-30 08:56:13,350 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1928 transitions. [2023-08-30 08:56:13,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1928 transitions. [2023-08-30 08:56:13,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:13,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1928 transitions. [2023-08-30 08:56:13,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 482.0) internal successors, (1928), 4 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:13,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1001.0) internal successors, (5005), 5 states have internal predecessors, (5005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:13,358 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1001.0) internal successors, (5005), 5 states have internal predecessors, (5005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:13,358 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 321 flow. Second operand 4 states and 1928 transitions. [2023-08-30 08:56:13,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 76 transitions, 342 flow [2023-08-30 08:56:13,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:56:13,359 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-30 08:56:13,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1001, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-30 08:56:13,360 INFO L281 CegarLoopForPetriNet]: 131 programPoint places, -85 predicate places. [2023-08-30 08:56:13,360 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-30 08:56:13,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 468.75) internal successors, (1875), 4 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:13,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-08-30 08:56:13,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-08-30 08:56:13,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-08-30 08:56:13,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-08-30 08:56:13,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-08-30 08:56:13,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-08-30 08:56:13,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-08-30 08:56:13,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-08-30 08:56:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-08-30 08:56:13,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-08-30 08:56:13,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 08:56:13,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-30 08:56:13,589 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 08:56:13,590 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-30 08:56:13,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 502 transitions, 1026 flow [2023-08-30 08:56:13,707 INFO L130 PetriNetUnfolder]: 109/1104 cut-off events. [2023-08-30 08:56:13,707 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 08:56:13,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 1104 events. 109/1104 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6720 event pairs, 0 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 581. Up to 16 conditions per place. [2023-08-30 08:56:13,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 502 transitions, 1026 flow [2023-08-30 08:56:13,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 458 places, 502 transitions, 1026 flow [2023-08-30 08:56:13,726 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:56:13,727 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 458 places, 502 transitions, 1026 flow [2023-08-30 08:56:13,727 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 458 places, 502 transitions, 1026 flow [2023-08-30 08:56:13,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 502 transitions, 1026 flow [2023-08-30 08:56:13,861 INFO L130 PetriNetUnfolder]: 109/1104 cut-off events. [2023-08-30 08:56:13,861 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 08:56:13,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 1104 events. 109/1104 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6720 event pairs, 0 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 581. Up to 16 conditions per place. [2023-08-30 08:56:13,905 INFO L119 LiptonReduction]: Number of co-enabled transitions 120780 [2023-08-30 08:56:42,253 WARN L222 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 202 DAG size of output: 197 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:56:52,181 WARN L222 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 202 DAG size of output: 197 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:58:01,606 WARN L222 SmtUtils]: Spent 1.11m on a formula simplification. DAG size of input: 285 DAG size of output: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:58:31,137 WARN L222 SmtUtils]: Spent 29.53s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 08:59:33,876 WARN L222 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 289 DAG size of output: 270 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:00:01,639 WARN L222 SmtUtils]: Spent 27.76s on a formula simplification that was a NOOP. DAG size: 266 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:00:01,653 INFO L134 LiptonReduction]: Checked pairs total: 285972 [2023-08-30 09:00:01,653 INFO L136 LiptonReduction]: Total number of compositions: 485 [2023-08-30 09:00:01,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-30 09:00:01,656 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;@68e77c93, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:00:01,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-30 09:00:01,663 INFO L130 PetriNetUnfolder]: 8/68 cut-off events. [2023-08-30 09:00:01,663 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:00:01,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:00:01,663 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-08-30 09:00:01,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 09:00:01,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:00:01,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1124635329, now seen corresponding path program 1 times [2023-08-30 09:00:01,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:00:01,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693596038] [2023-08-30 09:00:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:00:01,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:00:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:00:01,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 09:00:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:00:01,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 09:00:01,755 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 09:00:01,755 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-30 09:00:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-30 09:00:01,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 09:00:01,756 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 09:00:01,756 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2023-08-30 09:00:01,757 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 09:00:01,757 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 09:00:01,836 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-30 09:00:01,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 692 places, 761 transitions, 1570 flow [2023-08-30 09:00:02,552 INFO L130 PetriNetUnfolder]: 384/3654 cut-off events. [2023-08-30 09:00:02,553 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 09:00:02,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3751 conditions, 3654 events. 384/3654 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 29603 event pairs, 2 based on Foata normal form. 0/3095 useless extension candidates. Maximal degree in co-relation 2035. Up to 64 conditions per place. [2023-08-30 09:00:02,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 692 places, 761 transitions, 1570 flow [2023-08-30 09:00:02,697 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 692 places, 761 transitions, 1570 flow [2023-08-30 09:00:02,697 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:00:02,697 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 692 places, 761 transitions, 1570 flow [2023-08-30 09:00:02,697 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 692 places, 761 transitions, 1570 flow [2023-08-30 09:00:02,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 692 places, 761 transitions, 1570 flow [2023-08-30 09:00:03,250 INFO L130 PetriNetUnfolder]: 384/3654 cut-off events. [2023-08-30 09:00:03,250 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 09:00:03,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3751 conditions, 3654 events. 384/3654 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 29603 event pairs, 2 based on Foata normal form. 0/3095 useless extension candidates. Maximal degree in co-relation 2035. Up to 64 conditions per place. [2023-08-30 09:00:03,619 INFO L119 LiptonReduction]: Number of co-enabled transitions 374616 [2023-08-30 09:01:06,701 WARN L222 SmtUtils]: Spent 43.39s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:01:27,445 WARN L222 SmtUtils]: Spent 20.74s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:02:12,666 WARN L222 SmtUtils]: Spent 45.22s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:02:32,107 WARN L222 SmtUtils]: Spent 19.44s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:02:49,845 WARN L222 SmtUtils]: Spent 16.41s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:03:07,738 WARN L222 SmtUtils]: Spent 17.89s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:03:24,171 WARN L222 SmtUtils]: Spent 16.43s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:03:47,610 WARN L222 SmtUtils]: Spent 23.44s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:04:27,269 WARN L222 SmtUtils]: Spent 39.64s on a formula simplification that was a NOOP. DAG size: 273 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:04:59,169 WARN L222 SmtUtils]: Spent 31.90s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:05:43,924 WARN L222 SmtUtils]: Spent 44.75s on a formula simplification that was a NOOP. DAG size: 273 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:06:17,895 WARN L222 SmtUtils]: Spent 33.97s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:06:17,914 INFO L134 LiptonReduction]: Checked pairs total: 917871 [2023-08-30 09:06:17,914 INFO L136 LiptonReduction]: Total number of compositions: 729 [2023-08-30 09:06:17,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:06:17,916 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;@68e77c93, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:06:17,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-30 09:06:17,918 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-08-30 09:06:17,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:06:17,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:06:17,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:06:17,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 09:06:17,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:06:17,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1276640269, now seen corresponding path program 1 times [2023-08-30 09:06:17,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:06:17,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106100251] [2023-08-30 09:06:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:06:17,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:06:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:06:17,957 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 09:06:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:06:17,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106100251] [2023-08-30 09:06:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106100251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:06:17,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:06:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:06:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581330128] [2023-08-30 09:06:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:06:17,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:06:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:06:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:06:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:06:17,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 1490 [2023-08-30 09:06:17,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 249 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 718.0) internal successors, (2154), 3 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:06:17,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:06:17,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 1490 [2023-08-30 09:06:17,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15