./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:11:53,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:11:53,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:11:53,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:11:53,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:11:53,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:11:53,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:11:53,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:11:53,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:11:53,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:11:53,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:11:53,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:11:53,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:11:53,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:11:53,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:11:53,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:11:53,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:11:53,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:11:53,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:11:53,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:11:53,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:11:53,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:11:53,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:11:53,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:11:53,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:11:53,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:11:53,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:11:53,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:11:53,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:11:53,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:11:53,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:11:53,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:11:53,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:11:53,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:11:53,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:11:53,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:11:53,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:11:53,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:11:53,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:11:53,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:11:53,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:11:53,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:11:53,646 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:11:53,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:11:53,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:11:53,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:11:53,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:11:53,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:11:53,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:11:53,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:11:53,650 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:11:53,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:11:53,651 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:11:53,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:11:53,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:11:53,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:11:53,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:11:53,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:11:53,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:11:53,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:11:53,653 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:11:53,653 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:11:53,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:11:53,654 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:11:53,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:11:53,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:11:53,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:11:53,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:11:53,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:11:53,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:11:53,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:11:53,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:11:53,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:11:53,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:11:53,656 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:11:53,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:11:53,656 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:11:53,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:11:53,657 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:11:53,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:11:53,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:11:53,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:11:53,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:11:53,978 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:11:53,979 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:11:53,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.i [2023-09-01 06:11:55,221 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:11:55,533 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:11:55,535 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.i [2023-09-01 06:11:55,547 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928c1fd5f/5c26e32979674ebcae58f498910b92ad/FLAG373c1ddb0 [2023-09-01 06:11:55,562 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928c1fd5f/5c26e32979674ebcae58f498910b92ad [2023-09-01 06:11:55,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:11:55,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:11:55,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:11:55,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:11:55,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:11:55,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:11:55" (1/1) ... [2023-09-01 06:11:55,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6877b61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:55, skipping insertion in model container [2023-09-01 06:11:55,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:11:55" (1/1) ... [2023-09-01 06:11:55,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:11:55,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:11:55,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:11:56,013 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:11:56,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:11:56,142 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:11:56,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56 WrapperNode [2023-09-01 06:11:56,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:11:56,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:11:56,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:11:56,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:11:56,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,214 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-09-01 06:11:56,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:11:56,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:11:56,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:11:56,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:11:56,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,271 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:11:56,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:11:56,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:11:56,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:11:56,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (1/1) ... [2023-09-01 06:11:56,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:11:56,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:11:56,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 06:11:56,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 06:11:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:11:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:11:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:11:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:11:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:11:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:11:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:11:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:11:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:11:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:11:56,336 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:11:56,488 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:11:56,506 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:11:56,731 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:11:56,737 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:11:56,737 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-09-01 06:11:56,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:11:56 BoogieIcfgContainer [2023-09-01 06:11:56,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:11:56,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:11:56,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:11:56,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:11:56,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:11:55" (1/3) ... [2023-09-01 06:11:56,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14643022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:11:56, skipping insertion in model container [2023-09-01 06:11:56,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:11:56" (2/3) ... [2023-09-01 06:11:56,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14643022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:11:56, skipping insertion in model container [2023-09-01 06:11:56,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:11:56" (3/3) ... [2023-09-01 06:11:56,746 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2023-09-01 06:11:56,752 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:11:56,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:11:56,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 06:11:56,761 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:11:56,809 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:11:56,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 82 transitions, 169 flow [2023-09-01 06:11:56,883 INFO L130 PetriNetUnfolder]: 4/81 cut-off events. [2023-09-01 06:11:56,884 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:11:56,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 4/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-09-01 06:11:56,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 82 transitions, 169 flow [2023-09-01 06:11:56,908 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 81 transitions, 165 flow [2023-09-01 06:11:56,911 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:11:56,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 81 transitions, 165 flow [2023-09-01 06:11:56,922 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 81 transitions, 165 flow [2023-09-01 06:11:56,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 81 transitions, 165 flow [2023-09-01 06:11:56,943 INFO L130 PetriNetUnfolder]: 4/81 cut-off events. [2023-09-01 06:11:56,943 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:11:56,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 4/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-09-01 06:11:56,945 INFO L119 LiptonReduction]: Number of co-enabled transitions 988 [2023-09-01 06:11:58,788 INFO L134 LiptonReduction]: Checked pairs total: 1232 [2023-09-01 06:11:58,788 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-09-01 06:11:58,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:11:58,806 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;@7ab4ba62, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:11:58,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-09-01 06:11:58,808 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-09-01 06:11:58,808 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:11:58,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:11:58,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 06:11:58,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:11:58,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:11:58,814 INFO L85 PathProgramCache]: Analyzing trace with hash 10024, now seen corresponding path program 1 times [2023-09-01 06:11:58,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:11:58,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176421527] [2023-09-01 06:11:58,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:11:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:11:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:11:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:11:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:11:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176421527] [2023-09-01 06:11:58,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176421527] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:11:58,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:11:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:11:58,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398102154] [2023-09-01 06:11:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:11:58,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:11:59,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:11:59,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:11:59,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:11:59,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2023-09-01 06:11:59,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:11:59,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2023-09-01 06:11:59,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:11:59,094 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-09-01 06:11:59,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:11:59,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 284 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-09-01 06:11:59,096 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-09-01 06:11:59,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-09-01 06:11:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:11:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:11:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-09-01 06:11:59,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020576131687243 [2023-09-01 06:11:59,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-09-01 06:11:59,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-09-01 06:11:59,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:11:59,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-09-01 06:11:59,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,121 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 244 transitions. [2023-09-01 06:11:59,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-09-01 06:11:59,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:11:59,125 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-09-01 06:11:59,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-09-01 06:11:59,129 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-09-01 06:11:59,130 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-09-01 06:11:59,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:11:59,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:11:59,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:11:59,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:11:59,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:11:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash 311623, now seen corresponding path program 1 times [2023-09-01 06:11:59,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:11:59,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976334863] [2023-09-01 06:11:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:11:59,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:11:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:11:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:11:59,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:11:59,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976334863] [2023-09-01 06:11:59,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976334863] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:11:59,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788687612] [2023-09-01 06:11:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:11:59,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:11:59,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:11:59,195 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) [2023-09-01 06:11:59,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-09-01 06:11:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:11:59,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 06:11:59,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:11:59,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:11:59,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 06:11:59,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788687612] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:11:59,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 06:11:59,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-09-01 06:11:59,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341062795] [2023-09-01 06:11:59,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:11:59,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:11:59,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:11:59,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:11:59,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:11:59,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2023-09-01 06:11:59,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:11:59,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2023-09-01 06:11:59,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:11:59,361 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-09-01 06:11:59,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:11:59,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 88 conditions per place. [2023-09-01 06:11:59,362 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 15 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-09-01 06:11:59,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 80 flow [2023-09-01 06:11:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:11:59,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:11:59,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2023-09-01 06:11:59,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4845679012345679 [2023-09-01 06:11:59,372 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2023-09-01 06:11:59,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2023-09-01 06:11:59,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:11:59,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2023-09-01 06:11:59,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,382 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,382 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 4 states and 314 transitions. [2023-09-01 06:11:59,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 80 flow [2023-09-01 06:11:59,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 06:11:59,383 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 46 flow [2023-09-01 06:11:59,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-09-01 06:11:59,397 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2023-09-01 06:11:59,397 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 46 flow [2023-09-01 06:11:59,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:11:59,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:11:59,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-09-01 06:11:59,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:11:59,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:11:59,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:11:59,605 INFO L85 PathProgramCache]: Analyzing trace with hash 694699110, now seen corresponding path program 1 times [2023-09-01 06:11:59,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:11:59,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155596874] [2023-09-01 06:11:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:11:59,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:11:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:11:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:11:59,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:11:59,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155596874] [2023-09-01 06:11:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155596874] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:11:59,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186518613] [2023-09-01 06:11:59,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:11:59,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:11:59,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:11:59,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 06:11:59,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-01 06:11:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:11:59,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 06:11:59,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:11:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:11:59,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 06:11:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:11:59,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186518613] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 06:11:59,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 06:11:59,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-09-01 06:11:59,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962090618] [2023-09-01 06:11:59,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 06:11:59,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:11:59,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:11:59,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:11:59,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:11:59,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-09-01 06:11:59,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 46 flow. Second operand has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:11:59,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-09-01 06:11:59,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:11:59,882 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-09-01 06:11:59,882 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:11:59,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 187. Up to 89 conditions per place. [2023-09-01 06:11:59,883 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-09-01 06:11:59,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 98 flow [2023-09-01 06:11:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:11:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:11:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2023-09-01 06:11:59,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742798353909465 [2023-09-01 06:11:59,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 461 transitions. [2023-09-01 06:11:59,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 461 transitions. [2023-09-01 06:11:59,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:11:59,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 461 transitions. [2023-09-01 06:11:59,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,893 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,893 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 46 flow. Second operand 6 states and 461 transitions. [2023-09-01 06:11:59,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 98 flow [2023-09-01 06:11:59,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:11:59,894 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-09-01 06:11:59,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-09-01 06:11:59,895 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-09-01 06:11:59,895 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-09-01 06:11:59,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:11:59,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:11:59,896 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-09-01 06:11:59,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-01 06:12:00,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-09-01 06:12:00,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:00,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:00,103 INFO L85 PathProgramCache]: Analyzing trace with hash 964747045, now seen corresponding path program 2 times [2023-09-01 06:12:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:00,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646234420] [2023-09-01 06:12:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:00,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:00,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:00,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646234420] [2023-09-01 06:12:00,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646234420] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:12:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42650306] [2023-09-01 06:12:00,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 06:12:00,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:00,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:00,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 06:12:00,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-01 06:12:00,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-01 06:12:00,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 06:12:00,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2023-09-01 06:12:00,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:12:00,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-09-01 06:12:00,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-01 06:12:00,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-09-01 06:12:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-01 06:12:00,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 06:12:00,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42650306] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 06:12:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-09-01 06:12:00,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941464712] [2023-09-01 06:12:00,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:00,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:12:00,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:00,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:12:00,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-09-01 06:12:00,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 162 [2023-09-01 06:12:00,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:00,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:00,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 162 [2023-09-01 06:12:00,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:00,579 INFO L130 PetriNetUnfolder]: 21/60 cut-off events. [2023-09-01 06:12:00,579 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 06:12:00,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 60 events. 21/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 147 event pairs, 6 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 133. Up to 41 conditions per place. [2023-09-01 06:12:00,581 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 20 selfloop transitions, 5 changer transitions 4/29 dead transitions. [2023-09-01 06:12:00,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 155 flow [2023-09-01 06:12:00,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:12:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:12:00,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2023-09-01 06:12:00,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49228395061728397 [2023-09-01 06:12:00,584 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2023-09-01 06:12:00,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2023-09-01 06:12:00,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:00,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2023-09-01 06:12:00,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:00,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:00,590 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:00,590 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 4 states and 319 transitions. [2023-09-01 06:12:00,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 155 flow [2023-09-01 06:12:00,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 141 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:00,593 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 99 flow [2023-09-01 06:12:00,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-09-01 06:12:00,594 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 12 predicate places. [2023-09-01 06:12:00,595 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 99 flow [2023-09-01 06:12:00,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:00,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:00,596 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:00,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-01 06:12:00,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:00,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:00,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1171948448, now seen corresponding path program 1 times [2023-09-01 06:12:00,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:00,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732445251] [2023-09-01 06:12:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:00,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:00,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:00,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732445251] [2023-09-01 06:12:00,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732445251] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:12:00,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439941520] [2023-09-01 06:12:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:00,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:00,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:00,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 06:12:00,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-01 06:12:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:01,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-01 06:12:01,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:12:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:01,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 06:12:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:01,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439941520] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 06:12:01,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 06:12:01,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-09-01 06:12:01,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109475499] [2023-09-01 06:12:01,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 06:12:01,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 06:12:01,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:01,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 06:12:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-09-01 06:12:01,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-09-01 06:12:01,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 99 flow. Second operand has 13 states, 13 states have (on average 74.53846153846153) internal successors, (969), 13 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:01,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:01,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-09-01 06:12:01,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:01,233 INFO L130 PetriNetUnfolder]: 17/58 cut-off events. [2023-09-01 06:12:01,233 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-09-01 06:12:01,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 58 events. 17/58 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 117 event pairs, 14 based on Foata normal form. 6/60 useless extension candidates. Maximal degree in co-relation 167. Up to 49 conditions per place. [2023-09-01 06:12:01,235 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 17 selfloop transitions, 11 changer transitions 0/28 dead transitions. [2023-09-01 06:12:01,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 28 transitions, 191 flow [2023-09-01 06:12:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 06:12:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 06:12:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 908 transitions. [2023-09-01 06:12:01,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4670781893004115 [2023-09-01 06:12:01,239 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 908 transitions. [2023-09-01 06:12:01,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 908 transitions. [2023-09-01 06:12:01,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:01,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 908 transitions. [2023-09-01 06:12:01,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 75.66666666666667) internal successors, (908), 12 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:01,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 162.0) internal successors, (2106), 13 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:01,249 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 162.0) internal successors, (2106), 13 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:01,249 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 99 flow. Second operand 12 states and 908 transitions. [2023-09-01 06:12:01,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 28 transitions, 191 flow [2023-09-01 06:12:01,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 28 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:01,253 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 179 flow [2023-09-01 06:12:01,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=179, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2023-09-01 06:12:01,256 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-09-01 06:12:01,256 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 179 flow [2023-09-01 06:12:01,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 74.53846153846153) internal successors, (969), 13 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:01,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:01,258 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:01,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-01 06:12:01,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:01,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:01,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:01,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1295549060, now seen corresponding path program 2 times [2023-09-01 06:12:01,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:01,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967343459] [2023-09-01 06:12:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:01,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:01,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:01,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967343459] [2023-09-01 06:12:01,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967343459] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:01,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:01,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:01,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838465476] [2023-09-01 06:12:01,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:01,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:01,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:01,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:01,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:01,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2023-09-01 06:12:01,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:01,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:01,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2023-09-01 06:12:01,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:02,074 INFO L130 PetriNetUnfolder]: 16/55 cut-off events. [2023-09-01 06:12:02,075 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-09-01 06:12:02,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 55 events. 16/55 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 109 event pairs, 2 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 173. Up to 17 conditions per place. [2023-09-01 06:12:02,076 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 26 selfloop transitions, 7 changer transitions 5/38 dead transitions. [2023-09-01 06:12:02,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 277 flow [2023-09-01 06:12:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:12:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:12:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 492 transitions. [2023-09-01 06:12:02,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43386243386243384 [2023-09-01 06:12:02,078 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 492 transitions. [2023-09-01 06:12:02,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 492 transitions. [2023-09-01 06:12:02,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:02,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 492 transitions. [2023-09-01 06:12:02,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,082 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,082 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 179 flow. Second operand 7 states and 492 transitions. [2023-09-01 06:12:02,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 277 flow [2023-09-01 06:12:02,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 229 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-09-01 06:12:02,085 INFO L231 Difference]: Finished difference. Result has 49 places, 27 transitions, 139 flow [2023-09-01 06:12:02,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=139, PETRI_PLACES=49, PETRI_TRANSITIONS=27} [2023-09-01 06:12:02,086 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-09-01 06:12:02,086 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 27 transitions, 139 flow [2023-09-01 06:12:02,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:02,087 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:02,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:12:02,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:02,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1265162239, now seen corresponding path program 1 times [2023-09-01 06:12:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:02,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593855422] [2023-09-01 06:12:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:02,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:02,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:02,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593855422] [2023-09-01 06:12:02,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593855422] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:02,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:02,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:02,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080076266] [2023-09-01 06:12:02,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:02,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:02,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:02,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:02,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2023-09-01 06:12:02,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 27 transitions, 139 flow. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:02,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2023-09-01 06:12:02,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:02,576 INFO L130 PetriNetUnfolder]: 13/48 cut-off events. [2023-09-01 06:12:02,576 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2023-09-01 06:12:02,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 48 events. 13/48 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 2 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2023-09-01 06:12:02,577 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 21 selfloop transitions, 4 changer transitions 9/34 dead transitions. [2023-09-01 06:12:02,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 34 transitions, 217 flow [2023-09-01 06:12:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:12:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:12:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 488 transitions. [2023-09-01 06:12:02,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43033509700176364 [2023-09-01 06:12:02,580 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 488 transitions. [2023-09-01 06:12:02,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 488 transitions. [2023-09-01 06:12:02,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:02,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 488 transitions. [2023-09-01 06:12:02,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,584 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,584 INFO L175 Difference]: Start difference. First operand has 49 places, 27 transitions, 139 flow. Second operand 7 states and 488 transitions. [2023-09-01 06:12:02,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 34 transitions, 217 flow [2023-09-01 06:12:02,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 34 transitions, 204 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 06:12:02,586 INFO L231 Difference]: Finished difference. Result has 49 places, 23 transitions, 119 flow [2023-09-01 06:12:02,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=49, PETRI_TRANSITIONS=23} [2023-09-01 06:12:02,587 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-09-01 06:12:02,587 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 23 transitions, 119 flow [2023-09-01 06:12:02,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:02,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:02,587 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:02,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:12:02,588 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:02,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:02,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1264274776, now seen corresponding path program 1 times [2023-09-01 06:12:02,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:02,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720460085] [2023-09-01 06:12:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:02,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:02,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:02,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720460085] [2023-09-01 06:12:02,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720460085] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:02,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:02,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:02,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260176126] [2023-09-01 06:12:02,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:02,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:02,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:03,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2023-09-01 06:12:03,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 23 transitions, 119 flow. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:03,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2023-09-01 06:12:03,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:03,135 INFO L130 PetriNetUnfolder]: 8/37 cut-off events. [2023-09-01 06:12:03,135 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2023-09-01 06:12:03,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 37 events. 8/37 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 3 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2023-09-01 06:12:03,135 INFO L137 encePairwiseOnDemand]: 156/162 looper letters, 20 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2023-09-01 06:12:03,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 29 transitions, 201 flow [2023-09-01 06:12:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:12:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:12:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 548 transitions. [2023-09-01 06:12:03,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4228395061728395 [2023-09-01 06:12:03,137 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 548 transitions. [2023-09-01 06:12:03,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 548 transitions. [2023-09-01 06:12:03,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:03,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 548 transitions. [2023-09-01 06:12:03,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,141 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,142 INFO L175 Difference]: Start difference. First operand has 49 places, 23 transitions, 119 flow. Second operand 8 states and 548 transitions. [2023-09-01 06:12:03,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 29 transitions, 201 flow [2023-09-01 06:12:03,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 29 transitions, 189 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:12:03,144 INFO L231 Difference]: Finished difference. Result has 48 places, 27 transitions, 155 flow [2023-09-01 06:12:03,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=155, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2023-09-01 06:12:03,144 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-09-01 06:12:03,145 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 155 flow [2023-09-01 06:12:03,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:03,145 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:03,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 06:12:03,146 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:03,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:03,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1264260859, now seen corresponding path program 1 times [2023-09-01 06:12:03,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:03,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496745627] [2023-09-01 06:12:03,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:03,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:03,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496745627] [2023-09-01 06:12:03,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496745627] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:03,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:03,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:03,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796166554] [2023-09-01 06:12:03,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:03,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:03,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:03,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:03,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:03,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-09-01 06:12:03,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 27 transitions, 155 flow. Second operand has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:03,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-09-01 06:12:03,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:03,571 INFO L130 PetriNetUnfolder]: 5/32 cut-off events. [2023-09-01 06:12:03,572 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2023-09-01 06:12:03,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 32 events. 5/32 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 106. Up to 15 conditions per place. [2023-09-01 06:12:03,572 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 17 selfloop transitions, 4 changer transitions 6/27 dead transitions. [2023-09-01 06:12:03,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 27 transitions, 199 flow [2023-09-01 06:12:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:12:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:12:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 553 transitions. [2023-09-01 06:12:03,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42669753086419754 [2023-09-01 06:12:03,575 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 553 transitions. [2023-09-01 06:12:03,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 553 transitions. [2023-09-01 06:12:03,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:03,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 553 transitions. [2023-09-01 06:12:03,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,579 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,579 INFO L175 Difference]: Start difference. First operand has 48 places, 27 transitions, 155 flow. Second operand 8 states and 553 transitions. [2023-09-01 06:12:03,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 27 transitions, 199 flow [2023-09-01 06:12:03,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 27 transitions, 182 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 06:12:03,581 INFO L231 Difference]: Finished difference. Result has 49 places, 20 transitions, 107 flow [2023-09-01 06:12:03,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=107, PETRI_PLACES=49, PETRI_TRANSITIONS=20} [2023-09-01 06:12:03,581 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-09-01 06:12:03,582 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 20 transitions, 107 flow [2023-09-01 06:12:03,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:03,582 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:03,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 06:12:03,583 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:12:03,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:03,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1264260826, now seen corresponding path program 2 times [2023-09-01 06:12:03,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:03,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94825508] [2023-09-01 06:12:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:03,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:03,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:03,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94825508] [2023-09-01 06:12:03,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94825508] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:03,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:03,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:03,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728405866] [2023-09-01 06:12:03,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:03,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:03,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:03,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:03,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:03,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-09-01 06:12:03,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 20 transitions, 107 flow. Second operand has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:03,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-09-01 06:12:03,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:03,950 INFO L130 PetriNetUnfolder]: 2/21 cut-off events. [2023-09-01 06:12:03,950 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-09-01 06:12:03,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 21 events. 2/21 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 77. Up to 15 conditions per place. [2023-09-01 06:12:03,951 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-09-01 06:12:03,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 20 transitions, 143 flow [2023-09-01 06:12:03,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:12:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:12:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2023-09-01 06:12:03,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42489711934156377 [2023-09-01 06:12:03,953 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2023-09-01 06:12:03,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2023-09-01 06:12:03,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:03,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2023-09-01 06:12:03,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,957 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,957 INFO L175 Difference]: Start difference. First operand has 49 places, 20 transitions, 107 flow. Second operand 6 states and 413 transitions. [2023-09-01 06:12:03,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 20 transitions, 143 flow [2023-09-01 06:12:03,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 20 transitions, 130 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-09-01 06:12:03,958 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-09-01 06:12:03,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-09-01 06:12:03,959 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-09-01 06:12:03,959 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-09-01 06:12:03,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:03,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-09-01 06:12:03,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-09-01 06:12:03,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-09-01 06:12:03,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-09-01 06:12:03,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-09-01 06:12:03,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-09-01 06:12:03,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-09-01 06:12:03,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-09-01 06:12:03,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-09-01 06:12:03,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 06:12:03,964 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2023-09-01 06:12:03,968 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:12:03,968 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:12:03,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:12:03 BasicIcfg [2023-09-01 06:12:03,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:12:03,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:12:03,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:12:03,971 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:12:03,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:11:56" (3/4) ... [2023-09-01 06:12:03,973 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:12:03,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:12:03,981 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 06:12:03,982 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 06:12:03,982 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:12:04,006 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:12:04,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:12:04,007 INFO L158 Benchmark]: Toolchain (without parser) took 8441.45ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 61.7MB in the beginning and 90.0MB in the end (delta: -28.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-09-01 06:12:04,007 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:04,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.12ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.9MB in the end (delta: -147.6kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-09-01 06:12:04,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.77ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 59.8MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:12:04,008 INFO L158 Benchmark]: Boogie Preprocessor took 58.68ms. Allocated memory is still 86.0MB. Free memory was 59.4MB in the beginning and 58.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:04,009 INFO L158 Benchmark]: RCFGBuilder took 464.06ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 44.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 06:12:04,009 INFO L158 Benchmark]: TraceAbstraction took 7229.93ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 43.8MB in the beginning and 92.1MB in the end (delta: -48.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:04,009 INFO L158 Benchmark]: Witness Printer took 35.87ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 90.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:04,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.12ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.9MB in the end (delta: -147.6kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.77ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 59.8MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.68ms. Allocated memory is still 86.0MB. Free memory was 59.4MB in the beginning and 58.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 464.06ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 44.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7229.93ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 43.8MB in the beginning and 92.1MB in the end (delta: -48.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.87ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 90.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 81 PlacesBefore, 21 PlacesAfterwards, 81 TransitionsBefore, 18 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 80 TotalNumberOfCompositions, 1232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 917, independent: 847, independent conditional: 0, independent unconditional: 847, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 550, independent: 528, independent conditional: 0, independent unconditional: 528, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 917, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 550, unknown conditional: 0, unknown unconditional: 550] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 771 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 553 mSDsluCounter, 425 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1344 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 102 mSDtfsCounter, 1344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1319 SizeOfPredicates, 3 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 286/330 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:12:04,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE