./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.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/05-lval_ls_02-idx_nr.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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --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 06:10:28,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:10:28,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:10:28,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:10:28,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:10:28,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:10:28,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:10:28,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:10:28,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:10:28,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:10:28,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:10:28,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:10:28,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:10:28,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:10:28,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:10:28,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:10:28,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:10:28,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:10:28,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:10:28,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:10:28,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:10:28,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:10:28,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:10:28,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:10:28,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:10:28,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:10:28,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:10:28,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:10:28,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:10:28,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:10:28,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:10:28,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:10:28,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:10:28,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:10:28,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:10:28,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:10:28,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:10:28,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:10:28,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:10:28,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:10:28,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:10:28,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:10:28,549 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:10:28,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:10:28,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:10:28,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:10:28,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:10:28,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:10:28,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:10:28,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:10:28,552 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:10:28,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:10:28,552 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:10:28,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:10:28,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:10:28,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:10:28,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:10:28,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:10:28,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:10:28,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:10:28,554 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:10:28,554 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:10:28,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:10:28,554 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:10:28,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:10:28,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:10:28,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:10:28,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:10:28,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:10:28,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:10:28,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:10:28,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:10:28,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:10:28,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:10:28,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:10:28,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:10:28,557 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:10:28,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:10:28,557 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:10:28,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:10:28,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:10:28,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:10:28,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:10:28,881 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:10:28,882 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:10:28,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-09-01 06:10:29,970 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:10:30,230 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:10:30,231 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-09-01 06:10:30,245 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925cc3b09/b62200b0fe1c42e495091cf9c4b6c9d5/FLAGf62f9eaf9 [2023-09-01 06:10:30,257 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925cc3b09/b62200b0fe1c42e495091cf9c4b6c9d5 [2023-09-01 06:10:30,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:10:30,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:10:30,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:10:30,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:10:30,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:10:30,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf0d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30, skipping insertion in model container [2023-09-01 06:10:30,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:10:30,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:10:30,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:10:30,544 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:10:30,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:10:30,622 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:10:30,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30 WrapperNode [2023-09-01 06:10:30,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:10:30,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:10:30,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:10:30,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:10:30,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,676 INFO L138 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-09-01 06:10:30,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:10:30,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:10:30,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:10:30,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:10:30,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:10:30,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:10:30,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:10:30,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:10:30,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (1/1) ... [2023-09-01 06:10:30,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:10:30,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:10:30,769 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 06:10:30,777 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 06:10:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:10:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:10:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:10:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:10:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:10:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:10:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:10:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:10:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:10:30,802 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 06:10:30,966 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:10:30,968 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:10:31,099 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:10:31,105 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:10:31,106 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-09-01 06:10:31,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:10:31 BoogieIcfgContainer [2023-09-01 06:10:31,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:10:31,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:10:31,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:10:31,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:10:31,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:10:30" (1/3) ... [2023-09-01 06:10:31,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748ccfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:10:31, skipping insertion in model container [2023-09-01 06:10:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:30" (2/3) ... [2023-09-01 06:10:31,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748ccfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:10:31, skipping insertion in model container [2023-09-01 06:10:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:10:31" (3/3) ... [2023-09-01 06:10:31,130 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2023-09-01 06:10:31,137 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:10:31,145 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:10:31,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 06:10:31,146 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:10:31,189 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:10:31,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 119 flow [2023-09-01 06:10:31,250 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2023-09-01 06:10:31,250 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:31,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 2/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-09-01 06:10:31,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 57 transitions, 119 flow [2023-09-01 06:10:31,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 56 transitions, 115 flow [2023-09-01 06:10:31,281 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:10:31,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 115 flow [2023-09-01 06:10:31,289 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 56 transitions, 115 flow [2023-09-01 06:10:31,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 115 flow [2023-09-01 06:10:31,302 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2023-09-01 06:10:31,302 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:31,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 2/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-09-01 06:10:31,303 INFO L119 LiptonReduction]: Number of co-enabled transitions 442 [2023-09-01 06:10:32,459 INFO L134 LiptonReduction]: Checked pairs total: 859 [2023-09-01 06:10:32,460 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-09-01 06:10:32,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:10:32,479 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;@3403ba49, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:10:32,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-09-01 06:10:32,481 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-09-01 06:10:32,481 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:32,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:32,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 06:10:32,483 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 06:10:32,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:32,487 INFO L85 PathProgramCache]: Analyzing trace with hash 6908, now seen corresponding path program 1 times [2023-09-01 06:10:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137707704] [2023-09-01 06:10:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:32,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:10:32,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137707704] [2023-09-01 06:10:32,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137707704] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:32,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:32,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:10:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144531089] [2023-09-01 06:10:32,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:32,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:32,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:32,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:32,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-09-01 06:10:32,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:32,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-09-01 06:10:32,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:32,757 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-09-01 06:10:32,758 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:32,758 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 282 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 06:10:32,760 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-09-01 06:10:32,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-09-01 06:10:32,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:32,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2023-09-01 06:10:32,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5451713395638629 [2023-09-01 06:10:32,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2023-09-01 06:10:32,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2023-09-01 06:10:32,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:32,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2023-09-01 06:10:32,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,784 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 175 transitions. [2023-09-01 06:10:32,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-09-01 06:10:32,787 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 06:10:32,788 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-09-01 06:10:32,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, 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 06:10:32,794 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-09-01 06:10:32,794 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-09-01 06:10:32,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:32,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:10:32,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:10:32,796 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 06:10:32,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash 214515, now seen corresponding path program 1 times [2023-09-01 06:10:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:32,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300651486] [2023-09-01 06:10:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:32,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:32,843 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 06:10:32,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:32,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300651486] [2023-09-01 06:10:32,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300651486] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:32,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:32,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:10:32,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961714904] [2023-09-01 06:10:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:32,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:32,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:32,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:32,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-09-01 06:10:32,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:32,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-09-01 06:10:32,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:32,886 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-09-01 06:10:32,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:32,887 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 281 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 89 conditions per place. [2023-09-01 06:10:32,888 INFO L137 encePairwiseOnDemand]: 105/107 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-09-01 06:10:32,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 80 flow [2023-09-01 06:10:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2023-09-01 06:10:32,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5295950155763239 [2023-09-01 06:10:32,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2023-09-01 06:10:32,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2023-09-01 06:10:32,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:32,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2023-09-01 06:10:32,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,894 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 3 states and 170 transitions. [2023-09-01 06:10:32,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 80 flow [2023-09-01 06:10:32,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:32,895 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 44 flow [2023-09-01 06:10:32,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-09-01 06:10:32,896 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-09-01 06:10:32,896 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 44 flow [2023-09-01 06:10:32,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:32,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:32,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:10:32,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:10:32,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:32,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2095756518, now seen corresponding path program 1 times [2023-09-01 06:10:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:32,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936631238] [2023-09-01 06:10:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:32,950 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 06:10:32,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:32,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936631238] [2023-09-01 06:10:32,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936631238] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:10:32,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971858657] [2023-09-01 06:10:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:32,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:10:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:10:32,971 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 06:10:32,987 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 06:10:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:33,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 06:10:33,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:10:33,077 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 06:10:33,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 06:10:33,090 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 06:10:33,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971858657] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 06:10:33,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 06:10:33,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-09-01 06:10:33,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546913263] [2023-09-01 06:10:33,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 06:10:33,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:10:33,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:33,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:10:33,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:10:33,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2023-09-01 06:10:33,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:33,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2023-09-01 06:10:33,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:33,152 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-09-01 06:10:33,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:33,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 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 281 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 189. Up to 89 conditions per place. [2023-09-01 06:10:33,153 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-09-01 06:10:33,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 96 flow [2023-09-01 06:10:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:10:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:10:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 323 transitions. [2023-09-01 06:10:33,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5031152647975078 [2023-09-01 06:10:33,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 323 transitions. [2023-09-01 06:10:33,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 323 transitions. [2023-09-01 06:10:33,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:33,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 323 transitions. [2023-09-01 06:10:33,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,158 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,158 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 44 flow. Second operand 6 states and 323 transitions. [2023-09-01 06:10:33,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 96 flow [2023-09-01 06:10:33,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:33,159 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-09-01 06:10:33,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, 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 06:10:33,160 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-09-01 06:10:33,160 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-09-01 06:10:33,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:33,161 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-09-01 06:10:33,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-09-01 06:10:33,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:10:33,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:33,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:33,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2103736701, now seen corresponding path program 2 times [2023-09-01 06:10:33,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:33,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241190142] [2023-09-01 06:10:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:33,468 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 06:10:33,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:33,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241190142] [2023-09-01 06:10:33,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241190142] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:33,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:33,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:10:33,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011118990] [2023-09-01 06:10:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:33,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:33,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:33,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:33,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107 [2023-09-01 06:10:33,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:33,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107 [2023-09-01 06:10:33,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:33,542 INFO L130 PetriNetUnfolder]: 26/76 cut-off events. [2023-09-01 06:10:33,542 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 06:10:33,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 76 events. 26/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 226 event pairs, 13 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 39 conditions per place. [2023-09-01 06:10:33,543 INFO L137 encePairwiseOnDemand]: 100/107 looper letters, 21 selfloop transitions, 5 changer transitions 4/30 dead transitions. [2023-09-01 06:10:33,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 159 flow [2023-09-01 06:10:33,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2023-09-01 06:10:33,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573208722741433 [2023-09-01 06:10:33,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2023-09-01 06:10:33,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2023-09-01 06:10:33,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:33,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2023-09-01 06:10:33,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,548 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 3 states and 184 transitions. [2023-09-01 06:10:33,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 159 flow [2023-09-01 06:10:33,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 145 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:33,550 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 97 flow [2023-09-01 06:10:33,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, 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=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-09-01 06:10:33,551 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-09-01 06:10:33,551 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 97 flow [2023-09-01 06:10:33,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:33,552 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-09-01 06:10:33,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:10:33,552 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 06:10:33,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2103736711, now seen corresponding path program 1 times [2023-09-01 06:10:33,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:33,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099421267] [2023-09-01 06:10:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:33,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:33,646 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 06:10:33,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:33,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099421267] [2023-09-01 06:10:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099421267] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:33,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:33,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:10:33,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938386058] [2023-09-01 06:10:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:33,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:33,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:33,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:33,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107 [2023-09-01 06:10:33,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:33,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107 [2023-09-01 06:10:33,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:33,709 INFO L130 PetriNetUnfolder]: 17/52 cut-off events. [2023-09-01 06:10:33,710 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-09-01 06:10:33,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 52 events. 17/52 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 8 based on Foata normal form. 6/58 useless extension candidates. Maximal degree in co-relation 138. Up to 33 conditions per place. [2023-09-01 06:10:33,711 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 19 selfloop transitions, 3 changer transitions 2/24 dead transitions. [2023-09-01 06:10:33,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 145 flow [2023-09-01 06:10:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:33,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:33,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2023-09-01 06:10:33,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5545171339563862 [2023-09-01 06:10:33,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2023-09-01 06:10:33,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2023-09-01 06:10:33,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:33,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2023-09-01 06:10:33,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,719 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 97 flow. Second operand 3 states and 178 transitions. [2023-09-01 06:10:33,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 145 flow [2023-09-01 06:10:33,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:10:33,722 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2023-09-01 06:10:33,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-09-01 06:10:33,725 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-09-01 06:10:33,725 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2023-09-01 06:10:33,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:33,726 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:33,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:10:33,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:33,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:33,729 INFO L85 PathProgramCache]: Analyzing trace with hash 256994795, now seen corresponding path program 1 times [2023-09-01 06:10:33,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:33,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379063867] [2023-09-01 06:10:33,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:33,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:33,864 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 06:10:33,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:33,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379063867] [2023-09-01 06:10:33,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379063867] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:33,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:33,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:33,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020553937] [2023-09-01 06:10:33,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:33,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:33,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:33,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2023-09-01 06:10:33,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:33,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2023-09-01 06:10:33,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:33,921 INFO L130 PetriNetUnfolder]: 1/24 cut-off events. [2023-09-01 06:10:33,926 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-09-01 06:10:33,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 24 events. 1/24 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/28 useless extension candidates. Maximal degree in co-relation 66. Up to 14 conditions per place. [2023-09-01 06:10:33,927 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 16 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2023-09-01 06:10:33,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 125 flow [2023-09-01 06:10:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2023-09-01 06:10:33,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.514018691588785 [2023-09-01 06:10:33,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 165 transitions. [2023-09-01 06:10:33,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 165 transitions. [2023-09-01 06:10:33,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:33,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 165 transitions. [2023-09-01 06:10:33,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,935 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 3 states and 165 transitions. [2023-09-01 06:10:33,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 125 flow [2023-09-01 06:10:33,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:10:33,937 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2023-09-01 06:10:33,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-09-01 06:10:33,938 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-09-01 06:10:33,939 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2023-09-01 06:10:33,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:33,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:33,940 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:33,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:10:33,942 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:33,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash -601319423, now seen corresponding path program 1 times [2023-09-01 06:10:33,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:33,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412989174] [2023-09-01 06:10:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:34,027 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 06:10:34,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412989174] [2023-09-01 06:10:34,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412989174] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:10:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368642266] [2023-09-01 06:10:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:34,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:10:34,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:10:34,030 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 06:10:34,053 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 06:10:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:34,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-01 06:10:34,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:10:34,127 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 06:10:34,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 06:10:34,176 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 06:10:34,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368642266] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 06:10:34,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 06:10:34,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-09-01 06:10:34,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395839192] [2023-09-01 06:10:34,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 06:10:34,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 06:10:34,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:34,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 06:10:34,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-09-01 06:10:34,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2023-09-01 06:10:34,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 13 states, 13 states have (on average 51.61538461538461) internal successors, (671), 13 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:34,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2023-09-01 06:10:34,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:34,251 INFO L130 PetriNetUnfolder]: 1/30 cut-off events. [2023-09-01 06:10:34,251 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-09-01 06:10:34,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 30 events. 1/30 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/34 useless extension candidates. Maximal degree in co-relation 92. Up to 21 conditions per place. [2023-09-01 06:10:34,251 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-09-01 06:10:34,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 173 flow [2023-09-01 06:10:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 06:10:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 06:10:34,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 632 transitions. [2023-09-01 06:10:34,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49221183800623053 [2023-09-01 06:10:34,253 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 632 transitions. [2023-09-01 06:10:34,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 632 transitions. [2023-09-01 06:10:34,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:34,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 632 transitions. [2023-09-01 06:10:34,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.666666666666664) internal successors, (632), 12 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,256 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,256 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 12 states and 632 transitions. [2023-09-01 06:10:34,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 173 flow [2023-09-01 06:10:34,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:34,257 INFO L231 Difference]: Finished difference. Result has 48 places, 26 transitions, 165 flow [2023-09-01 06:10:34,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=165, PETRI_PLACES=48, PETRI_TRANSITIONS=26} [2023-09-01 06:10:34,258 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-09-01 06:10:34,258 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 165 flow [2023-09-01 06:10:34,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.61538461538461) internal successors, (671), 13 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:34,258 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:34,279 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 06:10:34,480 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,SelfDestructingSolverStorable6 [2023-09-01 06:10:34,480 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 06:10:34,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:34,480 INFO L85 PathProgramCache]: Analyzing trace with hash 649461601, now seen corresponding path program 2 times [2023-09-01 06:10:34,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:34,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579456545] [2023-09-01 06:10:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:34,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:34,547 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 06:10:34,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:34,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579456545] [2023-09-01 06:10:34,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579456545] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:34,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:34,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:34,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271896076] [2023-09-01 06:10:34,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:34,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:10:34,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:34,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:10:34,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:10:34,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2023-09-01 06:10:34,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:34,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2023-09-01 06:10:34,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:34,597 INFO L130 PetriNetUnfolder]: 1/29 cut-off events. [2023-09-01 06:10:34,597 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-09-01 06:10:34,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 29 events. 1/29 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 108. Up to 17 conditions per place. [2023-09-01 06:10:34,597 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 22 selfloop transitions, 5 changer transitions 2/29 dead transitions. [2023-09-01 06:10:34,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 29 transitions, 229 flow [2023-09-01 06:10:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:10:34,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:10:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 302 transitions. [2023-09-01 06:10:34,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470404984423676 [2023-09-01 06:10:34,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 302 transitions. [2023-09-01 06:10:34,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 302 transitions. [2023-09-01 06:10:34,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:34,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 302 transitions. [2023-09-01 06:10:34,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,600 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,600 INFO L175 Difference]: Start difference. First operand has 48 places, 26 transitions, 165 flow. Second operand 6 states and 302 transitions. [2023-09-01 06:10:34,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 29 transitions, 229 flow [2023-09-01 06:10:34,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 29 transitions, 181 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-09-01 06:10:34,602 INFO L231 Difference]: Finished difference. Result has 47 places, 25 transitions, 123 flow [2023-09-01 06:10:34,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=47, PETRI_TRANSITIONS=25} [2023-09-01 06:10:34,603 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 26 predicate places. [2023-09-01 06:10:34,603 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 25 transitions, 123 flow [2023-09-01 06:10:34,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:34,603 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:34,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 06:10:34,604 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 06:10:34,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:34,604 INFO L85 PathProgramCache]: Analyzing trace with hash 649461608, now seen corresponding path program 1 times [2023-09-01 06:10:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:34,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867354031] [2023-09-01 06:10:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:34,652 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 06:10:34,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:34,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867354031] [2023-09-01 06:10:34,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867354031] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:34,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:34,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:34,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37862584] [2023-09-01 06:10:34,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:34,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:10:34,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:34,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:10:34,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:10:34,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2023-09-01 06:10:34,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 25 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:34,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2023-09-01 06:10:34,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:34,707 INFO L130 PetriNetUnfolder]: 1/27 cut-off events. [2023-09-01 06:10:34,707 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 06:10:34,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 27 events. 1/27 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 85. Up to 17 conditions per place. [2023-09-01 06:10:34,707 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2023-09-01 06:10:34,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 27 transitions, 182 flow [2023-09-01 06:10:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:10:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:10:34,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2023-09-01 06:10:34,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47289719626168225 [2023-09-01 06:10:34,709 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 253 transitions. [2023-09-01 06:10:34,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 253 transitions. [2023-09-01 06:10:34,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:34,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 253 transitions. [2023-09-01 06:10:34,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,710 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,710 INFO L175 Difference]: Start difference. First operand has 47 places, 25 transitions, 123 flow. Second operand 5 states and 253 transitions. [2023-09-01 06:10:34,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 27 transitions, 182 flow [2023-09-01 06:10:34,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 27 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:10:34,711 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 111 flow [2023-09-01 06:10:34,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2023-09-01 06:10:34,712 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-09-01 06:10:34,712 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 111 flow [2023-09-01 06:10:34,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:34,712 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:34,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 06:10:34,713 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:34,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash -257412939, now seen corresponding path program 1 times [2023-09-01 06:10:34,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:34,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256502015] [2023-09-01 06:10:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:34,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:34,761 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 06:10:34,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256502015] [2023-09-01 06:10:34,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256502015] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:34,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:34,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888721216] [2023-09-01 06:10:34,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:34,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:10:34,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:34,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:10:34,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:10:34,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2023-09-01 06:10:34,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:34,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2023-09-01 06:10:34,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:34,801 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-09-01 06:10:34,802 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-09-01 06:10:34,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 21 events. 1/21 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 69. Up to 16 conditions per place. [2023-09-01 06:10:34,802 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 17 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2023-09-01 06:10:34,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 21 transitions, 150 flow [2023-09-01 06:10:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:10:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:10:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2023-09-01 06:10:34,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102803738317756 [2023-09-01 06:10:34,804 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 252 transitions. [2023-09-01 06:10:34,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 252 transitions. [2023-09-01 06:10:34,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:34,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 252 transitions. [2023-09-01 06:10:34,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,806 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,806 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 111 flow. Second operand 5 states and 252 transitions. [2023-09-01 06:10:34,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 21 transitions, 150 flow [2023-09-01 06:10:34,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 21 transitions, 141 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:10:34,808 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 102 flow [2023-09-01 06:10:34,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-09-01 06:10:34,809 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-09-01 06:10:34,809 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 102 flow [2023-09-01 06:10:34,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:34,810 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:34,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 06:10:34,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:34,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash -257412929, now seen corresponding path program 1 times [2023-09-01 06:10:34,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:34,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849824328] [2023-09-01 06:10:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:34,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:34,899 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 06:10:34,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:34,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849824328] [2023-09-01 06:10:34,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849824328] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:34,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:34,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:34,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248201020] [2023-09-01 06:10:34,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:34,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:10:34,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:34,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:10:34,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:10:34,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2023-09-01 06:10:34,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:34,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2023-09-01 06:10:34,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:34,937 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-09-01 06:10:34,937 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-09-01 06:10:34,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 20 events. 1/20 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 66. Up to 16 conditions per place. [2023-09-01 06:10:34,938 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-09-01 06:10:34,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 141 flow [2023-09-01 06:10:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:10:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:10:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 251 transitions. [2023-09-01 06:10:34,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691588785046729 [2023-09-01 06:10:34,940 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 251 transitions. [2023-09-01 06:10:34,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 251 transitions. [2023-09-01 06:10:34,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:34,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 251 transitions. [2023-09-01 06:10:34,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,942 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,942 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 102 flow. Second operand 5 states and 251 transitions. [2023-09-01 06:10:34,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 141 flow [2023-09-01 06:10:34,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 20 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:10:34,945 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-09-01 06:10:34,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-09-01 06:10:34,946 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 18 predicate places. [2023-09-01 06:10:34,946 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-09-01 06:10:34,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:34,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-09-01 06:10:34,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-09-01 06:10:34,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-09-01 06:10:34,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-09-01 06:10:34,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-09-01 06:10:34,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-09-01 06:10:34,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-09-01 06:10:34,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-09-01 06:10:34,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-09-01 06:10:34,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 06:10:34,952 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:34,958 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:10:34,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:10:34,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:10:34 BasicIcfg [2023-09-01 06:10:34,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:10:34,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:10:34,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:10:34,964 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:10:34,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:10:31" (3/4) ... [2023-09-01 06:10:34,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:10:34,973 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:10:34,977 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-09-01 06:10:34,977 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 06:10:34,977 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:10:35,000 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:10:35,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:10:35,001 INFO L158 Benchmark]: Toolchain (without parser) took 4740.49ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 45.7MB in the beginning and 86.5MB in the end (delta: -40.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,001 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:10:35,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.95ms. Allocated memory is still 69.2MB. Free memory was 45.5MB in the beginning and 43.2MB in the end (delta: 2.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.76ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 41.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,002 INFO L158 Benchmark]: Boogie Preprocessor took 52.48ms. Allocated memory is still 69.2MB. Free memory was 41.3MB in the beginning and 39.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,002 INFO L158 Benchmark]: RCFGBuilder took 377.29ms. Allocated memory is still 69.2MB. Free memory was 39.9MB in the beginning and 28.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,002 INFO L158 Benchmark]: TraceAbstraction took 3838.95ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 47.8MB in the beginning and 89.7MB in the end (delta: -41.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,002 INFO L158 Benchmark]: Witness Printer took 36.34ms. Allocated memory is still 123.7MB. Free memory was 89.7MB in the beginning and 86.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:10:35,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.95ms. Allocated memory is still 69.2MB. Free memory was 45.5MB in the beginning and 43.2MB in the end (delta: 2.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.76ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 41.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.48ms. Allocated memory is still 69.2MB. Free memory was 41.3MB in the beginning and 39.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.29ms. Allocated memory is still 69.2MB. Free memory was 39.9MB in the beginning and 28.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3838.95ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 47.8MB in the beginning and 89.7MB in the end (delta: -41.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 36.34ms. Allocated memory is still 123.7MB. Free memory was 89.7MB in the beginning and 86.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 58 PlacesBefore, 21 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 4 FixpointIterations, 21 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 50 TotalNumberOfCompositions, 859 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 619, independent: 547, independent conditional: 0, independent unconditional: 547, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 289, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, 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: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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, 71 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: 3.7s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 584 IncrementalHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 18 mSDtfsCounter, 584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 251/284 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 06:10:35,016 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