./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-match-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 016929a4a7ae1865ccc9d17762b9a3f4b350d2f1f075a0491feba933e4e45fac --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:56:32,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:56:32,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:56:32,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:56:32,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:56:32,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:56:32,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:56:32,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:56:32,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:56:32,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:56:32,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:56:32,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:56:32,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:56:32,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:56:32,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:56:32,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:56:32,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:56:32,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:56:32,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:56:32,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:56:32,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:56:32,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:56:32,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:56:32,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:56:32,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:56:32,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:56:32,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:56:32,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:56:32,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:56:32,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:56:32,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:56:32,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:56:32,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:56:32,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:56:32,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:56:32,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:56:32,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:56:32,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:56:32,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:56:32,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:56:32,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:56:32,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:56:32,771 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:56:32,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:56:32,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:56:32,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:56:32,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:56:32,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:56:32,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:56:32,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:56:32,774 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:56:32,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:56:32,775 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:56:32,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:56:32,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:56:32,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:56:32,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:56:32,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:56:32,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:56:32,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:56:32,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:56:32,777 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:56:32,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:56:32,777 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:56:32,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:56:32,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:56:32,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:56:32,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:56:32,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:56:32,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:56:32,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:56:32,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:56:32,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:56:32,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:56:32,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:56:32,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:56:32,779 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:56:32,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:56:32,780 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:56:32,780 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 016929a4a7ae1865ccc9d17762b9a3f4b350d2f1f075a0491feba933e4e45fac Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:56:33,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:56:33,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:56:33,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:56:33,093 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:56:33,093 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:56:33,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2023-08-30 10:56:34,288 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:56:34,555 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:56:34,556 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2023-08-30 10:56:34,563 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85eae0a4a/3cbee182499e4ed58a2138b7e5e438df/FLAGfd8a96cbf [2023-08-30 10:56:34,576 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85eae0a4a/3cbee182499e4ed58a2138b7e5e438df [2023-08-30 10:56:34,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:56:34,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:56:34,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:56:34,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:56:34,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:56:34,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581f0579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34, skipping insertion in model container [2023-08-30 10:56:34,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:56:34,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:56:34,763 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c[2584,2597] [2023-08-30 10:56:34,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:56:34,779 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:56:34,815 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c[2584,2597] [2023-08-30 10:56:34,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:56:34,833 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:56:34,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34 WrapperNode [2023-08-30 10:56:34,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:56:34,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:56:34,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:56:34,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:56:34,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,896 INFO L138 Inliner]: procedures = 22, calls = 27, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 210 [2023-08-30 10:56:34,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:56:34,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:56:34,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:56:34,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:56:34,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,940 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:56:34,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:56:34,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:56:34,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:56:34,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (1/1) ... [2023-08-30 10:56:34,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:56:34,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:56:34,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 10:56:34,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 10:56:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:56:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 10:56:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 10:56:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 10:56:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 10:56:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:56:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:56:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:56:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:56:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:56:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 10:56:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:56:35,036 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 10:56:35,188 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:56:35,190 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:56:35,539 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:56:35,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:56:35,559 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 10:56:35,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:56:35 BoogieIcfgContainer [2023-08-30 10:56:35,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:56:35,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:56:35,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:56:35,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:56:35,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:56:34" (1/3) ... [2023-08-30 10:56:35,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447fecdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:56:35, skipping insertion in model container [2023-08-30 10:56:35,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:56:34" (2/3) ... [2023-08-30 10:56:35,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447fecdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:56:35, skipping insertion in model container [2023-08-30 10:56:35,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:56:35" (3/3) ... [2023-08-30 10:56:35,584 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2023-08-30 10:56:35,591 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:56:35,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:56:35,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-30 10:56:35,613 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:56:35,802 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 10:56:35,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 271 transitions, 558 flow [2023-08-30 10:56:35,990 INFO L130 PetriNetUnfolder]: 19/269 cut-off events. [2023-08-30 10:56:35,991 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:56:36,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 269 events. 19/269 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 400 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2023-08-30 10:56:36,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 271 transitions, 558 flow [2023-08-30 10:56:36,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 241 transitions, 491 flow [2023-08-30 10:56:36,012 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:56:36,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 241 transitions, 491 flow [2023-08-30 10:56:36,037 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 241 transitions, 491 flow [2023-08-30 10:56:36,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 241 transitions, 491 flow [2023-08-30 10:56:36,100 INFO L130 PetriNetUnfolder]: 16/241 cut-off events. [2023-08-30 10:56:36,100 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 10:56:36,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 241 events. 16/241 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 393 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2023-08-30 10:56:36,115 INFO L119 LiptonReduction]: Number of co-enabled transitions 19292 [2023-08-30 10:56:55,760 INFO L134 LiptonReduction]: Checked pairs total: 18879 [2023-08-30 10:56:55,761 INFO L136 LiptonReduction]: Total number of compositions: 332 [2023-08-30 10:56:55,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:56:55,778 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;@4aca8104, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:56:55,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-08-30 10:56:55,781 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 10:56:55,781 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:56:55,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:55,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:55,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:55,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1123407, now seen corresponding path program 1 times [2023-08-30 10:56:55,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:55,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864032337] [2023-08-30 10:56:55,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:55,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:55,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:55,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864032337] [2023-08-30 10:56:55,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864032337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:55,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:55,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:55,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298785070] [2023-08-30 10:56:55,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:55,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:55,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:56,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:56,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:56,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:56,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:56,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:56,206 INFO L130 PetriNetUnfolder]: 240/439 cut-off events. [2023-08-30 10:56:56,206 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-30 10:56:56,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 439 events. 240/439 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 2111 event pairs, 240 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 824. Up to 439 conditions per place. [2023-08-30 10:56:56,212 INFO L137 encePairwiseOnDemand]: 592/603 looper letters, 22 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2023-08-30 10:56:56,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 101 flow [2023-08-30 10:56:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:56,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2023-08-30 10:56:56,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43781094527363185 [2023-08-30 10:56:56,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2023-08-30 10:56:56,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2023-08-30 10:56:56,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:56,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2023-08-30 10:56:56,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,255 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 75 flow. Second operand 3 states and 792 transitions. [2023-08-30 10:56:56,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 101 flow [2023-08-30 10:56:56,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 10:56:56,260 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 52 flow [2023-08-30 10:56:56,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2023-08-30 10:56:56,265 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -11 predicate places. [2023-08-30 10:56:56,265 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 52 flow [2023-08-30 10:56:56,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:56,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:56,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:56:56,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:56,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1123476, now seen corresponding path program 1 times [2023-08-30 10:56:56,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054891280] [2023-08-30 10:56:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:56,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:56,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054891280] [2023-08-30 10:56:56,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054891280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:56,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:56,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:56,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020910208] [2023-08-30 10:56:56,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:56,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:56,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:56,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:56,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:56,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:56,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:56,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:56,482 INFO L130 PetriNetUnfolder]: 189/350 cut-off events. [2023-08-30 10:56:56,482 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 10:56:56,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 350 events. 189/350 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 1599 event pairs, 189 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 715. Up to 350 conditions per place. [2023-08-30 10:56:56,485 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 20 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2023-08-30 10:56:56,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 90 flow [2023-08-30 10:56:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2023-08-30 10:56:56,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43228302929795465 [2023-08-30 10:56:56,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 782 transitions. [2023-08-30 10:56:56,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 782 transitions. [2023-08-30 10:56:56,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:56,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 782 transitions. [2023-08-30 10:56:56,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,494 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 782 transitions. [2023-08-30 10:56:56,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 90 flow [2023-08-30 10:56:56,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:56,495 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 49 flow [2023-08-30 10:56:56,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2023-08-30 10:56:56,496 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -12 predicate places. [2023-08-30 10:56:56,496 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 49 flow [2023-08-30 10:56:56,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:56,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:56,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:56:56,504 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:56,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1123481, now seen corresponding path program 1 times [2023-08-30 10:56:56,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:56,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365860036] [2023-08-30 10:56:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:56,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:56,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365860036] [2023-08-30 10:56:56,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365860036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:56,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:56,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:56,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177175060] [2023-08-30 10:56:56,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:56,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:56,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:56,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:56,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:56,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:56,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:56,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:56,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:56,698 INFO L130 PetriNetUnfolder]: 144/271 cut-off events. [2023-08-30 10:56:56,698 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 10:56:56,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 271 events. 144/271 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1149 event pairs, 144 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 555. Up to 271 conditions per place. [2023-08-30 10:56:56,701 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 18 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2023-08-30 10:56:56,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 83 flow [2023-08-30 10:56:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2023-08-30 10:56:56,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4311774461028192 [2023-08-30 10:56:56,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 780 transitions. [2023-08-30 10:56:56,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 780 transitions. [2023-08-30 10:56:56,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:56,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 780 transitions. [2023-08-30 10:56:56,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,711 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 49 flow. Second operand 3 states and 780 transitions. [2023-08-30 10:56:56,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 83 flow [2023-08-30 10:56:56,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:56,712 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 46 flow [2023-08-30 10:56:56,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 10:56:56,714 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -13 predicate places. [2023-08-30 10:56:56,716 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 46 flow [2023-08-30 10:56:56,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:56,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:56,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 10:56:56,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:56,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:56,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1123479, now seen corresponding path program 1 times [2023-08-30 10:56:56,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:56,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502622148] [2023-08-30 10:56:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:56,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:56,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502622148] [2023-08-30 10:56:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502622148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125862972] [2023-08-30 10:56:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:56,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:56,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:56,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:56,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:56,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:56,844 INFO L130 PetriNetUnfolder]: 105/202 cut-off events. [2023-08-30 10:56:56,844 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 10:56:56,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 202 events. 105/202 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 789 event pairs, 105 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 415. Up to 202 conditions per place. [2023-08-30 10:56:56,846 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-30 10:56:56,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 17 transitions, 76 flow [2023-08-30 10:56:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 778 transitions. [2023-08-30 10:56:56,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4300718629076838 [2023-08-30 10:56:56,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 778 transitions. [2023-08-30 10:56:56,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 778 transitions. [2023-08-30 10:56:56,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:56,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 778 transitions. [2023-08-30 10:56:56,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,855 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 46 flow. Second operand 3 states and 778 transitions. [2023-08-30 10:56:56,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 17 transitions, 76 flow [2023-08-30 10:56:56,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:56,856 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 43 flow [2023-08-30 10:56:56,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=24, 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=43, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-30 10:56:56,856 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -14 predicate places. [2023-08-30 10:56:56,857 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 43 flow [2023-08-30 10:56:56,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:56,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:56,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 10:56:56,858 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:56,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:56,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1123477, now seen corresponding path program 1 times [2023-08-30 10:56:56,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:56,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609267735] [2023-08-30 10:56:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:56,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:56,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:56,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609267735] [2023-08-30 10:56:56,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609267735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:56,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:56,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:56,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697024952] [2023-08-30 10:56:56,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:56,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:56,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:56,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:56,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:56,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:56,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:56,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:56,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:56,982 INFO L130 PetriNetUnfolder]: 72/143 cut-off events. [2023-08-30 10:56:56,982 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 10:56:56,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 143 events. 72/143 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 501 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 295. Up to 143 conditions per place. [2023-08-30 10:56:56,983 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-08-30 10:56:56,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 15 transitions, 69 flow [2023-08-30 10:56:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2023-08-30 10:56:56,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42896627971254836 [2023-08-30 10:56:56,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 776 transitions. [2023-08-30 10:56:56,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 776 transitions. [2023-08-30 10:56:56,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:56,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 776 transitions. [2023-08-30 10:56:56,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,993 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 776 transitions. [2023-08-30 10:56:56,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 15 transitions, 69 flow [2023-08-30 10:56:56,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 15 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:56,994 INFO L231 Difference]: Finished difference. Result has 25 places, 15 transitions, 40 flow [2023-08-30 10:56:56,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=15} [2023-08-30 10:56:56,995 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -15 predicate places. [2023-08-30 10:56:56,995 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 15 transitions, 40 flow [2023-08-30 10:56:56,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:56,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:56,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:56,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:56:56,996 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:56,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:56,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1123493, now seen corresponding path program 1 times [2023-08-30 10:56:56,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:56,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731474995] [2023-08-30 10:56:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:57,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:57,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731474995] [2023-08-30 10:56:57,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731474995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:57,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:57,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:57,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887097424] [2023-08-30 10:56:57,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:57,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:57,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:57,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:57,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:57,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:57,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:57,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:57,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:57,153 INFO L130 PetriNetUnfolder]: 45/94 cut-off events. [2023-08-30 10:56:57,156 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 10:56:57,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 94 events. 45/94 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 283 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 195. Up to 94 conditions per place. [2023-08-30 10:56:57,156 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-08-30 10:56:57,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 13 transitions, 62 flow [2023-08-30 10:56:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:57,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2023-08-30 10:56:57,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42786069651741293 [2023-08-30 10:56:57,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 774 transitions. [2023-08-30 10:56:57,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 774 transitions. [2023-08-30 10:56:57,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:57,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 774 transitions. [2023-08-30 10:56:57,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,166 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 40 flow. Second operand 3 states and 774 transitions. [2023-08-30 10:56:57,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 13 transitions, 62 flow [2023-08-30 10:56:57,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 13 transitions, 61 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:57,167 INFO L231 Difference]: Finished difference. Result has 24 places, 13 transitions, 37 flow [2023-08-30 10:56:57,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=24, PETRI_TRANSITIONS=13} [2023-08-30 10:56:57,168 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -16 predicate places. [2023-08-30 10:56:57,169 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 13 transitions, 37 flow [2023-08-30 10:56:57,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:57,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:57,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 10:56:57,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:57,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:57,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1123492, now seen corresponding path program 1 times [2023-08-30 10:56:57,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:57,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10764019] [2023-08-30 10:56:57,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:57,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:57,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:57,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10764019] [2023-08-30 10:56:57,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10764019] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:57,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:57,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:57,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648790681] [2023-08-30 10:56:57,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:57,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:57,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:57,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:57,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:57,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 13 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:57,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:57,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:57,251 INFO L130 PetriNetUnfolder]: 24/55 cut-off events. [2023-08-30 10:56:57,251 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:56:57,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 55 events. 24/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 127 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 115. Up to 55 conditions per place. [2023-08-30 10:56:57,252 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-30 10:56:57,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 11 transitions, 55 flow [2023-08-30 10:56:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2023-08-30 10:56:57,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4267551133222775 [2023-08-30 10:56:57,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 772 transitions. [2023-08-30 10:56:57,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 772 transitions. [2023-08-30 10:56:57,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:57,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 772 transitions. [2023-08-30 10:56:57,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,260 INFO L175 Difference]: Start difference. First operand has 24 places, 13 transitions, 37 flow. Second operand 3 states and 772 transitions. [2023-08-30 10:56:57,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 11 transitions, 55 flow [2023-08-30 10:56:57,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 11 transitions, 54 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:57,261 INFO L231 Difference]: Finished difference. Result has 23 places, 11 transitions, 34 flow [2023-08-30 10:56:57,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=23, PETRI_TRANSITIONS=11} [2023-08-30 10:56:57,263 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -17 predicate places. [2023-08-30 10:56:57,263 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 11 transitions, 34 flow [2023-08-30 10:56:57,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:56:57,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:56:57,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 10:56:57,266 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-08-30 10:56:57,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:56:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1123490, now seen corresponding path program 1 times [2023-08-30 10:56:57,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:56:57,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387351906] [2023-08-30 10:56:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:56:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:56:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:56:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:56:57,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:56:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387351906] [2023-08-30 10:56:57,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387351906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:56:57,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:56:57,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:56:57,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38427514] [2023-08-30 10:56:57,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:56:57,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:56:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:56:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:56:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:56:57,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 603 [2023-08-30 10:56:57,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 11 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:56:57,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 603 [2023-08-30 10:56:57,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:56:57,344 INFO L130 PetriNetUnfolder]: 9/26 cut-off events. [2023-08-30 10:56:57,344 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 10:56:57,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 26 events. 9/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 55. Up to 26 conditions per place. [2023-08-30 10:56:57,344 INFO L137 encePairwiseOnDemand]: 600/603 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-08-30 10:56:57,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 9 transitions, 48 flow [2023-08-30 10:56:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:56:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:56:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2023-08-30 10:56:57,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4256495301271421 [2023-08-30 10:56:57,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2023-08-30 10:56:57,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2023-08-30 10:56:57,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:56:57,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2023-08-30 10:56:57,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,352 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 603.0) internal successors, (2412), 4 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,352 INFO L175 Difference]: Start difference. First operand has 23 places, 11 transitions, 34 flow. Second operand 3 states and 770 transitions. [2023-08-30 10:56:57,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 9 transitions, 48 flow [2023-08-30 10:56:57,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 9 transitions, 47 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:56:57,353 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-30 10:56:57,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=603, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-30 10:56:57,356 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -18 predicate places. [2023-08-30 10:56:57,356 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-30 10:56:57,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:56:57,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2023-08-30 10:56:57,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2023-08-30 10:56:57,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2023-08-30 10:56:57,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2023-08-30 10:56:57,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2023-08-30 10:56:57,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2023-08-30 10:56:57,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2023-08-30 10:56:57,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2023-08-30 10:56:57,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2023-08-30 10:56:57,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2023-08-30 10:56:57,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2023-08-30 10:56:57,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2023-08-30 10:56:57,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2023-08-30 10:56:57,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2023-08-30 10:56:57,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2023-08-30 10:56:57,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2023-08-30 10:56:57,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2023-08-30 10:56:57,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2023-08-30 10:56:57,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2023-08-30 10:56:57,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2023-08-30 10:56:57,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2023-08-30 10:56:57,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2023-08-30 10:56:57,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2023-08-30 10:56:57,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2023-08-30 10:56:57,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2023-08-30 10:56:57,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2023-08-30 10:56:57,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2023-08-30 10:56:57,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2023-08-30 10:56:57,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2023-08-30 10:56:57,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2023-08-30 10:56:57,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2023-08-30 10:56:57,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2023-08-30 10:56:57,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2023-08-30 10:56:57,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2023-08-30 10:56:57,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2023-08-30 10:56:57,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2023-08-30 10:56:57,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2023-08-30 10:56:57,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2023-08-30 10:56:57,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 10:56:57,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:56:57,375 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:56:57,375 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:56:57,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:56:57 BasicIcfg [2023-08-30 10:56:57,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:56:57,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:56:57,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:56:57,378 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:56:57,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:56:35" (3/4) ... [2023-08-30 10:56:57,381 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 10:56:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 10:56:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 10:56:57,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 10:56:57,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 10:56:57,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 10:56:57,390 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 10:56:57,418 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:56:57,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:56:57,419 INFO L158 Benchmark]: Toolchain (without parser) took 22839.03ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 54.9MB in the beginning and 66.5MB in the end (delta: -11.6MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,419 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:56:57,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.42ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 43.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.99ms. Allocated memory is still 77.6MB. Free memory was 43.7MB in the beginning and 41.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,420 INFO L158 Benchmark]: Boogie Preprocessor took 51.02ms. Allocated memory is still 77.6MB. Free memory was 41.4MB in the beginning and 39.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,420 INFO L158 Benchmark]: RCFGBuilder took 620.94ms. Allocated memory is still 77.6MB. Free memory was 39.7MB in the beginning and 38.6MB in the end (delta: 1.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,420 INFO L158 Benchmark]: TraceAbstraction took 21805.62ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 37.9MB in the beginning and 69.6MB in the end (delta: -31.7MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,420 INFO L158 Benchmark]: Witness Printer took 40.06ms. Allocated memory is still 163.6MB. Free memory was 69.6MB in the beginning and 66.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:56:57,422 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 54.5MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.42ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 43.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.99ms. Allocated memory is still 77.6MB. Free memory was 43.7MB in the beginning and 41.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.02ms. Allocated memory is still 77.6MB. Free memory was 41.4MB in the beginning and 39.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.94ms. Allocated memory is still 77.6MB. Free memory was 39.7MB in the beginning and 38.6MB in the end (delta: 1.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 21805.62ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 37.9MB in the beginning and 69.6MB in the end (delta: -31.7MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Witness Printer took 40.06ms. Allocated memory is still 163.6MB. Free memory was 69.6MB in the beginning and 66.5MB 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: 19.7s, 232 PlacesBefore, 40 PlacesAfterwards, 241 TransitionsBefore, 33 TransitionsAfterwards, 19292 CoEnabledTransitionPairs, 9 FixpointIterations, 45 TrivialSequentialCompositions, 229 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 42 ConcurrentYvCompositions, 16 ChoiceCompositions, 332 TotalNumberOfCompositions, 18879 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18879, independent: 18879, independent conditional: 0, independent unconditional: 18879, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11168, independent: 11168, independent conditional: 0, independent unconditional: 11168, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18879, independent: 7711, independent conditional: 0, independent unconditional: 7711, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 11168, unknown conditional: 0, unknown unconditional: 11168] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 423 locations, 50 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: 21.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 19.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 177 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 8 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 0.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 10:56:57,456 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