./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:20:03,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:20:03,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:20:03,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:20:03,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:20:03,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:20:03,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:20:03,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:20:03,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:20:03,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:20:03,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:20:03,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:20:03,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:20:03,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:20:03,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:20:03,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:20:03,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:20:03,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:20:03,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:20:03,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:20:03,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:20:03,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:20:03,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:20:03,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:20:03,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:20:03,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:20:03,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:20:03,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:20:03,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:20:03,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:20:03,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:20:03,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:20:03,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:20:03,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:20:03,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:20:03,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:20:03,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:20:03,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:20:03,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:20:03,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:20:03,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:20:03,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:20:03,967 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:20:03,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:20:03,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:20:03,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:20:03,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:20:03,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:20:03,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:20:03,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:20:03,972 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:20:03,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:20:03,973 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:20:03,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:20:03,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:20:03,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:20:03,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:20:03,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:20:03,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:20:03,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:20:03,974 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:20:03,974 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:20:03,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:20:03,975 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:20:03,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:20:03,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:20:03,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:20:03,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:20:03,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:20:03,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:20:03,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:20:03,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:20:03,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:20:03,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:20:03,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:20:03,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:20:03,977 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:20:03,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:20:03,978 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:20:03,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:20:04,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:20:04,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:20:04,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:20:04,345 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:20:04,345 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:20:04,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-09-01 06:20:05,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:20:05,825 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:20:05,829 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-09-01 06:20:05,850 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf92b2742/e83eca74dc8947879606276c180a9216/FLAGf29d2986f [2023-09-01 06:20:05,872 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf92b2742/e83eca74dc8947879606276c180a9216 [2023-09-01 06:20:05,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:20:05,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:20:05,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:20:05,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:20:05,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:20:05,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:20:05" (1/1) ... [2023-09-01 06:20:05,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1698f637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:05, skipping insertion in model container [2023-09-01 06:20:05,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:20:05" (1/1) ... [2023-09-01 06:20:05,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:20:05,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:20:06,112 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-09-01 06:20:06,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:20:06,287 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:20:06,299 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-09-01 06:20:06,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:20:06,369 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:20:06,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06 WrapperNode [2023-09-01 06:20:06,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:20:06,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:20:06,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:20:06,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:20:06,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,405 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 80 [2023-09-01 06:20:06,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:20:06,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:20:06,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:20:06,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:20:06,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:20:06,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:20:06,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:20:06,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:20:06,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (1/1) ... [2023-09-01 06:20:06,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:20:06,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:20:06,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 06:20:06,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 06:20:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:20:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:20:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:20:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:20:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:20:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:20:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:20:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:20:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:20:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:20:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:20:06,516 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:20:06,670 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:20:06,672 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:20:06,840 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:20:06,846 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:20:06,852 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:20:06,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:20:06 BoogieIcfgContainer [2023-09-01 06:20:06,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:20:06,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:20:06,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:20:06,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:20:06,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:20:05" (1/3) ... [2023-09-01 06:20:06,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427fb9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:20:06, skipping insertion in model container [2023-09-01 06:20:06,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:06" (2/3) ... [2023-09-01 06:20:06,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427fb9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:20:06, skipping insertion in model container [2023-09-01 06:20:06,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:20:06" (3/3) ... [2023-09-01 06:20:06,863 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-09-01 06:20:06,870 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:20:06,879 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:20:06,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 06:20:06,879 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:20:06,966 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 06:20:07,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 184 flow [2023-09-01 06:20:07,068 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2023-09-01 06:20:07,068 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:20:07,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 4/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-09-01 06:20:07,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 184 flow [2023-09-01 06:20:07,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 80 transitions, 163 flow [2023-09-01 06:20:07,082 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:20:07,101 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 80 transitions, 163 flow [2023-09-01 06:20:07,105 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 80 transitions, 163 flow [2023-09-01 06:20:07,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 80 transitions, 163 flow [2023-09-01 06:20:07,137 INFO L130 PetriNetUnfolder]: 4/80 cut-off events. [2023-09-01 06:20:07,138 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:20:07,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 4/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-09-01 06:20:07,141 INFO L119 LiptonReduction]: Number of co-enabled transitions 1296 [2023-09-01 06:20:09,181 INFO L134 LiptonReduction]: Checked pairs total: 2372 [2023-09-01 06:20:09,181 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-09-01 06:20:09,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:20:09,198 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;@34096413, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:20:09,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-09-01 06:20:09,201 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 06:20:09,201 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:20:09,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:09,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:20:09,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:09,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:09,206 INFO L85 PathProgramCache]: Analyzing trace with hash 9992438, now seen corresponding path program 1 times [2023-09-01 06:20:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:09,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117271317] [2023-09-01 06:20:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:09,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:09,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:09,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117271317] [2023-09-01 06:20:09,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117271317] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:09,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:20:09,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112390378] [2023-09-01 06:20:09,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:09,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:20:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:09,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:20:09,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:20:09,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-09-01 06:20:09,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:09,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-09-01 06:20:09,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:09,603 INFO L130 PetriNetUnfolder]: 64/156 cut-off events. [2023-09-01 06:20:09,603 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:20:09,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 156 events. 64/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 567 event pairs, 23 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 303. Up to 96 conditions per place. [2023-09-01 06:20:09,606 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 24 selfloop transitions, 5 changer transitions 4/34 dead transitions. [2023-09-01 06:20:09,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 34 transitions, 137 flow [2023-09-01 06:20:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:20:09,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:20:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-09-01 06:20:09,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5214723926380368 [2023-09-01 06:20:09,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-09-01 06:20:09,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-09-01 06:20:09,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:09,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-09-01 06:20:09,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,638 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 255 transitions. [2023-09-01 06:20:09,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 34 transitions, 137 flow [2023-09-01 06:20:09,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 34 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:20:09,643 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 74 flow [2023-09-01 06:20:09,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2023-09-01 06:20:09,649 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2023-09-01 06:20:09,649 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 74 flow [2023-09-01 06:20:09,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:09,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:20:09,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:20:09,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:09,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash 9992439, now seen corresponding path program 1 times [2023-09-01 06:20:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171012026] [2023-09-01 06:20:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:09,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:09,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171012026] [2023-09-01 06:20:09,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171012026] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:09,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:20:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958281292] [2023-09-01 06:20:09,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:09,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:20:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:09,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:20:09,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:20:09,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-09-01 06:20:09,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:09,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-09-01 06:20:09,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:09,812 INFO L130 PetriNetUnfolder]: 45/116 cut-off events. [2023-09-01 06:20:09,812 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-09-01 06:20:09,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 116 events. 45/116 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 395 event pairs, 22 based on Foata normal form. 3/119 useless extension candidates. Maximal degree in co-relation 274. Up to 95 conditions per place. [2023-09-01 06:20:09,814 INFO L137 encePairwiseOnDemand]: 158/163 looper letters, 22 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2023-09-01 06:20:09,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 142 flow [2023-09-01 06:20:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:20:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:20:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2023-09-01 06:20:09,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49693251533742333 [2023-09-01 06:20:09,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2023-09-01 06:20:09,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2023-09-01 06:20:09,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:09,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2023-09-01 06:20:09,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,839 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 74 flow. Second operand 3 states and 243 transitions. [2023-09-01 06:20:09,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 142 flow [2023-09-01 06:20:09,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:20:09,854 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 84 flow [2023-09-01 06:20:09,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-09-01 06:20:09,855 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2023-09-01 06:20:09,855 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 84 flow [2023-09-01 06:20:09,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:09,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:09,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:09,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:20:09,856 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:09,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:09,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1332414870, now seen corresponding path program 1 times [2023-09-01 06:20:09,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:09,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96556011] [2023-09-01 06:20:09,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:09,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:09,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:09,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96556011] [2023-09-01 06:20:09,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96556011] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:09,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:09,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:20:09,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780534159] [2023-09-01 06:20:09,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:09,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:20:09,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:09,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:20:09,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:20:10,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-09-01 06:20:10,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:10,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-09-01 06:20:10,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:10,053 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2023-09-01 06:20:10,054 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-09-01 06:20:10,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 24 events. 0/24 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 11/35 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2023-09-01 06:20:10,054 INFO L137 encePairwiseOnDemand]: 160/163 looper letters, 14 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-09-01 06:20:10,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 98 flow [2023-09-01 06:20:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:20:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:20:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2023-09-01 06:20:10,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48466257668711654 [2023-09-01 06:20:10,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2023-09-01 06:20:10,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2023-09-01 06:20:10,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:10,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2023-09-01 06:20:10,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,063 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 84 flow. Second operand 3 states and 237 transitions. [2023-09-01 06:20:10,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 98 flow [2023-09-01 06:20:10,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 92 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 06:20:10,065 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 64 flow [2023-09-01 06:20:10,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-09-01 06:20:10,067 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2023-09-01 06:20:10,067 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 64 flow [2023-09-01 06:20:10,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:10,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:10,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:20:10,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:10,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:10,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1649281607, now seen corresponding path program 1 times [2023-09-01 06:20:10,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:10,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012465218] [2023-09-01 06:20:10,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:10,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:10,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012465218] [2023-09-01 06:20:10,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012465218] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:10,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:10,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:20:10,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308832392] [2023-09-01 06:20:10,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:10,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 06:20:10,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:10,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 06:20:10,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 06:20:10,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 163 [2023-09-01 06:20:10,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:10,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 163 [2023-09-01 06:20:10,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:10,315 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2023-09-01 06:20:10,316 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 06:20:10,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 23 events. 0/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-09-01 06:20:10,320 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 16 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2023-09-01 06:20:10,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 122 flow [2023-09-01 06:20:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:20:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:20:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 536 transitions. [2023-09-01 06:20:10,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110429447852761 [2023-09-01 06:20:10,323 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 536 transitions. [2023-09-01 06:20:10,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 536 transitions. [2023-09-01 06:20:10,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:10,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 536 transitions. [2023-09-01 06:20:10,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,334 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,334 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 64 flow. Second operand 8 states and 536 transitions. [2023-09-01 06:20:10,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 122 flow [2023-09-01 06:20:10,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:20:10,336 INFO L231 Difference]: Finished difference. Result has 36 places, 21 transitions, 99 flow [2023-09-01 06:20:10,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=99, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2023-09-01 06:20:10,338 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 13 predicate places. [2023-09-01 06:20:10,338 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 21 transitions, 99 flow [2023-09-01 06:20:10,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:10,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:10,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:20:10,340 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:10,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:10,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1649281533, now seen corresponding path program 1 times [2023-09-01 06:20:10,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:10,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451344540] [2023-09-01 06:20:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:10,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:10,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451344540] [2023-09-01 06:20:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451344540] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:10,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:20:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874007755] [2023-09-01 06:20:10,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:10,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 06:20:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:10,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 06:20:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 06:20:10,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 163 [2023-09-01 06:20:10,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 21 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:10,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 163 [2023-09-01 06:20:10,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:10,575 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2023-09-01 06:20:10,576 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-09-01 06:20:10,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 22 events. 0/22 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-09-01 06:20:10,576 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 13 selfloop transitions, 4 changer transitions 5/22 dead transitions. [2023-09-01 06:20:10,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 22 transitions, 144 flow [2023-09-01 06:20:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:20:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:20:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 471 transitions. [2023-09-01 06:20:10,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127957931638913 [2023-09-01 06:20:10,579 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 471 transitions. [2023-09-01 06:20:10,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 471 transitions. [2023-09-01 06:20:10,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:10,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 471 transitions. [2023-09-01 06:20:10,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,584 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,584 INFO L175 Difference]: Start difference. First operand has 36 places, 21 transitions, 99 flow. Second operand 7 states and 471 transitions. [2023-09-01 06:20:10,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 22 transitions, 144 flow [2023-09-01 06:20:10,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 22 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:20:10,588 INFO L231 Difference]: Finished difference. Result has 38 places, 17 transitions, 70 flow [2023-09-01 06:20:10,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=17} [2023-09-01 06:20:10,591 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 15 predicate places. [2023-09-01 06:20:10,592 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 17 transitions, 70 flow [2023-09-01 06:20:10,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:10,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:10,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:20:10,593 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:10,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:10,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1319873243, now seen corresponding path program 1 times [2023-09-01 06:20:10,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:10,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010161989] [2023-09-01 06:20:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:10,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:10,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:10,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010161989] [2023-09-01 06:20:10,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010161989] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:10,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:10,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:20:10,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046650370] [2023-09-01 06:20:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:10,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:20:10,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:10,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:20:10,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:20:10,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-09-01 06:20:10,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 17 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:10,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-09-01 06:20:10,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:10,768 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2023-09-01 06:20:10,768 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 06:20:10,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 17 events. 0/17 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-09-01 06:20:10,769 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 12 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2023-09-01 06:20:10,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 17 transitions, 99 flow [2023-09-01 06:20:10,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:20:10,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:20:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 372 transitions. [2023-09-01 06:20:10,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.456441717791411 [2023-09-01 06:20:10,771 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 372 transitions. [2023-09-01 06:20:10,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 372 transitions. [2023-09-01 06:20:10,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:10,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 372 transitions. [2023-09-01 06:20:10,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,775 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,775 INFO L175 Difference]: Start difference. First operand has 38 places, 17 transitions, 70 flow. Second operand 5 states and 372 transitions. [2023-09-01 06:20:10,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 17 transitions, 99 flow [2023-09-01 06:20:10,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 17 transitions, 86 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-09-01 06:20:10,778 INFO L231 Difference]: Finished difference. Result has 30 places, 16 transitions, 57 flow [2023-09-01 06:20:10,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2023-09-01 06:20:10,781 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 7 predicate places. [2023-09-01 06:20:10,781 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 57 flow [2023-09-01 06:20:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:10,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:10,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:20:10,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:10,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1319873242, now seen corresponding path program 1 times [2023-09-01 06:20:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:10,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608113130] [2023-09-01 06:20:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:10,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:10,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:10,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608113130] [2023-09-01 06:20:10,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608113130] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:10,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:10,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:20:10,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095127386] [2023-09-01 06:20:10,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:10,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:20:10,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:10,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:20:10,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:20:10,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-09-01 06:20:10,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:10,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-09-01 06:20:10,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:10,915 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2023-09-01 06:20:10,915 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:20:10,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 16 events. 0/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-09-01 06:20:10,916 INFO L137 encePairwiseOnDemand]: 157/163 looper letters, 9 selfloop transitions, 5 changer transitions 1/16 dead transitions. [2023-09-01 06:20:10,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 16 transitions, 85 flow [2023-09-01 06:20:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:20:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:20:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 371 transitions. [2023-09-01 06:20:10,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45521472392638035 [2023-09-01 06:20:10,918 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 371 transitions. [2023-09-01 06:20:10,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 371 transitions. [2023-09-01 06:20:10,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:10,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 371 transitions. [2023-09-01 06:20:10,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,921 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,922 INFO L175 Difference]: Start difference. First operand has 30 places, 16 transitions, 57 flow. Second operand 5 states and 371 transitions. [2023-09-01 06:20:10,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 16 transitions, 85 flow [2023-09-01 06:20:10,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 06:20:10,925 INFO L231 Difference]: Finished difference. Result has 27 places, 15 transitions, 52 flow [2023-09-01 06:20:10,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=52, PETRI_PLACES=27, PETRI_TRANSITIONS=15} [2023-09-01 06:20:10,926 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2023-09-01 06:20:10,926 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 15 transitions, 52 flow [2023-09-01 06:20:10,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:10,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:10,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:10,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:20:10,927 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:10,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:10,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1749671246, now seen corresponding path program 1 times [2023-09-01 06:20:10,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:10,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427626927] [2023-09-01 06:20:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:10,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:11,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:11,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427626927] [2023-09-01 06:20:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427626927] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:11,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:11,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:20:11,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485626759] [2023-09-01 06:20:11,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:11,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:20:11,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:11,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:20:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:20:11,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 163 [2023-09-01 06:20:11,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 15 transitions, 52 flow. Second operand has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:11,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 163 [2023-09-01 06:20:11,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:11,139 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-09-01 06:20:11,139 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:20:11,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-09-01 06:20:11,139 INFO L137 encePairwiseOnDemand]: 157/163 looper letters, 9 selfloop transitions, 5 changer transitions 1/15 dead transitions. [2023-09-01 06:20:11,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 15 transitions, 82 flow [2023-09-01 06:20:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:20:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:20:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 450 transitions. [2023-09-01 06:20:11,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3943908851884312 [2023-09-01 06:20:11,142 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 450 transitions. [2023-09-01 06:20:11,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 450 transitions. [2023-09-01 06:20:11,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:11,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 450 transitions. [2023-09-01 06:20:11,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.28571428571429) internal successors, (450), 7 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,146 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,146 INFO L175 Difference]: Start difference. First operand has 27 places, 15 transitions, 52 flow. Second operand 7 states and 450 transitions. [2023-09-01 06:20:11,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 15 transitions, 82 flow [2023-09-01 06:20:11,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 15 transitions, 72 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:20:11,147 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 49 flow [2023-09-01 06:20:11,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=49, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2023-09-01 06:20:11,148 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2023-09-01 06:20:11,148 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 49 flow [2023-09-01 06:20:11,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:11,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:11,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 06:20:11,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:20:11,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:11,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1749671320, now seen corresponding path program 1 times [2023-09-01 06:20:11,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:11,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507684687] [2023-09-01 06:20:11,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:11,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:11,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:11,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507684687] [2023-09-01 06:20:11,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507684687] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:11,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:11,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:20:11,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715872420] [2023-09-01 06:20:11,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:11,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:20:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:11,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:20:11,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:20:11,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 163 [2023-09-01 06:20:11,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 49 flow. Second operand has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:11,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 163 [2023-09-01 06:20:11,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:11,390 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-09-01 06:20:11,390 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:20:11,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 14 events. 0/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-09-01 06:20:11,391 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-09-01 06:20:11,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 14 transitions, 77 flow [2023-09-01 06:20:11,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:20:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:20:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 511 transitions. [2023-09-01 06:20:11,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3918711656441718 [2023-09-01 06:20:11,394 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 511 transitions. [2023-09-01 06:20:11,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 511 transitions. [2023-09-01 06:20:11,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:11,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 511 transitions. [2023-09-01 06:20:11,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 63.875) internal successors, (511), 8 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,400 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,401 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 49 flow. Second operand 8 states and 511 transitions. [2023-09-01 06:20:11,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 14 transitions, 77 flow [2023-09-01 06:20:11,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 14 transitions, 70 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:20:11,402 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-09-01 06:20:11,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-09-01 06:20:11,403 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2023-09-01 06:20:11,403 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-09-01 06:20:11,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:11,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-09-01 06:20:11,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-09-01 06:20:11,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-09-01 06:20:11,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-09-01 06:20:11,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-09-01 06:20:11,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 06:20:11,413 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:11,418 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:20:11,418 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:20:11,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:20:11 BasicIcfg [2023-09-01 06:20:11,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:20:11,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:20:11,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:20:11,424 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:20:11,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:20:06" (3/4) ... [2023-09-01 06:20:11,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:20:11,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:20:11,437 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-09-01 06:20:11,438 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 06:20:11,438 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:20:11,438 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 06:20:11,474 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:20:11,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:20:11,475 INFO L158 Benchmark]: Toolchain (without parser) took 5599.92ms. Allocated memory was 73.4MB in the beginning and 117.4MB in the end (delta: 44.0MB). Free memory was 44.0MB in the beginning and 65.9MB in the end (delta: -21.9MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,476 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:20:11,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.35ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 42.7MB in the end (delta: 935.3kB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.38ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 40.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,477 INFO L158 Benchmark]: Boogie Preprocessor took 21.00ms. Allocated memory is still 73.4MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,477 INFO L158 Benchmark]: RCFGBuilder took 426.84ms. Allocated memory is still 73.4MB. Free memory was 39.2MB in the beginning and 47.1MB in the end (delta: -7.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,477 INFO L158 Benchmark]: TraceAbstraction took 4566.70ms. Allocated memory was 73.4MB in the beginning and 117.4MB in the end (delta: 44.0MB). Free memory was 46.4MB in the beginning and 69.0MB in the end (delta: -22.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,478 INFO L158 Benchmark]: Witness Printer took 51.44ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 65.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:20:11,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.35ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 42.7MB in the end (delta: 935.3kB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.38ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 40.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.00ms. Allocated memory is still 73.4MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.84ms. Allocated memory is still 73.4MB. Free memory was 39.2MB in the beginning and 47.1MB in the end (delta: -7.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4566.70ms. Allocated memory was 73.4MB in the beginning and 117.4MB in the end (delta: 44.0MB). Free memory was 46.4MB in the beginning and 69.0MB in the end (delta: -22.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 51.44ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 65.9MB 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: 2.1s, 80 PlacesBefore, 23 PlacesAfterwards, 80 TransitionsBefore, 20 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1365, independent: 1223, independent conditional: 0, independent unconditional: 1223, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 733, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1365, independent: 526, independent conditional: 0, independent unconditional: 526, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 733, unknown conditional: 0, unknown unconditional: 733] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 5 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: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 551 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 349 mSDsluCounter, 401 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 334 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 67 mSDtfsCounter, 862 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=4, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:20:11,507 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