./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_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 cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:46:03,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:46:03,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:46:03,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:46:03,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:46:03,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:46:03,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:46:03,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:46:03,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:46:03,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:46:03,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:46:03,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:46:03,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:46:03,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:46:03,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:46:03,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:46:03,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:46:03,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:46:03,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:46:03,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:46:03,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:46:03,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:46:03,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:46:03,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:46:03,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:46:03,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:46:03,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:46:03,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:46:03,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:46:03,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:46:03,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:46:03,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:46:03,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:46:03,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:46:03,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:46:03,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:46:03,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:46:03,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:46:03,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:46:03,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:46:03,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:46:03,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:46:03,330 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:46:03,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:46:03,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:46:03,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:46:03,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:46:03,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:46:03,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:46:03,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:46:03,334 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:46:03,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:46:03,335 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:46:03,335 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:46:03,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:46:03,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:46:03,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:46:03,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:46:03,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:46:03,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:46:03,336 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:46:03,337 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:46:03,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:46:03,337 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:46:03,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:46:03,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:46:03,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:46:03,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:46:03,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:46:03,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:46:03,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:46:03,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:46:03,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:46:03,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:46:03,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:46:03,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:46:03,340 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:46:03,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:46:03,340 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:46:03,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:46:03,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:46:03,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:46:03,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:46:03,686 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:46:03,686 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:46:03,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2023-08-30 10:46:04,908 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:46:05,217 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:46:05,218 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2023-08-30 10:46:05,235 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3e5a635c/f19a9d4029c84763b6ad0ee0463eed39/FLAG46cc121ea [2023-08-30 10:46:05,259 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3e5a635c/f19a9d4029c84763b6ad0ee0463eed39 [2023-08-30 10:46:05,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:46:05,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:46:05,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:46:05,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:46:05,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:46:05,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5c5291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05, skipping insertion in model container [2023-08-30 10:46:05,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:46:05,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:46:05,473 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/36-apron_21-traces-cluster-based_true.i[1092,1105] [2023-08-30 10:46:05,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:46:05,676 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:46:05,687 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/36-apron_21-traces-cluster-based_true.i[1092,1105] [2023-08-30 10:46:05,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:46:05,770 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:46:05,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05 WrapperNode [2023-08-30 10:46:05,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:46:05,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:46:05,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:46:05,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:46:05,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,851 INFO L138 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2023-08-30 10:46:05,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:46:05,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:46:05,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:46:05,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:46:05,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:46:05,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:46:05,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:46:05,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:46:05,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (1/1) ... [2023-08-30 10:46:05,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:46:05,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:46:05,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 10:46:05,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 10:46:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 10:46:05,976 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 10:46:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:46:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 10:46:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:46:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:46:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-30 10:46:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-30 10:46:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 10:46:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 10:46:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:46:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:46:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:46:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:46:05,979 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 10:46:06,092 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:46:06,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:46:06,416 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:46:06,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:46:06,425 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 10:46:06,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:06 BoogieIcfgContainer [2023-08-30 10:46:06,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:46:06,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:46:06,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:46:06,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:46:06,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:46:05" (1/3) ... [2023-08-30 10:46:06,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c65c4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:06, skipping insertion in model container [2023-08-30 10:46:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:05" (2/3) ... [2023-08-30 10:46:06,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c65c4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:06, skipping insertion in model container [2023-08-30 10:46:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:06" (3/3) ... [2023-08-30 10:46:06,435 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2023-08-30 10:46:06,442 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:46:06,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:46:06,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 10:46:06,451 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:46:06,526 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 10:46:06,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 162 transitions, 339 flow [2023-08-30 10:46:06,619 INFO L130 PetriNetUnfolder]: 5/159 cut-off events. [2023-08-30 10:46:06,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:06,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 159 events. 5/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 258 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-08-30 10:46:06,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 162 transitions, 339 flow [2023-08-30 10:46:06,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 159 transitions, 327 flow [2023-08-30 10:46:06,640 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:46:06,659 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 159 transitions, 327 flow [2023-08-30 10:46:06,662 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 159 transitions, 327 flow [2023-08-30 10:46:06,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 159 transitions, 327 flow [2023-08-30 10:46:06,696 INFO L130 PetriNetUnfolder]: 5/159 cut-off events. [2023-08-30 10:46:06,696 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:06,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 159 events. 5/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 258 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-08-30 10:46:06,703 INFO L119 LiptonReduction]: Number of co-enabled transitions 9406 [2023-08-30 10:46:11,162 INFO L134 LiptonReduction]: Checked pairs total: 17785 [2023-08-30 10:46:11,163 INFO L136 LiptonReduction]: Total number of compositions: 150 [2023-08-30 10:46:11,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:46:11,181 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;@298601ad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:46:11,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 10:46:11,185 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 10:46:11,185 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:11,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:11,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:46:11,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-08-30 10:46:11,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:11,191 INFO L85 PathProgramCache]: Analyzing trace with hash 570824803, now seen corresponding path program 1 times [2023-08-30 10:46:11,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:11,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40957217] [2023-08-30 10:46:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:11,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:11,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40957217] [2023-08-30 10:46:11,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40957217] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:11,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:11,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:46:11,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469188845] [2023-08-30 10:46:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:11,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:11,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:11,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:11,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:11,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 312 [2023-08-30 10:46:11,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:11,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:11,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 312 [2023-08-30 10:46:11,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:11,833 INFO L130 PetriNetUnfolder]: 1556/2609 cut-off events. [2023-08-30 10:46:11,833 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-08-30 10:46:11,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4992 conditions, 2609 events. 1556/2609 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 16432 event pairs, 282 based on Foata normal form. 0/2398 useless extension candidates. Maximal degree in co-relation 4981. Up to 1855 conditions per place. [2023-08-30 10:46:11,846 INFO L137 encePairwiseOnDemand]: 310/312 looper letters, 32 selfloop transitions, 1 changer transitions 8/47 dead transitions. [2023-08-30 10:46:11,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 185 flow [2023-08-30 10:46:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:11,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2023-08-30 10:46:11,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5096153846153846 [2023-08-30 10:46:11,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2023-08-30 10:46:11,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2023-08-30 10:46:11,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:11,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2023-08-30 10:46:11,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:11,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:11,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:11,874 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 77 flow. Second operand 3 states and 477 transitions. [2023-08-30 10:46:11,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 185 flow [2023-08-30 10:46:11,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 10:46:11,878 INFO L231 Difference]: Finished difference. Result has 41 places, 25 transitions, 58 flow [2023-08-30 10:46:11,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=41, PETRI_TRANSITIONS=25} [2023-08-30 10:46:11,883 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2023-08-30 10:46:11,883 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 25 transitions, 58 flow [2023-08-30 10:46:11,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:11,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:11,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:46:11,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:46:11,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-08-30 10:46:11,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:11,885 INFO L85 PathProgramCache]: Analyzing trace with hash 570824840, now seen corresponding path program 1 times [2023-08-30 10:46:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:11,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535094704] [2023-08-30 10:46:11,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:11,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:11,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:11,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535094704] [2023-08-30 10:46:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535094704] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:11,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:11,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:46:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227591452] [2023-08-30 10:46:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:11,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:11,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:11,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:11,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:11,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 312 [2023-08-30 10:46:11,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 25 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:11,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:11,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 312 [2023-08-30 10:46:11,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:12,077 INFO L130 PetriNetUnfolder]: 464/742 cut-off events. [2023-08-30 10:46:12,077 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2023-08-30 10:46:12,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 742 events. 464/742 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3302 event pairs, 213 based on Foata normal form. 83/802 useless extension candidates. Maximal degree in co-relation 1559. Up to 530 conditions per place. [2023-08-30 10:46:12,080 INFO L137 encePairwiseOnDemand]: 310/312 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2023-08-30 10:46:12,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 152 flow [2023-08-30 10:46:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2023-08-30 10:46:12,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5064102564102564 [2023-08-30 10:46:12,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2023-08-30 10:46:12,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2023-08-30 10:46:12,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:12,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2023-08-30 10:46:12,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:12,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:12,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:12,090 INFO L175 Difference]: Start difference. First operand has 41 places, 25 transitions, 58 flow. Second operand 3 states and 474 transitions. [2023-08-30 10:46:12,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 152 flow [2023-08-30 10:46:12,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:12,091 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-08-30 10:46:12,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2023-08-30 10:46:12,092 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2023-08-30 10:46:12,092 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-08-30 10:46:12,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:12,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-08-30 10:46:12,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2023-08-30 10:46:12,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-30 10:46:12,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-30 10:46:12,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-30 10:46:12,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-30 10:46:12,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-30 10:46:12,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:46:12,097 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 10:46:12,102 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:46:12,102 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:46:12,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:46:12 BasicIcfg [2023-08-30 10:46:12,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:46:12,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:46:12,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:46:12,107 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:46:12,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:06" (3/4) ... [2023-08-30 10:46:12,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 10:46:12,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-08-30 10:46:12,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2023-08-30 10:46:12,115 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 10:46:12,118 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 10:46:12,118 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 10:46:12,118 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 10:46:12,119 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 10:46:12,149 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:46:12,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:46:12,150 INFO L158 Benchmark]: Toolchain (without parser) took 6887.24ms. Allocated memory was 75.5MB in the beginning and 121.6MB in the end (delta: 46.1MB). Free memory was 52.6MB in the beginning and 67.9MB in the end (delta: -15.2MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,151 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 53.9MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:46:12,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.73ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 32.9MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.26ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 32.9MB in the beginning and 80.4MB in the end (delta: -47.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,152 INFO L158 Benchmark]: Boogie Preprocessor took 56.30ms. Allocated memory is still 100.7MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,152 INFO L158 Benchmark]: RCFGBuilder took 518.35ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 61.1MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,152 INFO L158 Benchmark]: TraceAbstraction took 5677.06ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 70.0MB in the end (delta: -9.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,153 INFO L158 Benchmark]: Witness Printer took 43.35ms. Allocated memory is still 121.6MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:46:12,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 53.9MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.73ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 32.9MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.26ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 32.9MB in the beginning and 80.4MB in the end (delta: -47.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.30ms. Allocated memory is still 100.7MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 518.35ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 61.1MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5677.06ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 70.0MB in the end (delta: -9.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * Witness Printer took 43.35ms. Allocated memory is still 121.6MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 164 PlacesBefore, 43 PlacesAfterwards, 159 TransitionsBefore, 34 TransitionsAfterwards, 9406 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 4 ChoiceCompositions, 150 TotalNumberOfCompositions, 17785 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9089, independent: 8791, independent conditional: 0, independent unconditional: 8791, dependent: 298, dependent conditional: 0, dependent unconditional: 298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5330, independent: 5259, independent conditional: 0, independent unconditional: 5259, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9089, independent: 3532, independent conditional: 0, independent unconditional: 3532, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 5330, unknown conditional: 0, unknown unconditional: 5330] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 159, Positive conditional cache size: 0, Positive unconditional cache size: 159, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: 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 7 procedures, 235 locations, 7 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: 5.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 10 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 10:46:12,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE