./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/pthread-wmm/safe006_power.oepc-thin000_power.oepc.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 e1a7472923aa95b61749a468b52dfc65e03dead5bf647c94f71a6e156dc586ae --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:02:47,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:02:47,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:02:47,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:02:47,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:02:47,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:02:47,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:02:47,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:02:47,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:02:47,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:02:47,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:02:47,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:02:47,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:02:47,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:02:47,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:02:47,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:02:47,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:02:47,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:02:47,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:02:47,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:02:47,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:02:47,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:02:47,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:02:47,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:02:47,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:02:47,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:02:47,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:02:47,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:02:47,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:02:47,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:02:47,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:02:47,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:02:47,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:02:47,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:02:47,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:02:47,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:02:47,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:02:47,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:02:47,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:02:47,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:02:47,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:02:47,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:02:48,015 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:02:48,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:02:48,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:02:48,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:02:48,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:02:48,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:02:48,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:02:48,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:02:48,019 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:02:48,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:02:48,020 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:02:48,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:02:48,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:02:48,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:02:48,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:02:48,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:02:48,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:02:48,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:02:48,021 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:02:48,021 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:02:48,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:02:48,022 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:02:48,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:02:48,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:02:48,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:02:48,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:02:48,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:02:48,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:02:48,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:02:48,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:02:48,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:02:48,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:02:48,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:02:48,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:02:48,024 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:02:48,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:02:48,025 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:02:48,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1a7472923aa95b61749a468b52dfc65e03dead5bf647c94f71a6e156dc586ae Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:02:48,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:02:48,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:02:48,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:02:48,354 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:02:48,355 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:02:48,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i [2023-08-30 13:02:49,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:02:49,672 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:02:49,673 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i [2023-08-30 13:02:49,697 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/720ac7f5a/21338d845975417b8d3497bf00494c37/FLAG79406295b [2023-08-30 13:02:49,708 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/720ac7f5a/21338d845975417b8d3497bf00494c37 [2023-08-30 13:02:49,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:02:49,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:02:49,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:02:49,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:02:49,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:02:49,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:02:49" (1/1) ... [2023-08-30 13:02:49,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca03dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:49, skipping insertion in model container [2023-08-30 13:02:49,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:02:49" (1/1) ... [2023-08-30 13:02:49,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:02:49,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:02:49,883 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i[1014,1027] [2023-08-30 13:02:50,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:02:50,105 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:02:50,115 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_power.oepc-thin000_power.oepc.i[1014,1027] [2023-08-30 13:02:50,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:02:50,178 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:02:50,178 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:02:50,184 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:02:50,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50 WrapperNode [2023-08-30 13:02:50,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:02:50,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:02:50,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:02:50,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:02:50,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,253 INFO L138 Inliner]: procedures = 175, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2023-08-30 13:02:50,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:02:50,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:02:50,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:02:50,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:02:50,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:02:50,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:02:50,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:02:50,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:02:50,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (1/1) ... [2023-08-30 13:02:50,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:02:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:02:50,346 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 13:02:50,366 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 13:02:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:02:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:02:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:02:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:02:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:02:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:02:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:02:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:02:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:02:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:02:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:02:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:02:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:02:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:02:50,386 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 13:02:50,555 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:02:50,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:02:50,930 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:02:51,229 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:02:51,229 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:02:51,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:02:51 BoogieIcfgContainer [2023-08-30 13:02:51,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:02:51,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:02:51,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:02:51,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:02:51,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:02:49" (1/3) ... [2023-08-30 13:02:51,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d73a4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:02:51, skipping insertion in model container [2023-08-30 13:02:51,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:50" (2/3) ... [2023-08-30 13:02:51,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d73a4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:02:51, skipping insertion in model container [2023-08-30 13:02:51,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:02:51" (3/3) ... [2023-08-30 13:02:51,254 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_power.oepc-thin000_power.oepc.i [2023-08-30 13:02:51,261 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:02:51,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:02:51,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 13:02:51,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:02:51,342 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:02:51,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 106 transitions, 222 flow [2023-08-30 13:02:51,434 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2023-08-30 13:02:51,435 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:02:51,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 13:02:51,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 106 transitions, 222 flow [2023-08-30 13:02:51,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 104 transitions, 214 flow [2023-08-30 13:02:51,452 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:02:51,476 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 104 transitions, 214 flow [2023-08-30 13:02:51,480 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 104 transitions, 214 flow [2023-08-30 13:02:51,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 214 flow [2023-08-30 13:02:51,525 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2023-08-30 13:02:51,525 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:02:51,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 13:02:51,528 INFO L119 LiptonReduction]: Number of co-enabled transitions 1140 [2023-08-30 13:02:58,162 INFO L134 LiptonReduction]: Checked pairs total: 3505 [2023-08-30 13:02:58,163 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-30 13:02:58,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:02:58,179 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;@295c50d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:02:58,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 13:02:58,186 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:02:58,187 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:02:58,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:58,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:02:58,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:02:58,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:58,198 INFO L85 PathProgramCache]: Analyzing trace with hash 625997562, now seen corresponding path program 1 times [2023-08-30 13:02:58,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:58,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571649045] [2023-08-30 13:02:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:58,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:58,506 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 13:02:58,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:58,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571649045] [2023-08-30 13:02:58,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571649045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:58,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:58,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:02:58,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755731730] [2023-08-30 13:02:58,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:58,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:02:58,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:58,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:02:58,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:02:58,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 199 [2023-08-30 13:02:58,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 13:02:58,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:58,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 199 [2023-08-30 13:02:58,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:58,717 INFO L130 PetriNetUnfolder]: 73/149 cut-off events. [2023-08-30 13:02:58,718 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:02:58,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 149 events. 73/149 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 504 event pairs, 25 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 295. Up to 91 conditions per place. [2023-08-30 13:02:58,721 INFO L137 encePairwiseOnDemand]: 192/199 looper letters, 21 selfloop transitions, 3 changer transitions 2/28 dead transitions. [2023-08-30 13:02:58,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 117 flow [2023-08-30 13:02:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:02:58,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:02:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2023-08-30 13:02:58,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025125628140703 [2023-08-30 13:02:58,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2023-08-30 13:02:58,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2023-08-30 13:02:58,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:58,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2023-08-30 13:02:58,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 13:02:58,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 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 13:02:58,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 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 13:02:58,759 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 42 flow. Second operand 3 states and 300 transitions. [2023-08-30 13:02:58,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 117 flow [2023-08-30 13:02:58,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:02:58,766 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2023-08-30 13:02:58,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-08-30 13:02:58,771 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-30 13:02:58,771 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2023-08-30 13:02:58,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 13:02:58,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:58,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:02:58,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:02:58,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:02:58,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:58,784 INFO L85 PathProgramCache]: Analyzing trace with hash 607736300, now seen corresponding path program 1 times [2023-08-30 13:02:58,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:58,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842362496] [2023-08-30 13:02:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:58,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:58,911 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 13:02:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842362496] [2023-08-30 13:02:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842362496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:58,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:58,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:02:58,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860005707] [2023-08-30 13:02:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:58,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:02:58,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:02:58,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:02:58,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 199 [2023-08-30 13:02:58,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 13:02:58,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:58,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 199 [2023-08-30 13:02:58,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:59,020 INFO L130 PetriNetUnfolder]: 60/124 cut-off events. [2023-08-30 13:02:59,022 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 13:02:59,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 124 events. 60/124 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 390 event pairs, 25 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 297. Up to 65 conditions per place. [2023-08-30 13:02:59,024 INFO L137 encePairwiseOnDemand]: 194/199 looper letters, 19 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-08-30 13:02:59,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 111 flow [2023-08-30 13:02:59,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:02:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:02:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2023-08-30 13:02:59,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4824120603015075 [2023-08-30 13:02:59,027 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2023-08-30 13:02:59,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2023-08-30 13:02:59,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:59,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2023-08-30 13:02:59,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 13:02:59,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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 13:02:59,033 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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 13:02:59,033 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 4 states and 384 transitions. [2023-08-30 13:02:59,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 111 flow [2023-08-30 13:02:59,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:02:59,035 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 52 flow [2023-08-30 13:02:59,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=4, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-08-30 13:02:59,036 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-30 13:02:59,036 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 52 flow [2023-08-30 13:02:59,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 13:02:59,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:59,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:02:59,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:02:59,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:02:59,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash 957297135, now seen corresponding path program 1 times [2023-08-30 13:02:59,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:59,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986678423] [2023-08-30 13:02:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:59,211 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 13:02:59,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:59,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986678423] [2023-08-30 13:02:59,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986678423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:59,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:59,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:02:59,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340880050] [2023-08-30 13:02:59,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:59,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:02:59,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:59,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:02:59,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:02:59,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 199 [2023-08-30 13:02:59,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 13:02:59,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:59,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 199 [2023-08-30 13:02:59,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:59,295 INFO L130 PetriNetUnfolder]: 54/110 cut-off events. [2023-08-30 13:02:59,295 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-08-30 13:02:59,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 110 events. 54/110 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 338 event pairs, 25 based on Foata normal form. 8/115 useless extension candidates. Maximal degree in co-relation 261. Up to 54 conditions per place. [2023-08-30 13:02:59,296 INFO L137 encePairwiseOnDemand]: 194/199 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-08-30 13:02:59,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 102 flow [2023-08-30 13:02:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:02:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:02:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 382 transitions. [2023-08-30 13:02:59,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4798994974874372 [2023-08-30 13:02:59,298 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 382 transitions. [2023-08-30 13:02:59,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 382 transitions. [2023-08-30 13:02:59,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:59,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 382 transitions. [2023-08-30 13:02:59,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 13:02:59,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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 13:02:59,302 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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 13:02:59,302 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 52 flow. Second operand 4 states and 382 transitions. [2023-08-30 13:02:59,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 102 flow [2023-08-30 13:02:59,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:02:59,303 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-08-30 13:02:59,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-08-30 13:02:59,304 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2023-08-30 13:02:59,304 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-08-30 13:02:59,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 13:02:59,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-08-30 13:02:59,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-08-30 13:02:59,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-30 13:02:59,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-30 13:02:59,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-08-30 13:02:59,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-30 13:02:59,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-30 13:02:59,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-30 13:02:59,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-30 13:02:59,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-30 13:02:59,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:02:59,310 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-30 13:02:59,314 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:02:59,314 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:02:59,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:02:59 BasicIcfg [2023-08-30 13:02:59,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:02:59,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:02:59,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:02:59,318 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:02:59,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:02:51" (3/4) ... [2023-08-30 13:02:59,321 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:02:59,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:02:59,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:02:59,329 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-08-30 13:02:59,330 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-30 13:02:59,330 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 13:02:59,330 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:02:59,366 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:02:59,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:02:59,367 INFO L158 Benchmark]: Toolchain (without parser) took 9655.31ms. Allocated memory was 73.4MB in the beginning and 132.1MB in the end (delta: 58.7MB). Free memory was 50.0MB in the beginning and 51.7MB in the end (delta: -1.8MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2023-08-30 13:02:59,367 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:02:59,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.79ms. Allocated memory is still 73.4MB. Free memory was 49.8MB in the beginning and 43.3MB in the end (delta: 6.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-08-30 13:02:59,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.67ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 40.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:02:59,368 INFO L158 Benchmark]: Boogie Preprocessor took 58.15ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 39.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:02:59,368 INFO L158 Benchmark]: RCFGBuilder took 919.17ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 38.8MB in the beginning and 34.2MB in the end (delta: 4.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-08-30 13:02:59,368 INFO L158 Benchmark]: TraceAbstraction took 8069.59ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 63.8MB in the beginning and 54.9MB in the end (delta: 9.0MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2023-08-30 13:02:59,369 INFO L158 Benchmark]: Witness Printer took 48.05ms. Allocated memory is still 132.1MB. Free memory was 54.9MB in the beginning and 51.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:02:59,370 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 34.7MB in the beginning and 34.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.79ms. Allocated memory is still 73.4MB. Free memory was 49.8MB in the beginning and 43.3MB in the end (delta: 6.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.67ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 40.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.15ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 39.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 919.17ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 38.8MB in the beginning and 34.2MB in the end (delta: 4.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8069.59ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 63.8MB in the beginning and 54.9MB in the end (delta: 9.0MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Witness Printer took 48.05ms. Allocated memory is still 132.1MB. Free memory was 54.9MB in the beginning and 51.7MB 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: 6.7s, 109 PlacesBefore, 25 PlacesAfterwards, 104 TransitionsBefore, 18 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, 3505 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1620, independent: 1440, independent conditional: 0, independent unconditional: 1440, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 641, independent: 606, independent conditional: 0, independent unconditional: 606, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1620, independent: 834, independent conditional: 0, independent unconditional: 834, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 641, unknown conditional: 0, unknown unconditional: 641] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 126 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 3 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-08-30 13:02:59,391 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