./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.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/06-symbeq_11a-equ_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 --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 09:36:37,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:36:37,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:36:37,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:36:37,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:36:37,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:36:37,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:36:37,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:36:37,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:36:37,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:36:37,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:36:37,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:36:37,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:36:37,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:36:37,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:36:37,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:36:37,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:36:37,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:36:37,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:36:37,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:36:37,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:36:37,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:36:37,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:36:37,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:36:37,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:36:37,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:36:37,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:36:37,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:36:37,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:36:37,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:36:37,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:36:37,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:36:37,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:36:37,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:36:37,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:36:37,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:36:37,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:36:37,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:36:37,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:36:37,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:36:37,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:36:37,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:36:37,591 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:36:37,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:36:37,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:36:37,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:36:37,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:36:37,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:36:37,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:36:37,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:36:37,595 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:36:37,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:36:37,596 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:36:37,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:36:37,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:36:37,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:36:37,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:36:37,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:36:37,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:36:37,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:36:37,597 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:36:37,597 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:36:37,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:36:37,598 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:36:37,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:36:37,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:36:37,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:36:37,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:36:37,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:36:37,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:36:37,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:36:37,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:36:37,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:36:37,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:36:37,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:36:37,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:36:37,601 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:36:37,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:36:37,601 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:36:37,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:36:37,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:36:37,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:36:37,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:36:37,939 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:36:37,939 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:36:37,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-08-30 09:36:39,012 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:36:39,264 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:36:39,268 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-08-30 09:36:39,291 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e04971cc/b28e943ea7614bc982857762054a2ed1/FLAG18b655c3e [2023-08-30 09:36:39,311 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e04971cc/b28e943ea7614bc982857762054a2ed1 [2023-08-30 09:36:39,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:36:39,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:36:39,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:36:39,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:36:39,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:36:39,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a91d54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39, skipping insertion in model container [2023-08-30 09:36:39,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:36:39,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:36:39,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:36:39,745 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:36:39,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:36:39,908 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:36:39,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39 WrapperNode [2023-08-30 09:36:39,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:36:39,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:36:39,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:36:39,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:36:39,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,973 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-30 09:36:39,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:36:39,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:36:39,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:36:39,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:36:39,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:39,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:40,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:40,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:40,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:40,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:40,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:36:40,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:36:40,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:36:40,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:36:40,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (1/1) ... [2023-08-30 09:36:40,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:36:40,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:40,053 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 09:36:40,077 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 09:36:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:36:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:36:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:36:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:36:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:36:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:36:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:36:40,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:36:40,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:36:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:36:40,093 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 09:36:40,257 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:36:40,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:36:40,396 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:36:40,403 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:36:40,403 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 09:36:40,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:40 BoogieIcfgContainer [2023-08-30 09:36:40,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:36:40,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:36:40,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:36:40,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:36:40,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:36:39" (1/3) ... [2023-08-30 09:36:40,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4c541d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:36:40, skipping insertion in model container [2023-08-30 09:36:40,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:39" (2/3) ... [2023-08-30 09:36:40,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4c541d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:36:40, skipping insertion in model container [2023-08-30 09:36:40,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:40" (3/3) ... [2023-08-30 09:36:40,412 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2023-08-30 09:36:40,419 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:36:40,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:36:40,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 09:36:40,428 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:36:40,495 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:36:40,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 161 flow [2023-08-30 09:36:40,595 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2023-08-30 09:36:40,595 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:40,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 1/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-08-30 09:36:40,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 161 flow [2023-08-30 09:36:40,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 47 transitions, 94 flow [2023-08-30 09:36:40,609 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:36:40,630 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 47 transitions, 94 flow [2023-08-30 09:36:40,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 47 transitions, 94 flow [2023-08-30 09:36:40,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 94 flow [2023-08-30 09:36:40,648 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2023-08-30 09:36:40,651 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:40,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 09:36:40,651 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-08-30 09:36:43,173 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-08-30 09:36:43,174 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-30 09:36:43,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:36:43,198 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1abe376c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:36:43,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 09:36:43,204 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 09:36:43,205 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:43,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:43,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 09:36:43,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 09:36:43,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash 249, now seen corresponding path program 1 times [2023-08-30 09:36:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:43,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840736529] [2023-08-30 09:36:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:43,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:43,330 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 09:36:43,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:43,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840736529] [2023-08-30 09:36:43,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840736529] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:43,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:43,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 09:36:43,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644062706] [2023-08-30 09:36:43,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:43,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:36:43,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:43,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:36:43,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:36:43,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2023-08-30 09:36:43,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5 places, 4 transitions, 8 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:43,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:43,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2023-08-30 09:36:43,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:43,386 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 09:36:43,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:43,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4 conditions, 1 events. 0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/1 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-30 09:36:43,388 INFO L137 encePairwiseOnDemand]: 127/130 looper letters, 1 selfloop transitions, 0 changer transitions 0/1 dead transitions. [2023-08-30 09:36:43,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3 places, 1 transitions, 4 flow [2023-08-30 09:36:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:36:43,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:36:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 158 transitions. [2023-08-30 09:36:43,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2023-08-30 09:36:43,399 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 158 transitions. [2023-08-30 09:36:43,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 158 transitions. [2023-08-30 09:36:43,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:43,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 158 transitions. [2023-08-30 09:36:43,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 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 09:36:43,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 09:36:43,408 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 09:36:43,410 INFO L175 Difference]: Start difference. First operand has 5 places, 4 transitions, 8 flow. Second operand 2 states and 158 transitions. [2023-08-30 09:36:43,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 3 places, 1 transitions, 4 flow [2023-08-30 09:36:43,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 3 places, 1 transitions, 4 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:36:43,412 INFO L231 Difference]: Finished difference. Result has 3 places, 1 transitions, 2 flow [2023-08-30 09:36:43,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=2, PETRI_DIFFERENCE_MINUEND_PLACES=2, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2, PETRI_PLACES=3, PETRI_TRANSITIONS=1} [2023-08-30 09:36:43,416 INFO L281 CegarLoopForPetriNet]: 5 programPoint places, -2 predicate places. [2023-08-30 09:36:43,417 INFO L495 AbstractCegarLoop]: Abstraction has has 3 places, 1 transitions, 2 flow [2023-08-30 09:36:43,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:43,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:43,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 09:36:43,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:36:43,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 09:36:43,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:43,418 INFO L85 PathProgramCache]: Analyzing trace with hash 251, now seen corresponding path program 1 times [2023-08-30 09:36:43,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596203149] [2023-08-30 09:36:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:36:43,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 09:36:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:36:43,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 09:36:43,487 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 09:36:43,489 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-08-30 09:36:43,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-08-30 09:36:43,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-08-30 09:36:43,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-08-30 09:36:43,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 09:36:43,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:36:43,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 09:36:43,504 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:36:43,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:36:43,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:36:43 BasicIcfg [2023-08-30 09:36:43,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:36:43,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:36:43,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:36:43,531 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:36:43,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:40" (3/4) ... [2023-08-30 09:36:43,533 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 09:36:43,589 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:36:43,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:36:43,590 INFO L158 Benchmark]: Toolchain (without parser) took 4275.09ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 58.0MB in the beginning and 73.6MB in the end (delta: -15.5MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2023-08-30 09:36:43,590 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:36:43,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.18ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 52.4MB in the end (delta: 5.4MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-08-30 09:36:43,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.19ms. Allocated memory is still 81.8MB. Free memory was 52.4MB in the beginning and 50.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:36:43,591 INFO L158 Benchmark]: Boogie Preprocessor took 43.17ms. Allocated memory is still 81.8MB. Free memory was 50.3MB in the beginning and 48.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:43,593 INFO L158 Benchmark]: RCFGBuilder took 386.93ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 34.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 09:36:43,595 INFO L158 Benchmark]: TraceAbstraction took 3123.87ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 34.0MB in the beginning and 31.3MB in the end (delta: 2.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-08-30 09:36:43,596 INFO L158 Benchmark]: Witness Printer took 58.32ms. Allocated memory is still 98.6MB. Free memory was 31.3MB in the beginning and 73.6MB in the end (delta: -42.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:43,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.18ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 52.4MB in the end (delta: 5.4MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.19ms. Allocated memory is still 81.8MB. Free memory was 52.4MB in the beginning and 50.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.17ms. Allocated memory is still 81.8MB. Free memory was 50.3MB in the beginning and 48.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.93ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 34.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3123.87ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 34.0MB in the beginning and 31.3MB in the end (delta: 2.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 58.32ms. Allocated memory is still 98.6MB. Free memory was 31.3MB in the beginning and 73.6MB in the end (delta: -42.2MB). 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: 2.5s, 48 PlacesBefore, 5 PlacesAfterwards, 47 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1010]: integer overflow possible integer overflow possible We found a FailurePath: [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] int x = __VERIFIER_nondet_int(); [L1004] pthread_t id; [L1005] struct s *s; [L1006] int *d; [L1007] pthread_mutex_t *m; [L1008] COND TRUE \read(x) [L1009] s = &A [L1010] x++ VAL [A={1:0}, B={2:0}, id={3:0}, s={1:0}, x++=2147483647, x=2147483647] - UnprovableResult [Line: 1010]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-30 09:36:43,623 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)