./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:12:41,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:12:41,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:12:41,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:12:41,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:12:41,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:12:41,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:12:41,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:12:41,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:12:41,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:12:41,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:12:41,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:12:41,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:12:41,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:12:41,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:12:41,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:12:41,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:12:41,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:12:41,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:12:41,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:12:41,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:12:41,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:12:41,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:12:41,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:12:41,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:12:41,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:12:41,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:12:41,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:12:41,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:12:41,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:12:41,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:12:41,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:12:41,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:12:41,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:12:41,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:12:41,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:12:41,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:12:41,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:12:41,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:12:41,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:12:41,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:12:41,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:12:41,792 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:12:41,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:12:41,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:12:41,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:12:41,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:12:41,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:12:41,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:12:41,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:12:41,795 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:12:41,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:12:41,797 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:12:41,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:12:41,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:12:41,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:12:41,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:12:41,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:12:41,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:12:41,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:12:41,798 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:12:41,798 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:12:41,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:12:41,799 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:12:41,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:12:41,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:12:41,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:12:41,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:12:41,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:12:41,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:12:41,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:12:41,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:12:41,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:12:41,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:12:41,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:12:41,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:12:41,802 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:12:41,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:12:41,802 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:12:41,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:12:42,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:12:42,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:12:42,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:12:42,154 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:12:42,154 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:12:42,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-09-01 06:12:43,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:12:43,777 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:12:43,779 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-09-01 06:12:43,792 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7206fc04d/8f267c33235e475c8bbdaeab9386ec5f/FLAG677bf8047 [2023-09-01 06:12:43,811 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7206fc04d/8f267c33235e475c8bbdaeab9386ec5f [2023-09-01 06:12:43,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:12:43,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:12:43,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:12:43,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:12:43,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:12:43,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:12:43" (1/1) ... [2023-09-01 06:12:43,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da4395d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:43, skipping insertion in model container [2023-09-01 06:12:43,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:12:43" (1/1) ... [2023-09-01 06:12:43,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:12:43,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:12:44,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:12:44,272 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:12:44,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:12:44,386 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:12:44,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44 WrapperNode [2023-09-01 06:12:44,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:12:44,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:12:44,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:12:44,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:12:44,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,461 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-09-01 06:12:44,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:12:44,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:12:44,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:12:44,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:12:44,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:12:44,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:12:44,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:12:44,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:12:44,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (1/1) ... [2023-09-01 06:12:44,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:12:44,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:44,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 06:12:44,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 06:12:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:12:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:12:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:12:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:12:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:12:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:12:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:12:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:12:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:12:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:12:44,593 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:12:44,695 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:12:44,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:12:44,919 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:12:44,925 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:12:44,927 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:12:44,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:12:44 BoogieIcfgContainer [2023-09-01 06:12:44,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:12:44,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:12:44,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:12:44,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:12:44,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:12:43" (1/3) ... [2023-09-01 06:12:44,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f04569b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:12:44, skipping insertion in model container [2023-09-01 06:12:44,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:44" (2/3) ... [2023-09-01 06:12:44,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f04569b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:12:44, skipping insertion in model container [2023-09-01 06:12:44,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:12:44" (3/3) ... [2023-09-01 06:12:44,938 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2023-09-01 06:12:44,945 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:12:44,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:12:44,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 06:12:44,954 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:12:45,003 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:12:45,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 161 flow [2023-09-01 06:12:45,104 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2023-09-01 06:12:45,105 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:45,108 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. [2023-09-01 06:12:45,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 161 flow [2023-09-01 06:12:45,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 47 transitions, 94 flow [2023-09-01 06:12:45,118 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:12:45,138 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 47 transitions, 94 flow [2023-09-01 06:12:45,141 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 47 transitions, 94 flow [2023-09-01 06:12:45,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 94 flow [2023-09-01 06:12:45,151 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2023-09-01 06:12:45,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:45,152 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. [2023-09-01 06:12:45,152 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-09-01 06:12:47,585 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-09-01 06:12:47,585 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-09-01 06:12:47,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:12:47,604 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;@570a80e2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:12:47,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-09-01 06:12:47,605 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 06:12:47,605 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:47,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:47,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 06:12:47,607 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)] === [2023-09-01 06:12:47,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash 249, now seen corresponding path program 1 times [2023-09-01 06:12:47,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:47,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566080433] [2023-09-01 06:12:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:47,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:47,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:47,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:47,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566080433] [2023-09-01 06:12:47,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566080433] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:47,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:47,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 06:12:47,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334320447] [2023-09-01 06:12:47,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:47,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 06:12:47,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:47,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 06:12:47,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 06:12:47,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2023-09-01 06:12:47,742 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) [2023-09-01 06:12:47,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:47,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2023-09-01 06:12:47,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:47,751 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-09-01 06:12:47,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:47,752 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. [2023-09-01 06:12:47,752 INFO L137 encePairwiseOnDemand]: 127/130 looper letters, 1 selfloop transitions, 0 changer transitions 0/1 dead transitions. [2023-09-01 06:12:47,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3 places, 1 transitions, 4 flow [2023-09-01 06:12:47,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 06:12:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 06:12:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 158 transitions. [2023-09-01 06:12:47,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2023-09-01 06:12:47,769 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 158 transitions. [2023-09-01 06:12:47,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 158 transitions. [2023-09-01 06:12:47,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:47,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 158 transitions. [2023-09-01 06:12:47,779 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) [2023-09-01 06:12:47,783 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) [2023-09-01 06:12:47,784 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) [2023-09-01 06:12:47,786 INFO L175 Difference]: Start difference. First operand has 5 places, 4 transitions, 8 flow. Second operand 2 states and 158 transitions. [2023-09-01 06:12:47,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 3 places, 1 transitions, 4 flow [2023-09-01 06:12:47,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 3 places, 1 transitions, 4 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 06:12:47,789 INFO L231 Difference]: Finished difference. Result has 3 places, 1 transitions, 2 flow [2023-09-01 06:12:47,790 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} [2023-09-01 06:12:47,794 INFO L281 CegarLoopForPetriNet]: 5 programPoint places, -2 predicate places. [2023-09-01 06:12:47,794 INFO L495 AbstractCegarLoop]: Abstraction has has 3 places, 1 transitions, 2 flow [2023-09-01 06:12:47,795 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) [2023-09-01 06:12:47,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:47,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 06:12:47,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:12:47,796 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)] === [2023-09-01 06:12:47,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash 251, now seen corresponding path program 1 times [2023-09-01 06:12:47,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:47,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865961783] [2023-09-01 06:12:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 06:12:47,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 06:12:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 06:12:47,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 06:12:47,911 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 06:12:47,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-09-01 06:12:47,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-09-01 06:12:47,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-09-01 06:12:47,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-09-01 06:12:47,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-09-01 06:12:47,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:12:47,925 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-09-01 06:12:47,930 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:12:47,932 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:12:47,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:12:47 BasicIcfg [2023-09-01 06:12:47,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:12:47,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:12:47,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:12:47,951 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:12:47,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:12:44" (3/4) ... [2023-09-01 06:12:47,952 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 06:12:47,979 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:12:47,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:12:47,980 INFO L158 Benchmark]: Toolchain (without parser) took 4165.58ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 40.5MB in the beginning and 68.3MB in the end (delta: -27.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-09-01 06:12:47,980 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory is still 28.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:47,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.18ms. Allocated memory is still 65.0MB. Free memory was 40.3MB in the beginning and 28.3MB in the end (delta: 12.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-09-01 06:12:47,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.39ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 28.3MB in the beginning and 56.9MB in the end (delta: -28.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-09-01 06:12:47,981 INFO L158 Benchmark]: Boogie Preprocessor took 47.34ms. Allocated memory is still 79.7MB. Free memory was 56.9MB in the beginning and 55.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:12:47,982 INFO L158 Benchmark]: RCFGBuilder took 419.28ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 41.9MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 06:12:47,982 INFO L158 Benchmark]: TraceAbstraction took 3017.69ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 69.5MB in the end (delta: -28.4MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-09-01 06:12:47,982 INFO L158 Benchmark]: Witness Printer took 28.69ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 68.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:47,984 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 50.3MB. Free memory is still 28.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.18ms. Allocated memory is still 65.0MB. Free memory was 40.3MB in the beginning and 28.3MB in the end (delta: 12.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.39ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 28.3MB in the beginning and 56.9MB in the end (delta: -28.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.34ms. Allocated memory is still 79.7MB. Free memory was 56.9MB in the beginning and 55.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.28ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 41.9MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3017.69ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 69.5MB in the end (delta: -28.4MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 28.69ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 68.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 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: 2.9s, 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! [2023-09-01 06:12:48,017 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)