./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:49:04,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:49:04,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:49:04,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:49:04,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:49:04,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:49:04,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:49:04,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:49:04,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:49:04,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:49:04,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:49:04,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:49:04,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:49:04,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:49:04,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:49:04,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:49:04,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:49:04,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:49:04,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:49:04,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:49:04,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:49:04,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:49:04,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:49:04,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:49:04,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:49:04,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:49:04,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:49:04,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:49:04,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:49:04,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:49:04,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:49:04,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:49:04,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:49:04,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:49:04,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:49:04,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:49:04,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:49:04,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:49:04,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:49:04,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:49:04,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:49:04,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:49:04,907 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:49:04,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:49:04,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:49:04,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:49:04,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:49:04,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:49:04,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:49:04,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:49:04,912 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:49:04,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:49:04,912 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:49:04,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:49:04,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:49:04,914 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:49:04,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:49:04,914 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:49:04,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:49:04,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:49:04,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:49:04,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:49:04,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:49:04,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:49:04,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:49:04,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:49:04,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:49:04,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:49:04,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:49:04,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:49:04,916 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:49:04,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:49:04,916 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:49:04,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:49:05,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:49:05,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:49:05,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:49:05,160 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:49:05,160 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:49:05,161 INFO L432 ainManager$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 13:49:06,126 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:49:06,289 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:49:06,290 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-08-30 13:49:06,302 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7241608e3/dc87f33208e34c9498075bf94a466fe3/FLAG636eda870 [2023-08-30 13:49:06,312 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7241608e3/dc87f33208e34c9498075bf94a466fe3 [2023-08-30 13:49:06,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:49:06,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:49:06,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:49:06,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:49:06,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:49:06,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6db5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06, skipping insertion in model container [2023-08-30 13:49:06,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:49:06,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:49:06,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:49:06,670 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:49:06,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:49:06,762 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:49:06,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06 WrapperNode [2023-08-30 13:49:06,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:49:06,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:49:06,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:49:06,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:49:06,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,817 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-30 13:49:06,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:49:06,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:49:06,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:49:06,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:49:06,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,849 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:49:06,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:49:06,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:49:06,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:49:06,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (1/1) ... [2023-08-30 13:49:06,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:49:06,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:49:06,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:49:06,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:49:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:49:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:49:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:49:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:49:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:49:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 13:49:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 13:49:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:49:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:49:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:49:06,910 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:49:07,021 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:49:07,022 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:49:07,188 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:49:07,193 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:49:07,193 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:49:07,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:49:07 BoogieIcfgContainer [2023-08-30 13:49:07,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:49:07,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:49:07,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:49:07,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:49:07,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:49:06" (1/3) ... [2023-08-30 13:49:07,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611c6528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:49:07, skipping insertion in model container [2023-08-30 13:49:07,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:49:06" (2/3) ... [2023-08-30 13:49:07,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611c6528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:49:07, skipping insertion in model container [2023-08-30 13:49:07,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:49:07" (3/3) ... [2023-08-30 13:49:07,201 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2023-08-30 13:49:07,206 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:49:07,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:49:07,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 13:49:07,213 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:49:07,248 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:49:07,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 161 flow [2023-08-30 13:49:07,302 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2023-08-30 13:49:07,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:49:07,307 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 13:49:07,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 161 flow [2023-08-30 13:49:07,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 47 transitions, 94 flow [2023-08-30 13:49:07,311 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:49:07,316 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 47 transitions, 94 flow [2023-08-30 13:49:07,318 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 47 transitions, 94 flow [2023-08-30 13:49:07,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 94 flow [2023-08-30 13:49:07,330 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2023-08-30 13:49:07,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:49:07,333 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 13:49:07,333 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-08-30 13:49:09,262 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-08-30 13:49:09,262 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-30 13:49:09,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:49:09,277 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;@b60a284, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:49:09,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 13:49:09,278 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 13:49:09,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:49:09,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:49:09,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 13:49:09,279 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 13:49:09,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:49:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash 249, now seen corresponding path program 1 times [2023-08-30 13:49:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:49:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883120439] [2023-08-30 13:49:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:49:09,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:49:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:49:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:49:09,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:49:09,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883120439] [2023-08-30 13:49:09,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883120439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:49:09,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:49:09,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 13:49:09,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135158939] [2023-08-30 13:49:09,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:49:09,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:49:09,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:49:09,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:49:09,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:49:09,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2023-08-30 13:49:09,434 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 13:49:09,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:49:09,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2023-08-30 13:49:09,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:49:09,450 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 13:49:09,451 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:49:09,451 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 13:49:09,452 INFO L137 encePairwiseOnDemand]: 127/130 looper letters, 1 selfloop transitions, 0 changer transitions 0/1 dead transitions. [2023-08-30 13:49:09,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3 places, 1 transitions, 4 flow [2023-08-30 13:49:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:49:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:49:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 158 transitions. [2023-08-30 13:49:09,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2023-08-30 13:49:09,462 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 158 transitions. [2023-08-30 13:49:09,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 158 transitions. [2023-08-30 13:49:09,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:49:09,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 158 transitions. [2023-08-30 13:49:09,469 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 13:49:09,472 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 13:49:09,473 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 13:49:09,474 INFO L175 Difference]: Start difference. First operand has 5 places, 4 transitions, 8 flow. Second operand 2 states and 158 transitions. [2023-08-30 13:49:09,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 3 places, 1 transitions, 4 flow [2023-08-30 13:49:09,475 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 13:49:09,476 INFO L231 Difference]: Finished difference. Result has 3 places, 1 transitions, 2 flow [2023-08-30 13:49:09,477 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 13:49:09,479 INFO L281 CegarLoopForPetriNet]: 5 programPoint places, -2 predicate places. [2023-08-30 13:49:09,479 INFO L495 AbstractCegarLoop]: Abstraction has has 3 places, 1 transitions, 2 flow [2023-08-30 13:49:09,480 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 13:49:09,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:49:09,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 13:49:09,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:49:09,480 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 13:49:09,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:49:09,482 INFO L85 PathProgramCache]: Analyzing trace with hash 251, now seen corresponding path program 1 times [2023-08-30 13:49:09,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:49:09,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934553535] [2023-08-30 13:49:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:49:09,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:49:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 13:49:09,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 13:49:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 13:49:09,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 13:49:09,561 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 13:49:09,562 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-08-30 13:49:09,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-08-30 13:49:09,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-08-30 13:49:09,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-08-30 13:49:09,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 13:49:09,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:49:09,564 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 13:49:09,567 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:49:09,567 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:49:09,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:49:09 BasicIcfg [2023-08-30 13:49:09,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:49:09,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:49:09,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:49:09,581 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:49:09,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:49:07" (3/4) ... [2023-08-30 13:49:09,583 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 13:49:09,602 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:49:09,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:49:09,602 INFO L158 Benchmark]: Toolchain (without parser) took 3287.53ms. Allocated memory was 67.1MB in the beginning and 109.1MB in the end (delta: 41.9MB). Free memory was 37.4MB in the beginning and 70.7MB in the end (delta: -33.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,603 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:49:09,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.06ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 37.2MB in the beginning and 53.6MB in the end (delta: -16.4MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.52ms. Allocated memory is still 90.2MB. Free memory was 53.6MB in the beginning and 51.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,604 INFO L158 Benchmark]: Boogie Preprocessor took 38.37ms. Allocated memory is still 90.2MB. Free memory was 51.4MB in the beginning and 49.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,604 INFO L158 Benchmark]: RCFGBuilder took 337.45ms. Allocated memory is still 90.2MB. Free memory was 49.5MB in the beginning and 64.1MB in the end (delta: -14.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,604 INFO L158 Benchmark]: TraceAbstraction took 2385.41ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 63.5MB in the beginning and 71.9MB in the end (delta: -8.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,605 INFO L158 Benchmark]: Witness Printer took 20.83ms. Allocated memory is still 109.1MB. Free memory was 71.9MB in the beginning and 70.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:49:09,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.06ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 37.2MB in the beginning and 53.6MB in the end (delta: -16.4MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.52ms. Allocated memory is still 90.2MB. Free memory was 53.6MB in the beginning and 51.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.37ms. Allocated memory is still 90.2MB. Free memory was 51.4MB in the beginning and 49.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 337.45ms. Allocated memory is still 90.2MB. Free memory was 49.5MB in the beginning and 64.1MB in the end (delta: -14.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2385.41ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 63.5MB in the beginning and 71.9MB in the end (delta: -8.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 20.83ms. Allocated memory is still 109.1MB. Free memory was 71.9MB in the beginning and 70.7MB in the end (delta: 1.3MB). 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: 1.9s, 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: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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 13:49:09,623 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)