./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/sum_array-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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 ../sv-benchmarks/c/loops/sum_array-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0ce6e358e97991ebbe821b374467d4ac3ee0da45122333d4b5212eb8135ac7d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 15:09:22,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 15:09:22,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 15:09:22,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 15:09:22,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 15:09:22,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 15:09:22,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 15:09:22,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 15:09:22,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 15:09:22,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 15:09:22,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 15:09:22,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 15:09:22,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 15:09:22,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 15:09:22,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 15:09:22,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 15:09:22,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 15:09:22,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 15:09:22,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 15:09:22,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 15:09:22,183 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 15:09:22,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 15:09:22,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 15:09:22,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 15:09:22,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 15:09:22,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 15:09:22,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 15:09:22,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 15:09:22,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 15:09:22,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 15:09:22,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 15:09:22,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 15:09:22,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 15:09:22,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 15:09:22,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 15:09:22,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 15:09:22,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 15:09:22,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 15:09:22,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 15:09:22,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 15:09:22,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 15:09:22,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 15:09:22,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 15:09:22,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 15:09:22,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 15:09:22,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 15:09:22,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 15:09:22,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 15:09:22,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 15:09:22,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 15:09:22,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 15:09:22,247 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 15:09:22,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 15:09:22,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 15:09:22,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 15:09:22,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 15:09:22,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 15:09:22,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 15:09:22,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 15:09:22,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 15:09:22,249 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 15:09:22,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 15:09:22,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 15:09:22,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 15:09:22,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 15:09:22,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 15:09:22,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 15:09:22,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:09:22,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 15:09:22,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 15:09:22,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 15:09:22,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 15:09:22,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 15:09:22,252 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 15:09:22,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 15:09:22,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 15:09:22,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0ce6e358e97991ebbe821b374467d4ac3ee0da45122333d4b5212eb8135ac7d [2022-07-22 15:09:22,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 15:09:22,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 15:09:22,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 15:09:22,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 15:09:22,487 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 15:09:22,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-1.c [2022-07-22 15:09:22,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebee95335/05618bf8d92945b4a878d6d8ba79ca88/FLAG1bc1c7202 [2022-07-22 15:09:22,964 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 15:09:22,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-1.c [2022-07-22 15:09:22,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebee95335/05618bf8d92945b4a878d6d8ba79ca88/FLAG1bc1c7202 [2022-07-22 15:09:23,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebee95335/05618bf8d92945b4a878d6d8ba79ca88 [2022-07-22 15:09:23,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 15:09:23,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 15:09:23,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 15:09:23,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 15:09:23,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 15:09:23,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f721bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23, skipping insertion in model container [2022-07-22 15:09:23,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 15:09:23,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 15:09:23,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-1.c[363,376] [2022-07-22 15:09:23,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:09:23,649 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 15:09:23,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-1.c[363,376] [2022-07-22 15:09:23,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:09:23,693 INFO L208 MainTranslator]: Completed translation [2022-07-22 15:09:23,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23 WrapperNode [2022-07-22 15:09:23,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 15:09:23,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 15:09:23,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 15:09:23,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 15:09:23,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,748 INFO L137 Inliner]: procedures = 15, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-07-22 15:09:23,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 15:09:23,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 15:09:23,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 15:09:23,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 15:09:23,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 15:09:23,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 15:09:23,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 15:09:23,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 15:09:23,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (1/1) ... [2022-07-22 15:09:23,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:09:23,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:09:23,815 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) [2022-07-22 15:09:23,818 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 [2022-07-22 15:09:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 15:09:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 15:09:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 15:09:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 15:09:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 15:09:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 15:09:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 15:09:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 15:09:23,906 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 15:09:23,907 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 15:09:24,044 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 15:09:24,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 15:09:24,050 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 15:09:24,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:09:24 BoogieIcfgContainer [2022-07-22 15:09:24,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 15:09:24,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 15:09:24,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 15:09:24,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 15:09:24,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:09:23" (1/3) ... [2022-07-22 15:09:24,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd0e77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:09:24, skipping insertion in model container [2022-07-22 15:09:24,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:09:23" (2/3) ... [2022-07-22 15:09:24,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd0e77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:09:24, skipping insertion in model container [2022-07-22 15:09:24,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:09:24" (3/3) ... [2022-07-22 15:09:24,061 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2022-07-22 15:09:24,074 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 15:09:24,075 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 15:09:24,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 15:09:24,125 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7285827b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f176662 [2022-07-22 15:09:24,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 15:09:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-07-22 15:09:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 15:09:24,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:09:24,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:09:24,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:09:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:09:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash -779788197, now seen corresponding path program 1 times [2022-07-22 15:09:24,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:09:24,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215248333] [2022-07-22 15:09:24,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:09:24,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:09:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:09:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:09:24,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:09:24,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215248333] [2022-07-22 15:09:24,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215248333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:09:24,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:09:24,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:09:24,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563225124] [2022-07-22 15:09:24,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:09:24,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:09:24,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:09:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:09:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:09:24,433 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-22 15:09:24,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:09:24,532 INFO L93 Difference]: Finished difference Result 60 states and 88 transitions. [2022-07-22 15:09:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 15:09:24,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2022-07-22 15:09:24,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:09:24,542 INFO L225 Difference]: With dead ends: 60 [2022-07-22 15:09:24,543 INFO L226 Difference]: Without dead ends: 29 [2022-07-22 15:09:24,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:09:24,549 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:09:24,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 31 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:09:24,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-22 15:09:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2022-07-22 15:09:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2022-07-22 15:09:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-07-22 15:09:24,581 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2022-07-22 15:09:24,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:09:24,581 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-07-22 15:09:24,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-22 15:09:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-07-22 15:09:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 15:09:24,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:09:24,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:09:24,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 15:09:24,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:09:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:09:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1602849365, now seen corresponding path program 1 times [2022-07-22 15:09:24,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:09:24,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919714517] [2022-07-22 15:09:24,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:09:24,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:09:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 15:09:24,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 15:09:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 15:09:24,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 15:09:24,861 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 15:09:24,863 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 15:09:24,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 15:09:24,869 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 15:09:24,876 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 15:09:24,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:09:24 BoogieIcfgContainer [2022-07-22 15:09:24,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 15:09:24,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 15:09:24,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 15:09:24,933 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 15:09:24,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:09:24" (3/4) ... [2022-07-22 15:09:24,935 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 15:09:25,000 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 15:09:25,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 15:09:25,004 INFO L158 Benchmark]: Toolchain (without parser) took 1609.56ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.5MB in the beginning and 90.4MB in the end (delta: -13.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-07-22 15:09:25,004 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 109.1MB. Free memory was 63.8MB in the beginning and 63.7MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:09:25,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.65ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.4MB in the beginning and 106.8MB in the end (delta: -30.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 15:09:25,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.45ms. Allocated memory is still 132.1MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:09:25,005 INFO L158 Benchmark]: Boogie Preprocessor took 29.44ms. Allocated memory is still 132.1MB. Free memory was 104.7MB in the beginning and 103.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:09:25,006 INFO L158 Benchmark]: RCFGBuilder took 272.36ms. Allocated memory is still 132.1MB. Free memory was 103.6MB in the beginning and 92.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 15:09:25,006 INFO L158 Benchmark]: TraceAbstraction took 875.76ms. Allocated memory is still 132.1MB. Free memory was 91.6MB in the beginning and 92.5MB in the end (delta: -895.5kB). Peak memory consumption was 298.0kB. Max. memory is 16.1GB. [2022-07-22 15:09:25,008 INFO L158 Benchmark]: Witness Printer took 69.62ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:09:25,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 109.1MB. Free memory was 63.8MB in the beginning and 63.7MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.65ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.4MB in the beginning and 106.8MB in the end (delta: -30.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.45ms. Allocated memory is still 132.1MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.44ms. Allocated memory is still 132.1MB. Free memory was 104.7MB in the beginning and 103.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.36ms. Allocated memory is still 132.1MB. Free memory was 103.6MB in the beginning and 92.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 875.76ms. Allocated memory is still 132.1MB. Free memory was 91.6MB in the beginning and 92.5MB in the end (delta: -895.5kB). Peak memory consumption was 298.0kB. Max. memory is 16.1GB. * Witness Printer took 69.62ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] unsigned int M = __VERIFIER_nondet_uint(); [L17] int A[M], B[M], C[M]; [L18] unsigned int i; [L20] i=0 VAL [A={6:0}, B={5:0}, C={7:0}, i=0, M=1] [L20] COND TRUE i