./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/sorting_selectionsort_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/array-examples/sorting_selectionsort_ground-1.i -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 5aa72773233f17156d62ec9c7729aefdd69e77cc68e9bdd6e006eaf36895d27a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:28:46,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:28:46,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:28:47,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:28:47,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:28:47,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:28:47,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:28:47,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:28:47,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:28:47,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:28:47,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:28:47,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:28:47,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:28:47,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:28:47,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:28:47,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:28:47,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:28:47,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:28:47,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:28:47,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:28:47,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:28:47,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:28:47,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:28:47,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:28:47,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:28:47,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:28:47,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:28:47,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:28:47,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:28:47,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:28:47,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:28:47,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:28:47,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:28:47,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:28:47,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:28:47,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:28:47,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:28:47,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:28:47,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:28:47,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:28:47,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:28:47,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:28:47,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:28:47,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:28:47,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:28:47,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:28:47,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:28:47,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:28:47,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:28:47,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:28:47,097 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:28:47,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:28:47,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:28:47,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:28:47,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:28:47,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:28:47,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:28:47,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:28:47,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:28:47,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:28:47,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:28:47,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:28:47,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:28:47,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:28:47,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:28:47,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:28:47,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:28:47,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:28:47,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:28:47,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:28:47,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa72773233f17156d62ec9c7729aefdd69e77cc68e9bdd6e006eaf36895d27a [2021-12-15 08:28:47,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:28:47,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:28:47,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:28:47,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:28:47,337 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:28:47,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_selectionsort_ground-1.i [2021-12-15 08:28:47,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f7570f6/bcaeaf01d2764f3cb7dd8037dacd46d0/FLAGf67f670e8 [2021-12-15 08:28:47,731 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:28:47,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_ground-1.i [2021-12-15 08:28:47,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f7570f6/bcaeaf01d2764f3cb7dd8037dacd46d0/FLAGf67f670e8 [2021-12-15 08:28:47,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f7570f6/bcaeaf01d2764f3cb7dd8037dacd46d0 [2021-12-15 08:28:47,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:28:47,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:28:47,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:28:47,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:28:47,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:28:47,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f9b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47, skipping insertion in model container [2021-12-15 08:28:47,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:28:47,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:28:47,877 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/array-examples/sorting_selectionsort_ground-1.i[823,836] [2021-12-15 08:28:47,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:28:47,894 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:28:47,902 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/array-examples/sorting_selectionsort_ground-1.i[823,836] [2021-12-15 08:28:47,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:28:47,919 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:28:47,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47 WrapperNode [2021-12-15 08:28:47,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:28:47,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:28:47,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:28:47,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:28:47,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,944 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2021-12-15 08:28:47,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:28:47,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:28:47,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:28:47,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:28:47,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:28:47,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:28:47,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:28:47,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:28:47,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (1/1) ... [2021-12-15 08:28:47,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:28:47,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:28:48,020 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) [2021-12-15 08:28:48,040 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 [2021-12-15 08:28:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:28:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:28:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:28:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 08:28:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:28:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:28:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 08:28:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 08:28:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 08:28:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:28:48,124 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:28:48,125 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:28:48,271 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:28:48,275 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:28:48,278 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-15 08:28:48,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:28:48 BoogieIcfgContainer [2021-12-15 08:28:48,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:28:48,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:28:48,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:28:48,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:28:48,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:28:47" (1/3) ... [2021-12-15 08:28:48,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595dea62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:28:48, skipping insertion in model container [2021-12-15 08:28:48,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:47" (2/3) ... [2021-12-15 08:28:48,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595dea62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:28:48, skipping insertion in model container [2021-12-15 08:28:48,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:28:48" (3/3) ... [2021-12-15 08:28:48,295 INFO L111 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_ground-1.i [2021-12-15 08:28:48,299 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:28:48,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:28:48,358 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:28:48,362 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 08:28:48,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:28:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 08:28:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 08:28:48,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:28:48,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:28:48,380 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:28:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:28:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1922481208, now seen corresponding path program 1 times [2021-12-15 08:28:48,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:28:48,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730585013] [2021-12-15 08:28:48,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:28:48,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:28:48,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:28:48,429 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 08:28:48,433 INFO L158 Benchmark]: Toolchain (without parser) took 670.88ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 40.6MB in the beginning and 69.5MB in the end (delta: -28.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:28:48,434 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.3MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:28:48,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.01ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 40.4MB in the beginning and 77.8MB in the end (delta: -37.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-12-15 08:28:48,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.23ms. Allocated memory is still 107.0MB. Free memory was 77.8MB in the beginning and 76.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:28:48,435 INFO L158 Benchmark]: Boogie Preprocessor took 19.08ms. Allocated memory is still 107.0MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:28:48,436 INFO L158 Benchmark]: RCFGBuilder took 315.06ms. Allocated memory is still 107.0MB. Free memory was 74.5MB in the beginning and 79.5MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:28:48,436 INFO L158 Benchmark]: TraceAbstraction took 142.05ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 69.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:28:48,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.3MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.01ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 40.4MB in the beginning and 77.8MB in the end (delta: -37.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.23ms. Allocated memory is still 107.0MB. Free memory was 77.8MB in the beginning and 76.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.08ms. Allocated memory is still 107.0MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.06ms. Allocated memory is still 107.0MB. Free memory was 74.5MB in the beginning and 79.5MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 142.05ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 69.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 08:28:48,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/array-examples/sorting_selectionsort_ground-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 5aa72773233f17156d62ec9c7729aefdd69e77cc68e9bdd6e006eaf36895d27a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:28:50,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:28:50,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:28:50,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:28:50,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:28:50,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:28:50,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:28:50,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:28:50,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:28:50,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:28:50,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:28:50,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:28:50,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:28:50,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:28:50,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:28:50,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:28:50,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:28:50,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:28:50,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:28:50,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:28:50,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:28:50,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:28:50,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:28:50,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:28:50,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:28:50,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:28:50,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:28:50,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:28:50,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:28:50,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:28:50,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:28:50,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:28:50,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:28:50,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:28:50,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:28:50,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:28:50,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:28:50,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:28:50,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:28:50,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:28:50,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:28:50,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 08:28:50,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:28:50,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:28:50,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:28:50,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:28:50,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:28:50,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:28:50,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:28:50,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:28:50,096 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:28:50,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:28:50,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 08:28:50,098 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 08:28:50,098 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 08:28:50,098 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:28:50,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:28:50,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:28:50,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:28:50,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:28:50,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:28:50,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:28:50,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:28:50,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:28:50,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:28:50,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:28:50,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 08:28:50,101 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa72773233f17156d62ec9c7729aefdd69e77cc68e9bdd6e006eaf36895d27a [2021-12-15 08:28:50,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:28:50,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:28:50,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:28:50,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:28:50,361 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:28:50,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_selectionsort_ground-1.i [2021-12-15 08:28:50,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73d4ca42d/85e656ac26914c20986db402c729bbc0/FLAGef8c077fa [2021-12-15 08:28:50,750 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:28:50,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_ground-1.i [2021-12-15 08:28:50,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73d4ca42d/85e656ac26914c20986db402c729bbc0/FLAGef8c077fa [2021-12-15 08:28:50,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73d4ca42d/85e656ac26914c20986db402c729bbc0 [2021-12-15 08:28:50,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:28:50,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:28:50,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:28:50,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:28:50,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:28:50,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:28:50" (1/1) ... [2021-12-15 08:28:50,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a78018c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:50, skipping insertion in model container [2021-12-15 08:28:50,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:28:50" (1/1) ... [2021-12-15 08:28:50,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:28:50,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:28:50,895 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/array-examples/sorting_selectionsort_ground-1.i[823,836] [2021-12-15 08:28:50,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:28:50,950 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:28:50,990 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/array-examples/sorting_selectionsort_ground-1.i[823,836] [2021-12-15 08:28:51,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:28:51,026 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:28:51,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51 WrapperNode [2021-12-15 08:28:51,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:28:51,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:28:51,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:28:51,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:28:51,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,069 INFO L137 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 113 [2021-12-15 08:28:51,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:28:51,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:28:51,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:28:51,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:28:51,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:28:51,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:28:51,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:28:51,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:28:51,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (1/1) ... [2021-12-15 08:28:51,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:28:51,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:28:51,169 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) [2021-12-15 08:28:51,187 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 [2021-12-15 08:28:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:28:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 08:28:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:28:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 08:28:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:28:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:28:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 08:28:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 08:28:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:28:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 08:28:51,271 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:28:51,272 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:28:51,470 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:28:51,487 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:28:51,488 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-15 08:28:51,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:28:51 BoogieIcfgContainer [2021-12-15 08:28:51,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:28:51,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:28:51,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:28:51,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:28:51,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:28:50" (1/3) ... [2021-12-15 08:28:51,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55287d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:28:51, skipping insertion in model container [2021-12-15 08:28:51,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:28:51" (2/3) ... [2021-12-15 08:28:51,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55287d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:28:51, skipping insertion in model container [2021-12-15 08:28:51,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:28:51" (3/3) ... [2021-12-15 08:28:51,495 INFO L111 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_ground-1.i [2021-12-15 08:28:51,499 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:28:51,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:28:51,539 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:28:51,546 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 08:28:51,547 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:28:51,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 08:28:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 08:28:51,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:28:51,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:28:51,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:28:51,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:28:51,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1922481208, now seen corresponding path program 1 times [2021-12-15 08:28:51,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 08:28:51,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949902387] [2021-12-15 08:28:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:28:51,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 08:28:51,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 08:28:51,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 08:28:51,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 08:28:51,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 08:28:51,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 08:28:51,824 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 08:28:51,826 INFO L158 Benchmark]: Toolchain (without parser) took 1060.41ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 34.3MB in the beginning and 59.5MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:28:51,827 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:28:51,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.33ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 34.0MB in the beginning and 64.5MB in the end (delta: -30.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-12-15 08:28:51,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.61ms. Allocated memory is still 81.8MB. Free memory was 64.5MB in the beginning and 62.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:28:51,828 INFO L158 Benchmark]: Boogie Preprocessor took 42.19ms. Allocated memory is still 81.8MB. Free memory was 62.6MB in the beginning and 61.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:28:51,828 INFO L158 Benchmark]: RCFGBuilder took 376.87ms. Allocated memory is still 81.8MB. Free memory was 61.2MB in the beginning and 49.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 08:28:51,828 INFO L158 Benchmark]: TraceAbstraction took 334.86ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 59.5MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:28:51,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.33ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 34.0MB in the beginning and 64.5MB in the end (delta: -30.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.61ms. Allocated memory is still 81.8MB. Free memory was 64.5MB in the beginning and 62.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.19ms. Allocated memory is still 81.8MB. Free memory was 62.6MB in the beginning and 61.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.87ms. Allocated memory is still 81.8MB. Free memory was 61.2MB in the beginning and 49.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 334.86ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 59.5MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 08:28:51,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable