./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/heap-manipulation/bubble_sort_linux-2.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 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:56:40,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:56:40,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:56:40,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:56:40,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:56:40,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:56:40,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:56:40,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:56:40,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:56:40,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:56:40,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:56:40,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:56:40,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:56:40,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:56:40,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:56:40,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:56:40,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:56:40,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:56:40,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:56:40,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:56:40,422 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:56:40,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:56:40,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:56:40,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:56:40,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:56:40,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:56:40,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:56:40,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:56:40,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:56:40,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:56:40,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:56:40,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:56:40,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:56:40,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:56:40,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:56:40,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:56:40,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:56:40,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:56:40,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:56:40,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:56:40,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:56:40,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:56:40,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:56:40,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:56:40,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:56:40,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:56:40,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:56:40,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:56:40,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:56:40,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:56:40,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:56:40,463 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:56:40,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:56:40,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:56:40,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:56:40,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:56:40,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:56:40,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:56:40,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:56:40,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:56:40,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:56:40,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:40,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:56:40,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:56:40,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:56:40,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:56:40,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:56:40,466 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:56:40,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:56:40,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:56:40,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2022-07-13 14:56:40,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:56:40,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:56:40,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:56:40,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:56:40,647 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:56:40,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2022-07-13 14:56:40,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bd594550/8460c69b352b4c49a08c5cab71984a34/FLAG142606c7e [2022-07-13 14:56:41,118 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:56:41,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2022-07-13 14:56:41,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bd594550/8460c69b352b4c49a08c5cab71984a34/FLAG142606c7e [2022-07-13 14:56:41,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bd594550/8460c69b352b4c49a08c5cab71984a34 [2022-07-13 14:56:41,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:56:41,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:56:41,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:41,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:56:41,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:56:41,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:41" (1/1) ... [2022-07-13 14:56:41,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b674d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:41, skipping insertion in model container [2022-07-13 14:56:41,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:41" (1/1) ... [2022-07-13 14:56:41,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:56:41,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:56:41,890 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/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-07-13 14:56:41,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:41,940 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:56:41,974 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/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-07-13 14:56:41,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:42,026 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:56:42,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42 WrapperNode [2022-07-13 14:56:42,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:42,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:42,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:56:42,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:56:42,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,064 INFO L137 Inliner]: procedures = 232, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2022-07-13 14:56:42,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:42,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:56:42,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:56:42,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:56:42,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:56:42,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:56:42,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:56:42,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:56:42,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (1/1) ... [2022-07-13 14:56:42,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:56:42,133 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) [2022-07-13 14:56:42,141 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 [2022-07-13 14:56:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 14:56:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-07-13 14:56:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-07-13 14:56:42,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:56:42,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 14:56:42,183 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-07-13 14:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-07-13 14:56:42,186 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 14:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-13 14:56:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-13 14:56:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:56:42,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:56:42,269 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:56:42,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:56:42,594 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:56:42,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:56:42,600 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2022-07-13 14:56:42,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:42 BoogieIcfgContainer [2022-07-13 14:56:42,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:56:42,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:56:42,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:56:42,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:56:42,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:56:41" (1/3) ... [2022-07-13 14:56:42,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696002e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:42, skipping insertion in model container [2022-07-13 14:56:42,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:42" (2/3) ... [2022-07-13 14:56:42,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696002e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:42, skipping insertion in model container [2022-07-13 14:56:42,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:42" (3/3) ... [2022-07-13 14:56:42,619 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2022-07-13 14:56:42,630 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:56:42,630 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:56:42,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:56:42,692 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@327786e8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60d1e111 [2022-07-13 14:56:42,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:56:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 108 states have internal predecessors, (155), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-07-13 14:56:42,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 14:56:42,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:42,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:42,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:42,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:42,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1761516263, now seen corresponding path program 1 times [2022-07-13 14:56:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:42,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573079334] [2022-07-13 14:56:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:42,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:42,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573079334] [2022-07-13 14:56:42,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573079334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:42,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:42,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:56:42,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277027490] [2022-07-13 14:56:42,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:42,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:56:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:56:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:42,861 INFO L87 Difference]: Start difference. First operand has 118 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 108 states have internal predecessors, (155), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:56:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:42,889 INFO L93 Difference]: Finished difference Result 230 states and 397 transitions. [2022-07-13 14:56:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:56:42,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 14:56:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:42,895 INFO L225 Difference]: With dead ends: 230 [2022-07-13 14:56:42,896 INFO L226 Difference]: Without dead ends: 107 [2022-07-13 14:56:42,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:42,913 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:42,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:56:42,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-13 14:56:42,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-07-13 14:56:42,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 97 states have internal predecessors, (102), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 14:56:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2022-07-13 14:56:42,948 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 9 [2022-07-13 14:56:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:42,949 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2022-07-13 14:56:42,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:56:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2022-07-13 14:56:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-13 14:56:42,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:42,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:42,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:56:42,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:42,952 INFO L85 PathProgramCache]: Analyzing trace with hash 849043181, now seen corresponding path program 1 times [2022-07-13 14:56:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:42,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908691446] [2022-07-13 14:56:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:43,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:43,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:43,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908691446] [2022-07-13 14:56:43,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908691446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:43,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:43,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:56:43,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706298109] [2022-07-13 14:56:43,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:43,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:56:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:56:43,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:56:43,180 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:43,394 INFO L93 Difference]: Finished difference Result 109 states and 129 transitions. [2022-07-13 14:56:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:56:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-07-13 14:56:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:43,396 INFO L225 Difference]: With dead ends: 109 [2022-07-13 14:56:43,396 INFO L226 Difference]: Without dead ends: 106 [2022-07-13 14:56:43,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 14:56:43,397 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 238 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:43,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 196 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 14:56:43,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-13 14:56:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-07-13 14:56:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 96 states have internal predecessors, (101), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 14:56:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2022-07-13 14:56:43,422 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 21 [2022-07-13 14:56:43,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:43,423 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2022-07-13 14:56:43,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2022-07-13 14:56:43,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 14:56:43,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:43,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:43,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:56:43,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash 502050183, now seen corresponding path program 1 times [2022-07-13 14:56:43,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:43,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345555390] [2022-07-13 14:56:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:43,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:43,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:43,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:43,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345555390] [2022-07-13 14:56:43,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345555390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:43,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:43,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 14:56:43,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105377574] [2022-07-13 14:56:43,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:43,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 14:56:43,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:43,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 14:56:43,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 14:56:43,665 INFO L87 Difference]: Start difference. First operand 106 states and 126 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:44,300 INFO L93 Difference]: Finished difference Result 198 states and 235 transitions. [2022-07-13 14:56:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 14:56:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-07-13 14:56:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:44,303 INFO L225 Difference]: With dead ends: 198 [2022-07-13 14:56:44,303 INFO L226 Difference]: Without dead ends: 192 [2022-07-13 14:56:44,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-07-13 14:56:44,304 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 518 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:44,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 221 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 14:56:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-07-13 14:56:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2022-07-13 14:56:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 14:56:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions. [2022-07-13 14:56:44,320 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 24 [2022-07-13 14:56:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:44,321 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 209 transitions. [2022-07-13 14:56:44,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions. [2022-07-13 14:56:44,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-13 14:56:44,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:44,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:44,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 14:56:44,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:44,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:44,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1234303898, now seen corresponding path program 1 times [2022-07-13 14:56:44,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:44,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217076623] [2022-07-13 14:56:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:44,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:44,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:44,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217076623] [2022-07-13 14:56:44,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217076623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:44,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:44,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 14:56:44,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172191507] [2022-07-13 14:56:44,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:44,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 14:56:44,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 14:56:44,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 14:56:44,572 INFO L87 Difference]: Start difference. First operand 172 states and 209 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:45,123 INFO L93 Difference]: Finished difference Result 274 states and 329 transitions. [2022-07-13 14:56:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 14:56:45,123 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-07-13 14:56:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:45,125 INFO L225 Difference]: With dead ends: 274 [2022-07-13 14:56:45,125 INFO L226 Difference]: Without dead ends: 271 [2022-07-13 14:56:45,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-07-13 14:56:45,129 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 286 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:45,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 312 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 14:56:45,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-07-13 14:56:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 253. [2022-07-13 14:56:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.238532110091743) internal successors, (270), 233 states have internal predecessors, (270), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 14:56:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 309 transitions. [2022-07-13 14:56:45,157 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 309 transitions. Word has length 27 [2022-07-13 14:56:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:45,157 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 309 transitions. [2022-07-13 14:56:45,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 309 transitions. [2022-07-13 14:56:45,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-13 14:56:45,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:45,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:45,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 14:56:45,159 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:45,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1680148119, now seen corresponding path program 1 times [2022-07-13 14:56:45,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:45,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821308869] [2022-07-13 14:56:45,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:45,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:45,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:45,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821308869] [2022-07-13 14:56:45,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821308869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:45,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:45,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 14:56:45,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580851352] [2022-07-13 14:56:45,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:45,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 14:56:45,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:45,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 14:56:45,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 14:56:45,423 INFO L87 Difference]: Start difference. First operand 253 states and 309 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:45,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:45,993 INFO L93 Difference]: Finished difference Result 273 states and 327 transitions. [2022-07-13 14:56:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 14:56:45,993 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-13 14:56:45,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:45,994 INFO L225 Difference]: With dead ends: 273 [2022-07-13 14:56:45,994 INFO L226 Difference]: Without dead ends: 270 [2022-07-13 14:56:45,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-07-13 14:56:45,995 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 326 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:45,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 300 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 14:56:45,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-13 14:56:46,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-07-13 14:56:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2339449541284404) internal successors, (269), 233 states have internal predecessors, (269), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 14:56:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 308 transitions. [2022-07-13 14:56:46,013 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 308 transitions. Word has length 30 [2022-07-13 14:56:46,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:46,013 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 308 transitions. [2022-07-13 14:56:46,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:46,013 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 308 transitions. [2022-07-13 14:56:46,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 14:56:46,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:46,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:46,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 14:56:46,014 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:46,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:46,015 INFO L85 PathProgramCache]: Analyzing trace with hash -493122043, now seen corresponding path program 1 times [2022-07-13 14:56:46,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:46,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194793109] [2022-07-13 14:56:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:46,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:46,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194793109] [2022-07-13 14:56:46,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194793109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:46,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:46,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 14:56:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203468691] [2022-07-13 14:56:46,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:46,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 14:56:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 14:56:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-13 14:56:46,323 INFO L87 Difference]: Start difference. First operand 253 states and 308 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:46,998 INFO L93 Difference]: Finished difference Result 272 states and 325 transitions. [2022-07-13 14:56:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 14:56:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-07-13 14:56:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:46,999 INFO L225 Difference]: With dead ends: 272 [2022-07-13 14:56:46,999 INFO L226 Difference]: Without dead ends: 269 [2022-07-13 14:56:47,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-07-13 14:56:47,000 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 321 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:47,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 325 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 14:56:47,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-07-13 14:56:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 253. [2022-07-13 14:56:47,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2293577981651376) internal successors, (268), 233 states have internal predecessors, (268), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 14:56:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 307 transitions. [2022-07-13 14:56:47,013 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 307 transitions. Word has length 33 [2022-07-13 14:56:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:47,013 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 307 transitions. [2022-07-13 14:56:47,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 307 transitions. [2022-07-13 14:56:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-13 14:56:47,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:47,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:47,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 14:56:47,014 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:47,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2033122620, now seen corresponding path program 1 times [2022-07-13 14:56:47,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:47,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799199427] [2022-07-13 14:56:47,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:47,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:47,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:47,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799199427] [2022-07-13 14:56:47,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799199427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:47,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:47,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 14:56:47,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068373337] [2022-07-13 14:56:47,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:47,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 14:56:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:47,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 14:56:47,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-13 14:56:47,290 INFO L87 Difference]: Start difference. First operand 253 states and 307 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:48,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:48,064 INFO L93 Difference]: Finished difference Result 271 states and 323 transitions. [2022-07-13 14:56:48,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 14:56:48,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-13 14:56:48,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:48,066 INFO L225 Difference]: With dead ends: 271 [2022-07-13 14:56:48,066 INFO L226 Difference]: Without dead ends: 268 [2022-07-13 14:56:48,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-13 14:56:48,067 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 324 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:48,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 304 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 14:56:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-07-13 14:56:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 253. [2022-07-13 14:56:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.224770642201835) internal successors, (267), 233 states have internal predecessors, (267), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 14:56:48,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 306 transitions. [2022-07-13 14:56:48,091 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 306 transitions. Word has length 36 [2022-07-13 14:56:48,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:48,092 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 306 transitions. [2022-07-13 14:56:48,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:48,092 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 306 transitions. [2022-07-13 14:56:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-13 14:56:48,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:48,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:48,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 14:56:48,093 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1335339115, now seen corresponding path program 1 times [2022-07-13 14:56:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:48,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957203779] [2022-07-13 14:56:48,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:48,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:48,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:48,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:48,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957203779] [2022-07-13 14:56:48,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957203779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:48,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:48,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 14:56:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137307805] [2022-07-13 14:56:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:48,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 14:56:48,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:48,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 14:56:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-13 14:56:48,297 INFO L87 Difference]: Start difference. First operand 253 states and 306 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:49,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:49,057 INFO L93 Difference]: Finished difference Result 270 states and 321 transitions. [2022-07-13 14:56:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 14:56:49,058 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-13 14:56:49,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:49,059 INFO L225 Difference]: With dead ends: 270 [2022-07-13 14:56:49,059 INFO L226 Difference]: Without dead ends: 267 [2022-07-13 14:56:49,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2022-07-13 14:56:49,060 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 396 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:49,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 312 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 14:56:49,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-07-13 14:56:49,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 253. [2022-07-13 14:56:49,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2201834862385321) internal successors, (266), 233 states have internal predecessors, (266), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 14:56:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 305 transitions. [2022-07-13 14:56:49,074 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 305 transitions. Word has length 39 [2022-07-13 14:56:49,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:49,075 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 305 transitions. [2022-07-13 14:56:49,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:49,075 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 305 transitions. [2022-07-13 14:56:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-13 14:56:49,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:49,076 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:49,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 14:56:49,077 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:49,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1154705564, now seen corresponding path program 1 times [2022-07-13 14:56:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:49,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886612871] [2022-07-13 14:56:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:56:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 14:56:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:49,467 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 14:56:49,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:49,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886612871] [2022-07-13 14:56:49,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886612871] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 14:56:49,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638859880] [2022-07-13 14:56:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:49,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 14:56:49,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:56:49,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 14:56:49,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 14:56:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:49,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 124 conjunts are in the unsatisfiable core [2022-07-13 14:56:49,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:49,703 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-13 14:56:49,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-13 14:56:49,768 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 14:56:49,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-07-13 14:56:49,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-13 14:56:49,791 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-13 14:56:49,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2022-07-13 14:56:49,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-13 14:56:49,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 14:56:49,988 INFO L356 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-07-13 14:56:49,989 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-13 14:56:50,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:50,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 14:56:50,207 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_BEFORE_CALL_2| input size 40 context size 40 output size 40 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:182) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:152) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:764) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:725) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:643) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:335) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) 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) [2022-07-13 14:56:50,211 INFO L158 Benchmark]: Toolchain (without parser) took 8714.34ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 94.4MB in the beginning and 115.6MB in the end (delta: -21.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-07-13 14:56:50,211 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 59.2MB in the end (delta: 24.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:56:50,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.96ms. Allocated memory is still 130.0MB. Free memory was 94.2MB in the beginning and 88.7MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 14:56:50,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.32ms. Allocated memory is still 130.0MB. Free memory was 88.7MB in the beginning and 85.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:50,212 INFO L158 Benchmark]: Boogie Preprocessor took 30.89ms. Allocated memory is still 130.0MB. Free memory was 85.9MB in the beginning and 83.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:50,212 INFO L158 Benchmark]: RCFGBuilder took 504.95ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 62.1MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-13 14:56:50,212 INFO L158 Benchmark]: TraceAbstraction took 7607.91ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 61.5MB in the beginning and 115.6MB in the end (delta: -54.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-07-13 14:56:50,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 59.2MB in the end (delta: 24.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.96ms. Allocated memory is still 130.0MB. Free memory was 94.2MB in the beginning and 88.7MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.32ms. Allocated memory is still 130.0MB. Free memory was 88.7MB in the beginning and 85.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.89ms. Allocated memory is still 130.0MB. Free memory was 85.9MB in the beginning and 83.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.95ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 62.1MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7607.91ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 61.5MB in the beginning and 115.6MB in the end (delta: -54.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_BEFORE_CALL_2| input size 40 context size 40 output size 40 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_BEFORE_CALL_2| input size 40 context size 40 output size 40: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-13 14:56:50,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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/heap-manipulation/bubble_sort_linux-2.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 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:56:51,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:56:51,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:56:51,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:56:51,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:56:51,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:56:51,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:56:51,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:56:51,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:56:51,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:56:51,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:56:51,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:56:51,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:56:51,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:56:51,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:56:51,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:56:51,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:56:51,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:56:51,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:56:51,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:56:51,991 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:56:51,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:56:51,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:56:51,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:56:51,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:56:52,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:56:52,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:56:52,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:56:52,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:56:52,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:56:52,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:56:52,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:56:52,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:56:52,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:56:52,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:56:52,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:56:52,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:56:52,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:56:52,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:56:52,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:56:52,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:56:52,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:56:52,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:56:52,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:56:52,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:56:52,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:56:52,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:56:52,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:56:52,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:56:52,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:56:52,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:56:52,042 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:56:52,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:56:52,043 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:56:52,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:56:52,044 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:56:52,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:52,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:56:52,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:56:52,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:56:52,046 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:56:52,046 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:56:52,046 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:56:52,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:56:52,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:56:52,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:56:52,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2022-07-13 14:56:52,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:56:52,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:56:52,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:56:52,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:56:52,454 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:56:52,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2022-07-13 14:56:52,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d239c910c/9d19370e56f44756bd6c34388627f0f9/FLAGcb4111e88 [2022-07-13 14:56:52,912 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:56:52,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2022-07-13 14:56:52,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d239c910c/9d19370e56f44756bd6c34388627f0f9/FLAGcb4111e88 [2022-07-13 14:56:53,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d239c910c/9d19370e56f44756bd6c34388627f0f9 [2022-07-13 14:56:53,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:56:53,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:56:53,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:53,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:56:53,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:56:53,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18629fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53, skipping insertion in model container [2022-07-13 14:56:53,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:56:53,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:56:53,639 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/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-07-13 14:56:53,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:53,705 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-13 14:56:53,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:56:53,738 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/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-07-13 14:56:53,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:53,769 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:56:53,798 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/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2022-07-13 14:56:53,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:53,862 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:56:53,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53 WrapperNode [2022-07-13 14:56:53,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:53,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:53,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:56:53,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:56:53,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,923 INFO L137 Inliner]: procedures = 235, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2022-07-13 14:56:53,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:53,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:56:53,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:56:53,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:56:53,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:56:53,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:56:53,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:56:53,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:56:53,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (1/1) ... [2022-07-13 14:56:53,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:53,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:56:53,981 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) [2022-07-13 14:56:53,999 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 [2022-07-13 14:56:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 14:56:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 14:56:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-07-13 14:56:54,032 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-07-13 14:56:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:56:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 14:56:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 14:56:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:56:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-07-13 14:56:54,032 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-07-13 14:56:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-07-13 14:56:54,032 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-07-13 14:56:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 14:56:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:56:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 14:56:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-13 14:56:54,033 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-13 14:56:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:56:54,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:56:54,139 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:56:54,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:56:54,474 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:56:54,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:56:54,479 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2022-07-13 14:56:54,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:54 BoogieIcfgContainer [2022-07-13 14:56:54,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:56:54,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:56:54,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:56:54,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:56:54,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:56:53" (1/3) ... [2022-07-13 14:56:54,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb9a343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:54, skipping insertion in model container [2022-07-13 14:56:54,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:53" (2/3) ... [2022-07-13 14:56:54,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb9a343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:54, skipping insertion in model container [2022-07-13 14:56:54,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:54" (3/3) ... [2022-07-13 14:56:54,485 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2022-07-13 14:56:54,498 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:56:54,498 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:56:54,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:56:54,547 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@54bc122e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49fd37af [2022-07-13 14:56:54,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:56:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 88 states have (on average 1.75) internal successors, (154), 107 states have internal predecessors, (154), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-07-13 14:56:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 14:56:54,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:54,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:54,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:54,560 INFO L85 PathProgramCache]: Analyzing trace with hash 844459879, now seen corresponding path program 1 times [2022-07-13 14:56:54,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:54,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083747038] [2022-07-13 14:56:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:54,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:54,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:54,571 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) [2022-07-13 14:56:54,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:56:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:54,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:56:54,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:54,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:54,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:54,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083747038] [2022-07-13 14:56:54,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083747038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:54,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:54,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:56:54,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100560496] [2022-07-13 14:56:54,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:54,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:56:54,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:56:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:54,696 INFO L87 Difference]: Start difference. First operand has 117 states, 88 states have (on average 1.75) internal successors, (154), 107 states have internal predecessors, (154), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:56:54,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:54,729 INFO L93 Difference]: Finished difference Result 228 states and 395 transitions. [2022-07-13 14:56:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:56:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 14:56:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:54,746 INFO L225 Difference]: With dead ends: 228 [2022-07-13 14:56:54,746 INFO L226 Difference]: Without dead ends: 106 [2022-07-13 14:56:54,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:54,756 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:54,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:56:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-13 14:56:54,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-07-13 14:56:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 96 states have internal predecessors, (101), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 14:56:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2022-07-13 14:56:54,788 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 9 [2022-07-13 14:56:54,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:54,789 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2022-07-13 14:56:54,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:56:54,789 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2022-07-13 14:56:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 14:56:54,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:54,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:54,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-13 14:56:54,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:54,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:54,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1622181416, now seen corresponding path program 1 times [2022-07-13 14:56:55,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:55,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802200553] [2022-07-13 14:56:55,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:55,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:55,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:55,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:55,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:56:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:55,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 14:56:55,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:55,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:55,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:55,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:55,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802200553] [2022-07-13 14:56:55,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802200553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:55,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:55,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 14:56:55,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084552883] [2022-07-13 14:56:55,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:55,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:56:55,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:55,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:56:55,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:56:55,232 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:55,319 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2022-07-13 14:56:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 14:56:55,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-07-13 14:56:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:55,320 INFO L225 Difference]: With dead ends: 108 [2022-07-13 14:56:55,320 INFO L226 Difference]: Without dead ends: 105 [2022-07-13 14:56:55,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:55,322 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 169 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:55,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 253 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 14:56:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-13 14:56:55,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-07-13 14:56:55,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 95 states have internal predecessors, (100), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 14:56:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2022-07-13 14:56:55,330 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 20 [2022-07-13 14:56:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:55,331 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2022-07-13 14:56:55,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2022-07-13 14:56:55,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 14:56:55,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:55,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:55,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:55,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:55,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:55,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash -845475890, now seen corresponding path program 1 times [2022-07-13 14:56:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:55,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667238664] [2022-07-13 14:56:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:55,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:55,544 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:55,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:56:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:55,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-13 14:56:55,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:55,740 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-13 14:56:55,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-13 14:56:55,981 INFO L356 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-07-13 14:56:55,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-07-13 14:56:56,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 14:56:56,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 14:56:56,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-13 14:57:00,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:57:00,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:57:00,203 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-07-13 14:57:00,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 355 treesize of output 312 [2022-07-13 14:57:00,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-13 14:57:00,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-13 14:57:00,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-13 14:57:00,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:57:00,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667238664] [2022-07-13 14:57:00,335 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-13 14:57:00,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 14:57:00,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:57:00,537 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @2a551a63) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.MultiDimensionalSelect.(MultiDimensionalSelect.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.constructNestedStoreUpdateConstraintForOnePosition(ArrayIndexEqualityManager.java:415) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.constructNestedStoreUpdateConstraint(ArrayIndexEqualityManager.java:449) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.constructWriteConstraints2(Elim1Store.java:975) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:314) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:182) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:152) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:764) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:725) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:643) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:335) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDistributivityAndPush(QuantifierPusher.java:409) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:354) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDistributivityAndPush(QuantifierPusher.java:409) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:354) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) 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) [2022-07-13 14:57:00,542 INFO L158 Benchmark]: Toolchain (without parser) took 7305.14ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 32.9MB in the beginning and 49.4MB in the end (delta: -16.5MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2022-07-13 14:57:00,543 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:57:00,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.99ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 32.7MB in the beginning and 41.9MB in the end (delta: -9.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-07-13 14:57:00,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.92ms. Allocated memory is still 69.2MB. Free memory was 41.9MB in the beginning and 39.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 14:57:00,544 INFO L158 Benchmark]: Boogie Preprocessor took 35.27ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 36.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:57:00,544 INFO L158 Benchmark]: RCFGBuilder took 521.04ms. Allocated memory is still 69.2MB. Free memory was 36.3MB in the beginning and 44.6MB in the end (delta: -8.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-07-13 14:57:00,544 INFO L158 Benchmark]: TraceAbstraction took 6059.71ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 44.0MB in the beginning and 49.4MB in the end (delta: -5.4MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2022-07-13 14:57:00,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.99ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 32.7MB in the beginning and 41.9MB in the end (delta: -9.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.92ms. Allocated memory is still 69.2MB. Free memory was 41.9MB in the beginning and 39.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.27ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 36.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.04ms. Allocated memory is still 69.2MB. Free memory was 36.3MB in the beginning and 44.6MB in the end (delta: -8.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6059.71ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 44.0MB in the beginning and 49.4MB in the end (delta: -5.4MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @2a551a63) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @2a551a63): de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.MultiDimensionalSelect.(MultiDimensionalSelect.java:103) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-13 14:57:00,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @2a551a63)