./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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/forester-heap/sll-rb-cnstr_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6070ac475d5b3c3d5905eb0c203232134efabc1c427fcfbbf8cf82789693617b --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 23:00:37,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 23:00:37,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 23:00:37,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 23:00:37,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 23:00:37,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 23:00:37,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 23:00:37,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 23:00:37,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 23:00:37,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 23:00:37,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 23:00:37,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 23:00:37,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 23:00:37,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 23:00:37,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 23:00:37,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 23:00:37,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 23:00:37,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 23:00:37,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 23:00:37,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 23:00:37,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 23:00:37,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 23:00:37,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 23:00:37,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 23:00:37,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 23:00:37,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 23:00:37,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 23:00:37,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 23:00:37,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 23:00:37,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 23:00:37,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 23:00:37,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 23:00:37,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 23:00:37,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 23:00:37,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 23:00:37,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 23:00:37,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 23:00:37,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 23:00:37,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 23:00:37,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 23:00:37,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 23:00:37,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 23:00:37,646 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 23:00:37,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 23:00:37,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 23:00:37,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 23:00:37,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 23:00:37,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 23:00:37,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 23:00:37,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 23:00:37,649 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 23:00:37,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 23:00:37,649 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 23:00:37,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 23:00:37,650 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 23:00:37,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 23:00:37,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 23:00:37,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 23:00:37,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 23:00:37,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 23:00:37,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 23:00:37,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 23:00:37,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 23:00:37,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 23:00:37,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 23:00:37,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 23:00:37,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 23:00:37,653 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 23:00:37,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 23:00:37,653 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 23:00:37,653 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6070ac475d5b3c3d5905eb0c203232134efabc1c427fcfbbf8cf82789693617b [2023-02-17 23:00:37,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 23:00:37,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 23:00:37,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 23:00:37,857 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 23:00:37,857 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 23:00:37,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i [2023-02-17 23:00:38,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 23:00:38,997 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 23:00:39,000 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i [2023-02-17 23:00:39,008 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733b36399/26b09d890f1b4cf29dff91c5504ee058/FLAGe21a43e7b [2023-02-17 23:00:39,017 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733b36399/26b09d890f1b4cf29dff91c5504ee058 [2023-02-17 23:00:39,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 23:00:39,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 23:00:39,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 23:00:39,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 23:00:39,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 23:00:39,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161171be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39, skipping insertion in model container [2023-02-17 23:00:39,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 23:00:39,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 23:00:39,204 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22480,22493] [2023-02-17 23:00:39,207 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22552,22565] [2023-02-17 23:00:39,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22704,22717] [2023-02-17 23:00:39,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22778,22791] [2023-02-17 23:00:39,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 23:00:39,216 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 23:00:39,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22480,22493] [2023-02-17 23:00:39,238 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22552,22565] [2023-02-17 23:00:39,238 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22704,22717] [2023-02-17 23:00:39,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i[22778,22791] [2023-02-17 23:00:39,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 23:00:39,257 INFO L208 MainTranslator]: Completed translation [2023-02-17 23:00:39,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39 WrapperNode [2023-02-17 23:00:39,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 23:00:39,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 23:00:39,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 23:00:39,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 23:00:39,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,283 INFO L138 Inliner]: procedures = 119, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2023-02-17 23:00:39,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 23:00:39,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 23:00:39,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 23:00:39,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 23:00:39,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 23:00:39,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 23:00:39,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 23:00:39,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 23:00:39,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (1/1) ... [2023-02-17 23:00:39,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 23:00:39,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:00:39,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-17 23:00:39,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-17 23:00:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 23:00:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 23:00:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 23:00:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 23:00:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 23:00:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-17 23:00:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 23:00:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 23:00:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 23:00:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 23:00:39,443 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 23:00:39,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 23:00:39,600 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 23:00:39,604 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 23:00:39,604 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2023-02-17 23:00:39,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 11:00:39 BoogieIcfgContainer [2023-02-17 23:00:39,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 23:00:39,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 23:00:39,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 23:00:39,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 23:00:39,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 11:00:39" (1/3) ... [2023-02-17 23:00:39,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658b65e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 11:00:39, skipping insertion in model container [2023-02-17 23:00:39,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 11:00:39" (2/3) ... [2023-02-17 23:00:39,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658b65e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 11:00:39, skipping insertion in model container [2023-02-17 23:00:39,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 11:00:39" (3/3) ... [2023-02-17 23:00:39,611 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-1.i [2023-02-17 23:00:39,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 23:00:39,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-17 23:00:39,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 23:00:39,655 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62375d8a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 23:00:39,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-17 23:00:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 23:00:39,662 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:39,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 23:00:39,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash 889968582, now seen corresponding path program 1 times [2023-02-17 23:00:39,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:39,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128183957] [2023-02-17 23:00:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:39,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128183957] [2023-02-17 23:00:39,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128183957] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 23:00:39,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 23:00:39,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 23:00:39,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543399382] [2023-02-17 23:00:39,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 23:00:39,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 23:00:39,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:00:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 23:00:39,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 23:00:39,846 INFO L87 Difference]: Start difference. First operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:39,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:00:39,858 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2023-02-17 23:00:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 23:00:39,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 23:00:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:00:39,863 INFO L225 Difference]: With dead ends: 61 [2023-02-17 23:00:39,863 INFO L226 Difference]: Without dead ends: 27 [2023-02-17 23:00:39,872 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 [2023-02-17 23:00:39,874 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2023-02-17 23:00:39,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 23:00:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-17 23:00:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-17 23:00:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:39,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-17 23:00:39,896 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 6 [2023-02-17 23:00:39,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:00:39,896 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-17 23:00:39,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:39,896 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-17 23:00:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 23:00:39,897 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:39,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:00:39,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 23:00:39,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:39,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:39,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1806853233, now seen corresponding path program 1 times [2023-02-17 23:00:39,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:39,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835155781] [2023-02-17 23:00:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:39,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:39,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:39,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835155781] [2023-02-17 23:00:39,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835155781] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 23:00:39,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 23:00:39,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 23:00:39,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219133837] [2023-02-17 23:00:39,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 23:00:39,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 23:00:39,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:00:39,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 23:00:39,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 23:00:39,985 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:00:40,029 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-02-17 23:00:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 23:00:40,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 23:00:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:00:40,033 INFO L225 Difference]: With dead ends: 30 [2023-02-17 23:00:40,033 INFO L226 Difference]: Without dead ends: 28 [2023-02-17 23:00:40,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 23:00:40,035 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 23:00:40,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 28 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 23:00:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-17 23:00:40,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2023-02-17 23:00:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-02-17 23:00:40,041 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 7 [2023-02-17 23:00:40,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:00:40,041 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-17 23:00:40,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:40,041 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-02-17 23:00:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 23:00:40,042 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:40,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:00:40,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 23:00:40,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:40,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:40,043 INFO L85 PathProgramCache]: Analyzing trace with hash -856511048, now seen corresponding path program 1 times [2023-02-17 23:00:40,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:40,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72322884] [2023-02-17 23:00:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:40,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:40,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72322884] [2023-02-17 23:00:40,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72322884] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 23:00:40,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 23:00:40,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 23:00:40,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639156898] [2023-02-17 23:00:40,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 23:00:40,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 23:00:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:00:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 23:00:40,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 23:00:40,232 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:40,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:00:40,310 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2023-02-17 23:00:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 23:00:40,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 23:00:40,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:00:40,312 INFO L225 Difference]: With dead ends: 50 [2023-02-17 23:00:40,312 INFO L226 Difference]: Without dead ends: 48 [2023-02-17 23:00:40,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-17 23:00:40,313 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 23:00:40,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 53 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 23:00:40,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-17 23:00:40,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2023-02-17 23:00:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-02-17 23:00:40,319 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 10 [2023-02-17 23:00:40,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:00:40,319 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-02-17 23:00:40,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-02-17 23:00:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-17 23:00:40,321 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:40,322 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:00:40,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 23:00:40,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:40,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:40,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1594081566, now seen corresponding path program 1 times [2023-02-17 23:00:40,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:40,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133325465] [2023-02-17 23:00:40,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:40,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:40,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:40,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:40,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133325465] [2023-02-17 23:00:40,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133325465] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 23:00:40,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646433928] [2023-02-17 23:00:40,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:40,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:00:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:00:40,723 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) [2023-02-17 23:00:40,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 23:00:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:40,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-17 23:00:40,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 23:00:40,899 INFO L350 Elim1Store]: Elim1 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 6 treesize of output 5 [2023-02-17 23:00:40,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-02-17 23:00:40,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:40,934 INFO L350 Elim1Store]: Elim1 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 39 [2023-02-17 23:00:40,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:40,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-02-17 23:00:40,944 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 18 [2023-02-17 23:00:40,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:40,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2023-02-17 23:00:40,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:40,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 38 [2023-02-17 23:00:41,022 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 7 [2023-02-17 23:00:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:41,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 23:00:41,148 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-17 23:00:41,149 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:41,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 117 [2023-02-17 23:00:41,156 INFO L350 Elim1Store]: Elim1 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 153 treesize of output 141 [2023-02-17 23:00:41,159 INFO L350 Elim1Store]: Elim1 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 50 treesize of output 42 [2023-02-17 23:00:41,163 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-17 23:00:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:41,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646433928] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 23:00:41,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 23:00:41,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-17 23:00:41,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007709347] [2023-02-17 23:00:41,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 23:00:41,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-17 23:00:41,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:00:41,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-17 23:00:41,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-02-17 23:00:41,172 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:00:41,289 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-02-17 23:00:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 23:00:41,290 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-17 23:00:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:00:41,293 INFO L225 Difference]: With dead ends: 38 [2023-02-17 23:00:41,293 INFO L226 Difference]: Without dead ends: 36 [2023-02-17 23:00:41,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-02-17 23:00:41,297 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 69 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 23:00:41,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 62 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 23:00:41,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-17 23:00:41,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 23. [2023-02-17 23:00:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-17 23:00:41,308 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2023-02-17 23:00:41,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:00:41,309 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-17 23:00:41,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,310 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-17 23:00:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-17 23:00:41,310 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:41,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:00:41,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 23:00:41,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:00:41,516 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:41,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1689639521, now seen corresponding path program 1 times [2023-02-17 23:00:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:41,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939622046] [2023-02-17 23:00:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:41,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:41,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939622046] [2023-02-17 23:00:41,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939622046] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 23:00:41,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 23:00:41,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 23:00:41,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992384447] [2023-02-17 23:00:41,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 23:00:41,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 23:00:41,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:00:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 23:00:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 23:00:41,569 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:00:41,648 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-02-17 23:00:41,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 23:00:41,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-17 23:00:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:00:41,648 INFO L225 Difference]: With dead ends: 38 [2023-02-17 23:00:41,649 INFO L226 Difference]: Without dead ends: 26 [2023-02-17 23:00:41,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 23:00:41,649 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 23:00:41,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 23:00:41,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-17 23:00:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-02-17 23:00:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-02-17 23:00:41,653 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 14 [2023-02-17 23:00:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:00:41,653 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-17 23:00:41,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-02-17 23:00:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 23:00:41,654 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:41,654 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:00:41,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 23:00:41,654 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:41,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2084817261, now seen corresponding path program 1 times [2023-02-17 23:00:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:41,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76739113] [2023-02-17 23:00:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:41,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:41,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:41,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76739113] [2023-02-17 23:00:41,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76739113] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 23:00:41,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245205632] [2023-02-17 23:00:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:41,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:00:41,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:00:41,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 23:00:41,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 23:00:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:41,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-17 23:00:41,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 23:00:41,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:41,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-02-17 23:00:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:41,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-02-17 23:00:41,797 INFO L350 Elim1Store]: Elim1 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 [2023-02-17 23:00:41,799 INFO L350 Elim1Store]: Elim1 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 [2023-02-17 23:00:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:41,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 23:00:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:41,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245205632] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 23:00:41,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 23:00:41,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-02-17 23:00:41,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408485899] [2023-02-17 23:00:41,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 23:00:41,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 23:00:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 23:00:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 23:00:41,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-17 23:00:41,805 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 23:00:41,857 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2023-02-17 23:00:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 23:00:41,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-17 23:00:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 23:00:41,857 INFO L225 Difference]: With dead ends: 49 [2023-02-17 23:00:41,858 INFO L226 Difference]: Without dead ends: 27 [2023-02-17 23:00:41,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-17 23:00:41,858 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 23:00:41,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 23:00:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-17 23:00:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-17 23:00:41,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-17 23:00:41,862 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2023-02-17 23:00:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 23:00:41,862 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-17 23:00:41,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 23:00:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-17 23:00:41,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 23:00:41,863 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 23:00:41,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 23:00:41,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 23:00:42,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-17 23:00:42,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-17 23:00:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 23:00:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1088473273, now seen corresponding path program 1 times [2023-02-17 23:00:42,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 23:00:42,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42990795] [2023-02-17 23:00:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:42,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 23:00:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 23:00:42,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 23:00:42,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42990795] [2023-02-17 23:00:42,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42990795] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 23:00:42,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635465566] [2023-02-17 23:00:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 23:00:42,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 23:00:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 23:00:42,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 23:00:42,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 23:00:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 23:00:42,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-17 23:00:42,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 23:00:42,446 INFO L350 Elim1Store]: Elim1 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 6 treesize of output 5 [2023-02-17 23:00:42,456 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:42,456 INFO L350 Elim1Store]: Elim1 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 39 [2023-02-17 23:00:42,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 23:00:42,461 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 23:00:42,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 23:00:42,467 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 23:00:42,486 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:42,487 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 118 [2023-02-17 23:00:42,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:42,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 23:00:42,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2023-02-17 23:00:42,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2023-02-17 23:00:42,504 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:42,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 48 [2023-02-17 23:00:42,512 INFO L350 Elim1Store]: Elim1 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 93 treesize of output 75 [2023-02-17 23:00:42,618 INFO L350 Elim1Store]: Elim1 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 [2023-02-17 23:00:42,738 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 23:00:42,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 23 select indices, 23 select index equivalence classes, 0 disjoint index pairs (out of 253 index pairs), introduced 37 new quantified variables, introduced 253 case distinctions, treesize of input 637 treesize of output 2393