./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext/tree_of_cslls.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 574ddb4e 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext/tree_of_cslls.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e174a1790a7df4dcba920aa7097618d66c8703aa13de1aa6af1a2c5f7cb0971c --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 20:51:22,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 20:51:22,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 20:51:22,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 20:51:22,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 20:51:22,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 20:51:22,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 20:51:22,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 20:51:22,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 20:51:22,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 20:51:22,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 20:51:22,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 20:51:22,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 20:51:22,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 20:51:22,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 20:51:22,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 20:51:22,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 20:51:22,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 20:51:22,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 20:51:22,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 20:51:22,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 20:51:22,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 20:51:22,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 20:51:22,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 20:51:22,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 20:51:22,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 20:51:22,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 20:51:22,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 20:51:22,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 20:51:22,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 20:51:22,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 20:51:22,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 20:51:22,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 20:51:22,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 20:51:22,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 20:51:22,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 20:51:22,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 20:51:22,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 20:51:22,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 20:51:22,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 20:51:22,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 20:51:22,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 20:51:22,390 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 20:51:22,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 20:51:22,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 20:51:22,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 20:51:22,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 20:51:22,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 20:51:22,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 20:51:22,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 20:51:22,393 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 20:51:22,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 20:51:22,394 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 20:51:22,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 20:51:22,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 20:51:22,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 20:51:22,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 20:51:22,395 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 20:51:22,395 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 20:51:22,395 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 20:51:22,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 20:51:22,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 20:51:22,396 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 20:51:22,396 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 20:51:22,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 20:51:22,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 20:51:22,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 20:51:22,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 20:51:22,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 20:51:22,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 20:51:22,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 20:51:22,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 20:51:22,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 20:51:22,398 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 20:51:22,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 20:51:22,399 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 20:51:22,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e174a1790a7df4dcba920aa7097618d66c8703aa13de1aa6af1a2c5f7cb0971c [2023-02-18 20:51:22,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 20:51:22,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 20:51:22,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 20:51:22,700 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 20:51:22,700 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 20:51:22,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/tree_of_cslls.i [2023-02-18 20:51:23,733 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 20:51:23,973 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 20:51:23,973 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/tree_of_cslls.i [2023-02-18 20:51:23,984 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a069c0b7f/f1966d4c888b4b68a55b43f0b8a8200c/FLAGde39fb09f [2023-02-18 20:51:23,996 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a069c0b7f/f1966d4c888b4b68a55b43f0b8a8200c [2023-02-18 20:51:23,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 20:51:24,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 20:51:24,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 20:51:24,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 20:51:24,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 20:51:24,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:51:23" (1/1) ... [2023-02-18 20:51:24,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255f3745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24, skipping insertion in model container [2023-02-18 20:51:24,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:51:23" (1/1) ... [2023-02-18 20:51:24,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 20:51:24,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 20:51:24,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 20:51:24,319 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 20:51:24,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 20:51:24,398 INFO L208 MainTranslator]: Completed translation [2023-02-18 20:51:24,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24 WrapperNode [2023-02-18 20:51:24,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 20:51:24,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 20:51:24,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 20:51:24,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 20:51:24,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,451 INFO L138 Inliner]: procedures = 123, calls = 63, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 216 [2023-02-18 20:51:24,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 20:51:24,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 20:51:24,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 20:51:24,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 20:51:24,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 20:51:24,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 20:51:24,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 20:51:24,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 20:51:24,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (1/1) ... [2023-02-18 20:51:24,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 20:51:24,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 20:51:24,530 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) [2023-02-18 20:51:24,556 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 [2023-02-18 20:51:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 20:51:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 20:51:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 20:51:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 20:51:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 20:51:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 20:51:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 20:51:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 20:51:24,738 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 20:51:24,739 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 20:51:25,143 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 20:51:25,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 20:51:25,149 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2023-02-18 20:51:25,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:51:25 BoogieIcfgContainer [2023-02-18 20:51:25,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 20:51:25,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 20:51:25,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 20:51:25,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 20:51:25,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:51:23" (1/3) ... [2023-02-18 20:51:25,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e360f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:51:25, skipping insertion in model container [2023-02-18 20:51:25,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:51:24" (2/3) ... [2023-02-18 20:51:25,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e360f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:51:25, skipping insertion in model container [2023-02-18 20:51:25,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:51:25" (3/3) ... [2023-02-18 20:51:25,162 INFO L112 eAbstractionObserver]: Analyzing ICFG tree_of_cslls.i [2023-02-18 20:51:25,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 20:51:25,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 104 error locations. [2023-02-18 20:51:25,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 20:51:25,248 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@5b94ab59, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 20:51:25,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2023-02-18 20:51:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 105 states have (on average 2.219047619047619) internal successors, (233), 209 states have internal predecessors, (233), 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) [2023-02-18 20:51:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 20:51:25,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:25,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 20:51:25,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:25,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:25,278 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-02-18 20:51:25,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:25,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943119182] [2023-02-18 20:51:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:25,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:25,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943119182] [2023-02-18 20:51:25,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943119182] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:25,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:25,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:51:25,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947846582] [2023-02-18 20:51:25,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:25,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:51:25,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:25,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:51:25,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:25,522 INFO L87 Difference]: Start difference. First operand has 210 states, 105 states have (on average 2.219047619047619) internal successors, (233), 209 states have internal predecessors, (233), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 20:51:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:25,784 INFO L93 Difference]: Finished difference Result 282 states and 304 transitions. [2023-02-18 20:51:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:51:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-18 20:51:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:25,807 INFO L225 Difference]: With dead ends: 282 [2023-02-18 20:51:25,807 INFO L226 Difference]: Without dead ends: 278 [2023-02-18 20:51:25,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:25,815 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 200 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:25,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 199 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 20:51:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-02-18 20:51:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 199. [2023-02-18 20:51:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 104 states have (on average 2.0673076923076925) internal successors, (215), 198 states have internal predecessors, (215), 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) [2023-02-18 20:51:25,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 215 transitions. [2023-02-18 20:51:25,857 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 215 transitions. Word has length 3 [2023-02-18 20:51:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:25,861 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 215 transitions. [2023-02-18 20:51:25,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 20:51:25,862 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 215 transitions. [2023-02-18 20:51:25,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 20:51:25,862 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:25,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 20:51:25,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 20:51:25,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:25,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:25,864 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-18 20:51:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:25,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397896409] [2023-02-18 20:51:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:25,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:25,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:25,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397896409] [2023-02-18 20:51:25,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397896409] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:25,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:25,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:51:25,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366604080] [2023-02-18 20:51:25,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:25,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:51:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:25,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:51:25,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:25,940 INFO L87 Difference]: Start difference. First operand 199 states and 215 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 20:51:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:26,093 INFO L93 Difference]: Finished difference Result 197 states and 213 transitions. [2023-02-18 20:51:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:51:26,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-18 20:51:26,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:26,095 INFO L225 Difference]: With dead ends: 197 [2023-02-18 20:51:26,095 INFO L226 Difference]: Without dead ends: 197 [2023-02-18 20:51:26,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:26,101 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 2 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:26,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 319 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 20:51:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-02-18 20:51:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-02-18 20:51:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 104 states have (on average 2.048076923076923) internal successors, (213), 196 states have internal predecessors, (213), 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) [2023-02-18 20:51:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 213 transitions. [2023-02-18 20:51:26,113 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 213 transitions. Word has length 3 [2023-02-18 20:51:26,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:26,113 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 213 transitions. [2023-02-18 20:51:26,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 20:51:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 213 transitions. [2023-02-18 20:51:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 20:51:26,114 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:26,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 20:51:26,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 20:51:26,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:26,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash 889446153, now seen corresponding path program 1 times [2023-02-18 20:51:26,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:26,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362011202] [2023-02-18 20:51:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:26,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:26,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362011202] [2023-02-18 20:51:26,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362011202] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:26,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:26,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 20:51:26,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984575866] [2023-02-18 20:51:26,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:26,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 20:51:26,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:26,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 20:51:26,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 20:51:26,263 INFO L87 Difference]: Start difference. First operand 197 states and 213 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-02-18 20:51:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:26,594 INFO L93 Difference]: Finished difference Result 354 states and 382 transitions. [2023-02-18 20:51:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 20:51:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-02-18 20:51:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:26,596 INFO L225 Difference]: With dead ends: 354 [2023-02-18 20:51:26,596 INFO L226 Difference]: Without dead ends: 354 [2023-02-18 20:51:26,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 20:51:26,598 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 279 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:26,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 232 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 20:51:26,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-02-18 20:51:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 190. [2023-02-18 20:51:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 104 states have (on average 1.9807692307692308) internal successors, (206), 189 states have internal predecessors, (206), 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) [2023-02-18 20:51:26,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 206 transitions. [2023-02-18 20:51:26,615 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 206 transitions. Word has length 6 [2023-02-18 20:51:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:26,616 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 206 transitions. [2023-02-18 20:51:26,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-02-18 20:51:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 206 transitions. [2023-02-18 20:51:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 20:51:26,617 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:26,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:26,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 20:51:26,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:26,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:26,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1113924364, now seen corresponding path program 1 times [2023-02-18 20:51:26,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:26,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021049026] [2023-02-18 20:51:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:26,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:26,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:26,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021049026] [2023-02-18 20:51:26,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021049026] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:26,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:26,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 20:51:26,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302880007] [2023-02-18 20:51:26,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:26,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 20:51:26,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:26,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 20:51:26,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 20:51:26,777 INFO L87 Difference]: Start difference. First operand 190 states and 206 transitions. Second operand has 5 states, 4 states have (on average 2.5) 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) [2023-02-18 20:51:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:26,975 INFO L93 Difference]: Finished difference Result 189 states and 205 transitions. [2023-02-18 20:51:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 20:51:26,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) 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 [2023-02-18 20:51:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:26,978 INFO L225 Difference]: With dead ends: 189 [2023-02-18 20:51:26,978 INFO L226 Difference]: Without dead ends: 189 [2023-02-18 20:51:26,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-18 20:51:26,983 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 6 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:26,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 508 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 20:51:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-02-18 20:51:26,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-02-18 20:51:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 104 states have (on average 1.9711538461538463) internal successors, (205), 188 states have internal predecessors, (205), 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) [2023-02-18 20:51:26,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 205 transitions. [2023-02-18 20:51:26,993 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 205 transitions. Word has length 10 [2023-02-18 20:51:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:26,993 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 205 transitions. [2023-02-18 20:51:26,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) 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) [2023-02-18 20:51:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 205 transitions. [2023-02-18 20:51:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 20:51:26,994 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:26,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:26,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 20:51:26,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:26,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1113924365, now seen corresponding path program 1 times [2023-02-18 20:51:26,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:26,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553054657] [2023-02-18 20:51:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:26,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:27,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:27,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553054657] [2023-02-18 20:51:27,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553054657] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:27,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:27,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 20:51:27,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113034780] [2023-02-18 20:51:27,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:27,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 20:51:27,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:27,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 20:51:27,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 20:51:27,158 INFO L87 Difference]: Start difference. First operand 189 states and 205 transitions. Second operand has 5 states, 4 states have (on average 2.5) 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) [2023-02-18 20:51:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:27,354 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2023-02-18 20:51:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 20:51:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) 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 [2023-02-18 20:51:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:27,355 INFO L225 Difference]: With dead ends: 188 [2023-02-18 20:51:27,355 INFO L226 Difference]: Without dead ends: 188 [2023-02-18 20:51:27,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-18 20:51:27,356 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 4 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:27,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 529 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 20:51:27,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-02-18 20:51:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-02-18 20:51:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 104 states have (on average 1.9615384615384615) internal successors, (204), 187 states have internal predecessors, (204), 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) [2023-02-18 20:51:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 204 transitions. [2023-02-18 20:51:27,361 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 204 transitions. Word has length 10 [2023-02-18 20:51:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:27,361 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 204 transitions. [2023-02-18 20:51:27,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) 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) [2023-02-18 20:51:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 204 transitions. [2023-02-18 20:51:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 20:51:27,362 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:27,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:27,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 20:51:27,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1114596085, now seen corresponding path program 1 times [2023-02-18 20:51:27,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:27,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647646909] [2023-02-18 20:51:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:27,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:27,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647646909] [2023-02-18 20:51:27,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647646909] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:27,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:27,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 20:51:27,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919083854] [2023-02-18 20:51:27,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:27,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 20:51:27,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:27,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 20:51:27,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-18 20:51:27,526 INFO L87 Difference]: Start difference. First operand 188 states and 204 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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) [2023-02-18 20:51:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:27,936 INFO L93 Difference]: Finished difference Result 353 states and 389 transitions. [2023-02-18 20:51:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 20:51:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2023-02-18 20:51:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:27,938 INFO L225 Difference]: With dead ends: 353 [2023-02-18 20:51:27,938 INFO L226 Difference]: Without dead ends: 353 [2023-02-18 20:51:27,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-02-18 20:51:27,940 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 475 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:27,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 853 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 20:51:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-02-18 20:51:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 192. [2023-02-18 20:51:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 191 states have internal predecessors, (210), 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) [2023-02-18 20:51:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 210 transitions. [2023-02-18 20:51:27,946 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 210 transitions. Word has length 15 [2023-02-18 20:51:27,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:27,947 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 210 transitions. [2023-02-18 20:51:27,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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) [2023-02-18 20:51:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 210 transitions. [2023-02-18 20:51:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 20:51:27,948 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:27,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:27,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 20:51:27,948 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:27,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1114596086, now seen corresponding path program 1 times [2023-02-18 20:51:27,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:27,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578340251] [2023-02-18 20:51:27,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:27,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:28,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:28,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:28,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578340251] [2023-02-18 20:51:28,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578340251] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:28,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:28,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 20:51:28,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384162757] [2023-02-18 20:51:28,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:28,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 20:51:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 20:51:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-18 20:51:28,285 INFO L87 Difference]: Start difference. First operand 192 states and 210 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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) [2023-02-18 20:51:28,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:28,719 INFO L93 Difference]: Finished difference Result 347 states and 383 transitions. [2023-02-18 20:51:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 20:51:28,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2023-02-18 20:51:28,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:28,721 INFO L225 Difference]: With dead ends: 347 [2023-02-18 20:51:28,722 INFO L226 Difference]: Without dead ends: 347 [2023-02-18 20:51:28,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-02-18 20:51:28,722 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 452 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:28,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 490 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 20:51:28,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-02-18 20:51:28,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 192. [2023-02-18 20:51:28,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 108 states have (on average 1.9351851851851851) internal successors, (209), 191 states have internal predecessors, (209), 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) [2023-02-18 20:51:28,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 209 transitions. [2023-02-18 20:51:28,727 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 209 transitions. Word has length 15 [2023-02-18 20:51:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:28,728 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 209 transitions. [2023-02-18 20:51:28,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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) [2023-02-18 20:51:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 209 transitions. [2023-02-18 20:51:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 20:51:28,729 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:28,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:28,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 20:51:28,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash 192740277, now seen corresponding path program 1 times [2023-02-18 20:51:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:28,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162569065] [2023-02-18 20:51:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:28,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:28,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:28,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162569065] [2023-02-18 20:51:28,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162569065] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:28,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:28,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:51:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251078910] [2023-02-18 20:51:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:28,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:51:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:28,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:51:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:28,790 INFO L87 Difference]: Start difference. First operand 192 states and 209 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-02-18 20:51:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:28,953 INFO L93 Difference]: Finished difference Result 316 states and 348 transitions. [2023-02-18 20:51:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:51:28,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-02-18 20:51:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:28,955 INFO L225 Difference]: With dead ends: 316 [2023-02-18 20:51:28,955 INFO L226 Difference]: Without dead ends: 316 [2023-02-18 20:51:28,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:28,956 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 168 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:28,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 348 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 20:51:28,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-02-18 20:51:28,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 189. [2023-02-18 20:51:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 108 states have (on average 1.9074074074074074) internal successors, (206), 188 states have internal predecessors, (206), 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) [2023-02-18 20:51:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 206 transitions. [2023-02-18 20:51:28,960 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 206 transitions. Word has length 16 [2023-02-18 20:51:28,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:28,963 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 206 transitions. [2023-02-18 20:51:28,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-02-18 20:51:28,964 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 206 transitions. [2023-02-18 20:51:28,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 20:51:28,969 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:28,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:28,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 20:51:28,969 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:28,970 INFO L85 PathProgramCache]: Analyzing trace with hash 192740278, now seen corresponding path program 1 times [2023-02-18 20:51:28,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:28,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84899103] [2023-02-18 20:51:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:28,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:29,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:29,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84899103] [2023-02-18 20:51:29,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84899103] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:29,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:29,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:51:29,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277494526] [2023-02-18 20:51:29,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:29,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:51:29,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:29,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:51:29,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:29,036 INFO L87 Difference]: Start difference. First operand 189 states and 206 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-02-18 20:51:29,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:29,178 INFO L93 Difference]: Finished difference Result 293 states and 325 transitions. [2023-02-18 20:51:29,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:51:29,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-02-18 20:51:29,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:29,180 INFO L225 Difference]: With dead ends: 293 [2023-02-18 20:51:29,180 INFO L226 Difference]: Without dead ends: 293 [2023-02-18 20:51:29,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:29,181 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 139 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:29,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 359 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 20:51:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-02-18 20:51:29,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 187. [2023-02-18 20:51:29,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 108 states have (on average 1.8888888888888888) internal successors, (204), 186 states have internal predecessors, (204), 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) [2023-02-18 20:51:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 204 transitions. [2023-02-18 20:51:29,185 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 204 transitions. Word has length 16 [2023-02-18 20:51:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:29,185 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 204 transitions. [2023-02-18 20:51:29,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-02-18 20:51:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 204 transitions. [2023-02-18 20:51:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 20:51:29,186 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:29,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-18 20:51:29,186 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:29,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1678809590, now seen corresponding path program 1 times [2023-02-18 20:51:29,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:29,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986006192] [2023-02-18 20:51:29,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:29,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:29,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986006192] [2023-02-18 20:51:29,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986006192] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:29,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:29,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 20:51:29,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680064109] [2023-02-18 20:51:29,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:29,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 20:51:29,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:29,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 20:51:29,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 20:51:29,223 INFO L87 Difference]: Start difference. First operand 187 states and 204 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-02-18 20:51:29,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:29,428 INFO L93 Difference]: Finished difference Result 254 states and 278 transitions. [2023-02-18 20:51:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 20:51:29,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 [2023-02-18 20:51:29,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:29,430 INFO L225 Difference]: With dead ends: 254 [2023-02-18 20:51:29,430 INFO L226 Difference]: Without dead ends: 254 [2023-02-18 20:51:29,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 20:51:29,431 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 327 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:29,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 153 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 20:51:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-18 20:51:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 176. [2023-02-18 20:51:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 112 states have (on average 1.7589285714285714) internal successors, (197), 175 states have internal predecessors, (197), 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) [2023-02-18 20:51:29,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 197 transitions. [2023-02-18 20:51:29,435 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 197 transitions. Word has length 17 [2023-02-18 20:51:29,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:29,435 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 197 transitions. [2023-02-18 20:51:29,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-02-18 20:51:29,435 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 197 transitions. [2023-02-18 20:51:29,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 20:51:29,436 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:29,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:29,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-18 20:51:29,436 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:29,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1678809591, now seen corresponding path program 1 times [2023-02-18 20:51:29,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:29,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147041907] [2023-02-18 20:51:29,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:29,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:29,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:29,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147041907] [2023-02-18 20:51:29,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147041907] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:29,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:29,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 20:51:29,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996521485] [2023-02-18 20:51:29,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:29,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 20:51:29,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:29,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 20:51:29,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-18 20:51:29,493 INFO L87 Difference]: Start difference. First operand 176 states and 197 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-02-18 20:51:29,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:29,810 INFO L93 Difference]: Finished difference Result 438 states and 492 transitions. [2023-02-18 20:51:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 20:51:29,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 [2023-02-18 20:51:29,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:29,812 INFO L225 Difference]: With dead ends: 438 [2023-02-18 20:51:29,812 INFO L226 Difference]: Without dead ends: 438 [2023-02-18 20:51:29,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-18 20:51:29,813 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 710 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:29,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 293 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 20:51:29,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-02-18 20:51:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 318. [2023-02-18 20:51:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 254 states have (on average 1.7598425196850394) internal successors, (447), 317 states have internal predecessors, (447), 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) [2023-02-18 20:51:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 447 transitions. [2023-02-18 20:51:29,820 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 447 transitions. Word has length 17 [2023-02-18 20:51:29,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:29,820 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 447 transitions. [2023-02-18 20:51:29,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-02-18 20:51:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 447 transitions. [2023-02-18 20:51:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 20:51:29,826 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:29,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:29,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-18 20:51:29,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:29,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash -445669701, now seen corresponding path program 1 times [2023-02-18 20:51:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:29,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464845086] [2023-02-18 20:51:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:29,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:29,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464845086] [2023-02-18 20:51:29,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464845086] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:29,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:29,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 20:51:29,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691595436] [2023-02-18 20:51:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:29,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 20:51:29,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:29,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 20:51:29,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-18 20:51:29,930 INFO L87 Difference]: Start difference. First operand 318 states and 447 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2023-02-18 20:51:30,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:30,399 INFO L93 Difference]: Finished difference Result 784 states and 1126 transitions. [2023-02-18 20:51:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 20:51:30,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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 19 [2023-02-18 20:51:30,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:30,402 INFO L225 Difference]: With dead ends: 784 [2023-02-18 20:51:30,402 INFO L226 Difference]: Without dead ends: 784 [2023-02-18 20:51:30,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-02-18 20:51:30,402 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 375 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:30,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1029 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 20:51:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2023-02-18 20:51:30,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 317. [2023-02-18 20:51:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 254 states have (on average 1.7559055118110236) internal successors, (446), 316 states have internal predecessors, (446), 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) [2023-02-18 20:51:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 446 transitions. [2023-02-18 20:51:30,411 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 446 transitions. Word has length 19 [2023-02-18 20:51:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:30,411 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 446 transitions. [2023-02-18 20:51:30,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2023-02-18 20:51:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 446 transitions. [2023-02-18 20:51:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 20:51:30,412 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:30,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:30,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-18 20:51:30,412 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:30,413 INFO L85 PathProgramCache]: Analyzing trace with hash -445669700, now seen corresponding path program 1 times [2023-02-18 20:51:30,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:30,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678120450] [2023-02-18 20:51:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:30,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:30,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678120450] [2023-02-18 20:51:30,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678120450] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:30,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:30,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-02-18 20:51:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900883912] [2023-02-18 20:51:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 20:51:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 20:51:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-02-18 20:51:30,696 INFO L87 Difference]: Start difference. First operand 317 states and 446 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-02-18 20:51:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:31,299 INFO L93 Difference]: Finished difference Result 603 states and 842 transitions. [2023-02-18 20:51:31,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 20:51:31,301 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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 19 [2023-02-18 20:51:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:31,303 INFO L225 Difference]: With dead ends: 603 [2023-02-18 20:51:31,303 INFO L226 Difference]: Without dead ends: 603 [2023-02-18 20:51:31,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-02-18 20:51:31,304 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 388 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:31,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 957 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 20:51:31,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-02-18 20:51:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 321. [2023-02-18 20:51:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 258 states have (on average 1.744186046511628) internal successors, (450), 320 states have internal predecessors, (450), 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) [2023-02-18 20:51:31,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 450 transitions. [2023-02-18 20:51:31,311 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 450 transitions. Word has length 19 [2023-02-18 20:51:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:31,311 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 450 transitions. [2023-02-18 20:51:31,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-02-18 20:51:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 450 transitions. [2023-02-18 20:51:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 20:51:31,312 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:31,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:31,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-18 20:51:31,312 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:31,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1571609538, now seen corresponding path program 1 times [2023-02-18 20:51:31,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:31,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686575717] [2023-02-18 20:51:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:31,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686575717] [2023-02-18 20:51:31,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686575717] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:31,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:31,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 20:51:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350823312] [2023-02-18 20:51:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:31,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:51:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:51:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:31,337 INFO L87 Difference]: Start difference. First operand 321 states and 450 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-18 20:51:31,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:31,353 INFO L93 Difference]: Finished difference Result 395 states and 528 transitions. [2023-02-18 20:51:31,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:51:31,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-02-18 20:51:31,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:31,355 INFO L225 Difference]: With dead ends: 395 [2023-02-18 20:51:31,355 INFO L226 Difference]: Without dead ends: 395 [2023-02-18 20:51:31,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:31,356 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 163 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:31,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 296 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 20:51:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-02-18 20:51:31,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 361. [2023-02-18 20:51:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 298 states have (on average 1.7718120805369129) internal successors, (528), 360 states have internal predecessors, (528), 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) [2023-02-18 20:51:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 528 transitions. [2023-02-18 20:51:31,362 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 528 transitions. Word has length 19 [2023-02-18 20:51:31,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:31,363 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 528 transitions. [2023-02-18 20:51:31,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-18 20:51:31,363 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 528 transitions. [2023-02-18 20:51:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 20:51:31,364 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:31,364 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] [2023-02-18 20:51:31,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-18 20:51:31,364 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:31,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:31,365 INFO L85 PathProgramCache]: Analyzing trace with hash -727311539, now seen corresponding path program 1 times [2023-02-18 20:51:31,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:31,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355318462] [2023-02-18 20:51:31,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:31,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:31,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355318462] [2023-02-18 20:51:31,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355318462] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:51:31,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:51:31,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 20:51:31,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004335080] [2023-02-18 20:51:31,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:51:31,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:51:31,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:51:31,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:31,396 INFO L87 Difference]: Start difference. First operand 361 states and 528 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 20:51:31,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:31,403 INFO L93 Difference]: Finished difference Result 365 states and 532 transitions. [2023-02-18 20:51:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:51:31,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-02-18 20:51:31,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:31,405 INFO L225 Difference]: With dead ends: 365 [2023-02-18 20:51:31,405 INFO L226 Difference]: Without dead ends: 365 [2023-02-18 20:51:31,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:51:31,406 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:31,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 20:51:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-02-18 20:51:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2023-02-18 20:51:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 302 states have (on average 1.7615894039735098) internal successors, (532), 364 states have internal predecessors, (532), 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) [2023-02-18 20:51:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 532 transitions. [2023-02-18 20:51:31,412 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 532 transitions. Word has length 23 [2023-02-18 20:51:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:31,412 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 532 transitions. [2023-02-18 20:51:31,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 20:51:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 532 transitions. [2023-02-18 20:51:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 20:51:31,413 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:31,414 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:31,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-18 20:51:31,414 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 97933121, now seen corresponding path program 1 times [2023-02-18 20:51:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:31,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516403371] [2023-02-18 20:51:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:31,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:31,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:31,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516403371] [2023-02-18 20:51:31,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516403371] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 20:51:31,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208099493] [2023-02-18 20:51:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 20:51:31,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 20:51:31,657 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) [2023-02-18 20:51:31,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 20:51:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:31,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-18 20:51:31,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 20:51:31,871 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 [2023-02-18 20:51:31,883 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:31,884 INFO L350 Elim1Store]: Elim1 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 15 [2023-02-18 20:51:31,918 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 13 treesize of output 9 [2023-02-18 20:51:31,967 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:31,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 40 [2023-02-18 20:51:32,003 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,004 INFO L350 Elim1Store]: Elim1 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 15 [2023-02-18 20:51:32,022 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 17 treesize of output 19 [2023-02-18 20:51:32,054 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 49 [2023-02-18 20:51:32,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 69 [2023-02-18 20:51:32,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 52 [2023-02-18 20:51:32,111 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 17 treesize of output 9 [2023-02-18 20:51:32,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:32,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 20:51:32,189 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 84 [2023-02-18 20:51:32,232 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_462 (Array Int Int))) (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~tree~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tree~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_462) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse1))))) is different from false [2023-02-18 20:51:32,238 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_461 (Array Int Int)) (v_ArrVal_462 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_461)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~tree~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_462) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse2))))) is different from false [2023-02-18 20:51:32,347 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,347 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 53 [2023-02-18 20:51:32,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 20:51:32,352 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 442 treesize of output 352 [2023-02-18 20:51:32,355 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 294 treesize of output 238 [2023-02-18 20:51:32,357 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 238 treesize of output 206 [2023-02-18 20:51:32,635 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:32,635 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 17 [2023-02-18 20:51:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-18 20:51:32,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208099493] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 20:51:32,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 20:51:32,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 12] total 25 [2023-02-18 20:51:32,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931941483] [2023-02-18 20:51:32,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 20:51:32,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-18 20:51:32,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:51:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-18 20:51:32,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=466, Unknown=13, NotChecked=90, Total=650 [2023-02-18 20:51:32,671 INFO L87 Difference]: Start difference. First operand 365 states and 532 transitions. Second operand has 26 states, 25 states have (on average 2.72) internal successors, (68), 26 states have internal predecessors, (68), 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) [2023-02-18 20:51:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:51:34,029 INFO L93 Difference]: Finished difference Result 955 states and 1346 transitions. [2023-02-18 20:51:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 20:51:34,029 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.72) internal successors, (68), 26 states have internal predecessors, (68), 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 24 [2023-02-18 20:51:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:51:34,033 INFO L225 Difference]: With dead ends: 955 [2023-02-18 20:51:34,033 INFO L226 Difference]: Without dead ends: 955 [2023-02-18 20:51:34,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=882, Unknown=13, NotChecked=130, Total=1260 [2023-02-18 20:51:34,034 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 940 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 3062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 996 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 20:51:34,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 3001 Invalid, 3062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2025 Invalid, 0 Unknown, 996 Unchecked, 1.2s Time] [2023-02-18 20:51:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-02-18 20:51:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 364. [2023-02-18 20:51:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 302 states have (on average 1.7582781456953642) internal successors, (531), 363 states have internal predecessors, (531), 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) [2023-02-18 20:51:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 531 transitions. [2023-02-18 20:51:34,042 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 531 transitions. Word has length 24 [2023-02-18 20:51:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:51:34,043 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 531 transitions. [2023-02-18 20:51:34,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.72) internal successors, (68), 26 states have internal predecessors, (68), 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) [2023-02-18 20:51:34,043 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 531 transitions. [2023-02-18 20:51:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 20:51:34,044 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:51:34,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:51:34,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 20:51:34,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 20:51:34,253 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2023-02-18 20:51:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:51:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash 97933122, now seen corresponding path program 1 times [2023-02-18 20:51:34,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:51:34,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245675471] [2023-02-18 20:51:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:34,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:51:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:34,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:51:34,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245675471] [2023-02-18 20:51:34,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245675471] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 20:51:34,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026984253] [2023-02-18 20:51:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:51:34,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 20:51:34,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 20:51:34,629 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) [2023-02-18 20:51:34,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 20:51:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:51:34,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-18 20:51:34,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 20:51:34,746 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 [2023-02-18 20:51:34,750 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:34,750 INFO L350 Elim1Store]: Elim1 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 15 [2023-02-18 20:51:34,764 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 [2023-02-18 20:51:34,766 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 13 treesize of output 9 [2023-02-18 20:51:34,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:34,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 50 [2023-02-18 20:51:34,797 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 10 treesize of output 9 [2023-02-18 20:51:34,815 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:34,818 INFO L350 Elim1Store]: Elim1 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 15 [2023-02-18 20:51:34,864 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 47 treesize of output 45 [2023-02-18 20:51:34,868 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 26 treesize of output 28 [2023-02-18 20:51:34,920 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:34,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 85 [2023-02-18 20:51:34,927 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 46 treesize of output 35 [2023-02-18 20:51:34,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 20:51:34,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-02-18 20:51:34,970 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:34,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2023-02-18 20:51:35,007 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:35,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 71 [2023-02-18 20:51:35,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 21 [2023-02-18 20:51:35,017 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 19 treesize of output 11 [2023-02-18 20:51:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:51:35,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 20:51:35,410 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:35,411 INFO L350 Elim1Store]: Elim1 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 267 treesize of output 271 [2023-02-18 20:51:35,418 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:35,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 242 treesize of output 260 [2023-02-18 20:51:35,467 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 8 |c_ULTIMATE.start_main_~tree~0#1.offset|))) (let ((.cse1 (forall ((v_ArrVal_560 (Array Int Int))) (< (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_560) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4) 0))) (.cse0 (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_2 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse10 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_prenex_6))) (or (not (>= v_prenex_3 |c_ULTIMATE.start_main_~tmpList~0#1.offset|)) (not (<= v_prenex_5 (select (select .cse10 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4))) (<= 0 (select (select (let ((.cse11 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_prenex_2) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4))) (store .cse10 .cse11 (store (select .cse10 .cse11) v_prenex_5 v_prenex_3))) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4)) (not (<= 0 v_prenex_5)))))) (.cse2 (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_563 (Array Int Int))) (= (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559))) (store .cse9 (select (select .cse9 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4) v_ArrVal_563)) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4) |c_ULTIMATE.start_main_#t~mem9#1.base|)))) (and .cse0 (or .cse1 .cse2) (or .cse1 (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_563 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem9#1.base| (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4) v_ArrVal_563)) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4)))) (or .cse1 (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_563 (Array Int Int))) (let ((.cse5 (select (select (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4) v_ArrVal_563)) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4))) (or (= .cse5 |c_ULTIMATE.start_main_#t~mem9#1.base|) (= |c_ULTIMATE.start_main_#t~mem9#1.base| .cse5))))) (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_561 Int) (|v_ULTIMATE.start_main_#t~mem11#1.offset_10| Int) (v_ArrVal_560 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_560))) (or (< (+ (select (select (let ((.cse8 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4))) (store .cse7 .cse8 (store (select .cse7 .cse8) |v_ULTIMATE.start_main_#t~mem11#1.offset_10| v_ArrVal_561))) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4) 3) (+ |c_ULTIMATE.start_main_#t~mem9#1.offset| 4)) (not (<= 0 |v_ULTIMATE.start_main_#t~mem11#1.offset_10|)) (not (<= |v_ULTIMATE.start_main_#t~mem11#1.offset_10| (select (select .cse7 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse4))) (not (>= v_ArrVal_561 |c_ULTIMATE.start_main_~tmpList~0#1.offset|))))) (or .cse0 .cse2)))) is different from false [2023-02-18 20:51:35,492 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (+ 8 |c_ULTIMATE.start_main_~tree~0#1.offset|))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))) (let ((.cse1 (forall ((v_ArrVal_560 (Array Int Int))) (< (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_560) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5) 0))) (.cse0 (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_2 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse11 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_prenex_6))) (or (not (>= v_prenex_3 |c_ULTIMATE.start_main_~tmpList~0#1.offset|)) (not (<= v_prenex_5 (select (select .cse11 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))) (<= 0 (select (select (let ((.cse12 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_prenex_2) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))) (store .cse11 .cse12 (store (select .cse11 .cse12) v_prenex_5 v_prenex_3))) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5)) (not (<= 0 v_prenex_5)))))) (.cse6 (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_563 (Array Int Int))) (= (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559))) (store .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5) v_ArrVal_563)) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5) .cse2)))) (and .cse0 (or .cse1 (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_563 (Array Int Int))) (let ((.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5) v_ArrVal_563)) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))) (or (= .cse2 .cse3) (= .cse3 .cse2))))) (or .cse1 .cse6) (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_561 Int) (|v_ULTIMATE.start_main_#t~mem11#1.offset_10| Int) (v_ArrVal_560 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_560))) (or (not (<= 0 |v_ULTIMATE.start_main_#t~mem11#1.offset_10|)) (not (<= |v_ULTIMATE.start_main_#t~mem11#1.offset_10| (select (select .cse7 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))) (not (>= v_ArrVal_561 |c_ULTIMATE.start_main_~tmpList~0#1.offset|)) (< (+ (select (select (let ((.cse8 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))) (store .cse7 .cse8 (store (select .cse7 .cse8) |v_ULTIMATE.start_main_#t~mem11#1.offset_10| v_ArrVal_561))) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5) (- 1)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5))))) (or .cse1 (forall ((v_ArrVal_559 (Array Int Int)) (v_ArrVal_563 (Array Int Int))) (= .cse2 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~tmpList~0#1.base| v_ArrVal_559))) (store .cse9 (select (select .cse9 |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5) v_ArrVal_563)) |c_ULTIMATE.start_main_~tree~0#1.base|) .cse5)))) (or .cse0 .cse6))))) is different from false [2023-02-18 20:51:38,545 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:38,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 862 treesize of output 928 [2023-02-18 20:51:38,564 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:38,564 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 732 treesize of output 533 [2023-02-18 20:51:38,602 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 20694 treesize of output 18600 [2023-02-18 20:51:38,774 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:38,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 30 case distinctions, treesize of input 45364 treesize of output 45345 [2023-02-18 20:51:38,841 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 45487 treesize of output 44735 [2023-02-18 20:51:38,931 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 44995 treesize of output 44011 [2023-02-18 20:51:38,996 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 44103 treesize of output 42071 [2023-02-18 20:51:39,059 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 44823 treesize of output 43159 [2023-02-18 20:51:39,157 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:39,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 43166 treesize of output 43320 [2023-02-18 20:51:39,304 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 43147 treesize of output 43003 [2023-02-18 20:51:39,408 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 43003 treesize of output 42971 [2023-02-18 20:51:40,039 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:51:40,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 127986 treesize of output 127164 [2023-02-18 20:51:40,257 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 133107 treesize of output 123803 [2023-02-18 20:51:40,416 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 123803 treesize of output 122971 [2023-02-18 20:51:40,582 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 122971 treesize of output 122459 [2023-02-18 20:51:40,764 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 122544 treesize of output 120232 [2023-02-18 20:51:40,932 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 120252 treesize of output 110532 [2023-02-18 20:51:41,113 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 122571 treesize of output 116955 [2023-02-18 20:51:41,360 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 117851 treesize of output 117351 [2023-02-18 20:51:41,520 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 117629 treesize of output 116865 [2023-02-18 20:51:41,701 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 116679 treesize of output 116551 [2023-02-18 20:51:41,886 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 116551 treesize of output 116543 [2023-02-18 20:51:42,104 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 116543 treesize of output 116539 [2023-02-18 20:51:42,350 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 116539 treesize of output 115451 [2023-02-18 20:51:42,665 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 115451 treesize of output 115435 [2023-02-18 20:51:42,854 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 115435 treesize of output 115427 [2023-02-18 20:51:43,077 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 115427 treesize of output 115315 [2023-02-18 20:51:43,296 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 115315 treesize of output 115187 [2023-02-18 20:51:43,476 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 115187 treesize of output 115123 [2023-02-18 20:51:43,697 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 115123 treesize of output 114483 [2023-02-18 20:51:43,899 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 114483 treesize of output 114355 [2023-02-18 20:51:44,106 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 114355 treesize of output 114351 [2023-02-18 20:51:44,321 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 114351 treesize of output 114343 [2023-02-18 20:51:44,678 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 115911 treesize of output 114975 [2023-02-18 20:51:45,075 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 115257 treesize of output 114281