./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:52:36,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:52:36,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:52:36,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:52:36,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:52:36,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:52:36,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:52:36,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:52:36,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:52:36,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:52:36,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:52:36,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:52:36,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:52:36,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:52:36,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:52:36,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:52:36,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:52:36,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:52:36,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:52:36,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:52:36,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:52:36,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:52:36,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:52:36,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:52:36,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:52:36,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:52:36,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:52:36,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:52:36,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:52:36,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:52:36,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:52:36,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:52:36,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:52:36,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:52:36,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:52:36,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:52:36,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:52:36,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:52:36,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:52:36,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:52:36,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:52:36,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:52:36,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:52:36,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:52:36,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:52:36,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:52:36,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:52:36,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:52:36,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:52:36,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:52:36,510 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:52:36,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:52:36,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:52:36,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:52:36,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:52:36,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:52:36,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:52:36,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:52:36,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:52:36,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:52:36,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:52:36,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:52:36,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:52:36,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:52:36,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:52:36,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:52:36,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:52:36,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:52:36,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:52:36,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:52:36,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:52:36,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:52:36,515 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:52:36,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:52:36,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:52:36,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb [2022-02-20 16:52:36,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:52:36,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:52:36,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:52:36,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:52:36,747 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:52:36,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2022-02-20 16:52:36,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc2fdc4b/ba355e77f7974a00b2e536447554c088/FLAG8192a023a [2022-02-20 16:52:37,229 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:52:37,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2022-02-20 16:52:37,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc2fdc4b/ba355e77f7974a00b2e536447554c088/FLAG8192a023a [2022-02-20 16:52:37,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc2fdc4b/ba355e77f7974a00b2e536447554c088 [2022-02-20 16:52:37,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:52:37,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:52:37,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:52:37,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:52:37,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:52:37,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:52:37" (1/1) ... [2022-02-20 16:52:37,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe15d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:37, skipping insertion in model container [2022-02-20 16:52:37,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:52:37" (1/1) ... [2022-02-20 16:52:37,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:52:37,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:52:37,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2022-02-20 16:52:37,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2022-02-20 16:52:37,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2022-02-20 16:52:37,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2022-02-20 16:52:37,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:52:37,927 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:52:37,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2022-02-20 16:52:37,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2022-02-20 16:52:37,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2022-02-20 16:52:37,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2022-02-20 16:52:37,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:52:38,014 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:52:38,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38 WrapperNode [2022-02-20 16:52:38,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:52:38,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:52:38,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:52:38,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:52:38,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,054 INFO L137 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 122 [2022-02-20 16:52:38,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:52:38,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:52:38,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:52:38,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:52:38,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:52:38,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:52:38,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:52:38,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:52:38,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (1/1) ... [2022-02-20 16:52:38,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:52:38,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:52:38,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:52:38,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:52:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:52:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:52:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:52:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:52:38,251 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:52:38,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:52:38,592 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:52:38,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:52:38,598 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-02-20 16:52:38,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:52:38 BoogieIcfgContainer [2022-02-20 16:52:38,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:52:38,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:52:38,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:52:38,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:52:38,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:52:37" (1/3) ... [2022-02-20 16:52:38,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c0c016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:52:38, skipping insertion in model container [2022-02-20 16:52:38,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:52:38" (2/3) ... [2022-02-20 16:52:38,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c0c016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:52:38, skipping insertion in model container [2022-02-20 16:52:38,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:52:38" (3/3) ... [2022-02-20 16:52:38,612 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-2.i [2022-02-20 16:52:38,616 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:52:38,616 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-02-20 16:52:38,653 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:52:38,659 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:52:38,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 16:52:38,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-02-20 16:52:38,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:38,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-02-20 16:52:38,684 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:38,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash 889968582, now seen corresponding path program 1 times [2022-02-20 16:52:38,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:38,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410002526] [2022-02-20 16:52:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:38,929 INFO L290 TraceCheckUtils]: 0: Hoare triple {36#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {36#true} is VALID [2022-02-20 16:52:38,930 INFO L290 TraceCheckUtils]: 1: Hoare triple {36#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {36#true} is VALID [2022-02-20 16:52:38,931 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#true} assume !true; {37#false} is VALID [2022-02-20 16:52:38,931 INFO L290 TraceCheckUtils]: 3: Hoare triple {37#false} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {37#false} is VALID [2022-02-20 16:52:38,931 INFO L290 TraceCheckUtils]: 4: Hoare triple {37#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {37#false} is VALID [2022-02-20 16:52:38,931 INFO L290 TraceCheckUtils]: 5: Hoare triple {37#false} assume !false; {37#false} is VALID [2022-02-20 16:52:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:38,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:38,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410002526] [2022-02-20 16:52:38,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410002526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:52:38,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:52:38,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:52:38,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668156363] [2022-02-20 16:52:38,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:52:38,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-02-20 16:52:38,945 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:38,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:38,960 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:38,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:52:38,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:38,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:52:38,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:52:38,985 INFO L87 Difference]: Start difference. First operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,047 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2022-02-20 16:52:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:52:39,047 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-02-20 16:52:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:39,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 98 transitions. [2022-02-20 16:52:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 98 transitions. [2022-02-20 16:52:39,057 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 98 transitions. [2022-02-20 16:52:39,140 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:39,147 INFO L225 Difference]: With dead ends: 61 [2022-02-20 16:52:39,147 INFO L226 Difference]: Without dead ends: 27 [2022-02-20 16:52:39,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:52:39,153 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:39,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:52:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-02-20 16:52:39,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-02-20 16:52:39,176 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:39,176 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,177 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,177 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,185 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-02-20 16:52:39,185 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-02-20 16:52:39,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:39,186 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:39,187 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 27 states. [2022-02-20 16:52:39,188 INFO L87 Difference]: Start difference. First operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 27 states. [2022-02-20 16:52:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,190 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-02-20 16:52:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-02-20 16:52:39,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:39,191 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:39,191 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:39,191 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-02-20 16:52:39,204 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 6 [2022-02-20 16:52:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:39,205 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-02-20 16:52:39,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-02-20 16:52:39,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 16:52:39,207 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:39,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:39,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:52:39,209 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1806853233, now seen corresponding path program 1 times [2022-02-20 16:52:39,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:39,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755610762] [2022-02-20 16:52:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:39,345 INFO L290 TraceCheckUtils]: 0: Hoare triple {192#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {192#true} is VALID [2022-02-20 16:52:39,347 INFO L290 TraceCheckUtils]: 1: Hoare triple {192#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {194#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:52:39,348 INFO L290 TraceCheckUtils]: 2: Hoare triple {194#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {194#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:52:39,349 INFO L290 TraceCheckUtils]: 3: Hoare triple {194#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {194#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:52:39,350 INFO L290 TraceCheckUtils]: 4: Hoare triple {194#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {195#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:52:39,350 INFO L290 TraceCheckUtils]: 5: Hoare triple {195#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {193#false} is VALID [2022-02-20 16:52:39,351 INFO L290 TraceCheckUtils]: 6: Hoare triple {193#false} assume !false; {193#false} is VALID [2022-02-20 16:52:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:39,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:39,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755610762] [2022-02-20 16:52:39,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755610762] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:52:39,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:52:39,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:52:39,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242278967] [2022-02-20 16:52:39,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:52:39,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 16:52:39,355 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:39,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,364 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:39,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:52:39,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:39,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:52:39,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:52:39,370 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,472 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-02-20 16:52:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:52:39,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 16:52:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-02-20 16:52:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-02-20 16:52:39,477 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 38 transitions. [2022-02-20 16:52:39,515 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:39,516 INFO L225 Difference]: With dead ends: 33 [2022-02-20 16:52:39,516 INFO L226 Difference]: Without dead ends: 31 [2022-02-20 16:52:39,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-20 16:52:39,517 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 37 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:39,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 29 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:52:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-02-20 16:52:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2022-02-20 16:52:39,521 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:39,521 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,522 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,522 INFO L87 Difference]: Start difference. First operand 31 states. Second operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,524 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-02-20 16:52:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-02-20 16:52:39,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:39,524 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:39,525 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 31 states. [2022-02-20 16:52:39,525 INFO L87 Difference]: Start difference. First operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 31 states. [2022-02-20 16:52:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,527 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-02-20 16:52:39,527 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-02-20 16:52:39,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:39,528 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:39,528 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:39,528 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-02-20 16:52:39,530 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 7 [2022-02-20 16:52:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:39,530 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-02-20 16:52:39,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-02-20 16:52:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:52:39,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:39,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:39,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:52:39,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:39,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash -856511048, now seen corresponding path program 1 times [2022-02-20 16:52:39,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:39,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526306444] [2022-02-20 16:52:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:39,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:39,676 INFO L290 TraceCheckUtils]: 0: Hoare triple {327#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {327#true} is VALID [2022-02-20 16:52:39,678 INFO L290 TraceCheckUtils]: 1: Hoare triple {327#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {329#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:39,679 INFO L290 TraceCheckUtils]: 2: Hoare triple {329#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {329#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:39,679 INFO L290 TraceCheckUtils]: 3: Hoare triple {329#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {329#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:39,680 INFO L290 TraceCheckUtils]: 4: Hoare triple {329#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {330#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:39,681 INFO L290 TraceCheckUtils]: 5: Hoare triple {330#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {330#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:39,682 INFO L290 TraceCheckUtils]: 6: Hoare triple {330#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {330#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:39,682 INFO L290 TraceCheckUtils]: 7: Hoare triple {330#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {331#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:39,683 INFO L290 TraceCheckUtils]: 8: Hoare triple {331#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {328#false} is VALID [2022-02-20 16:52:39,683 INFO L290 TraceCheckUtils]: 9: Hoare triple {328#false} assume !false; {328#false} is VALID [2022-02-20 16:52:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:39,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:39,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526306444] [2022-02-20 16:52:39,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526306444] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:52:39,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:52:39,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 16:52:39,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537978373] [2022-02-20 16:52:39,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:52:39,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:52:39,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:39,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,695 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:39,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 16:52:39,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:39,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 16:52:39,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-20 16:52:39,699 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,887 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-02-20 16:52:39,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 16:52:39,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:52:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2022-02-20 16:52:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2022-02-20 16:52:39,890 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2022-02-20 16:52:39,951 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:39,952 INFO L225 Difference]: With dead ends: 50 [2022-02-20 16:52:39,952 INFO L226 Difference]: Without dead ends: 48 [2022-02-20 16:52:39,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-20 16:52:39,954 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:39,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 67 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-20 16:52:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-02-20 16:52:39,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2022-02-20 16:52:39,958 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:39,958 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,958 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,958 INFO L87 Difference]: Start difference. First operand 48 states. Second operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,970 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-02-20 16:52:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-02-20 16:52:39,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:39,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:39,972 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 48 states. [2022-02-20 16:52:39,973 INFO L87 Difference]: Start difference. First operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 48 states. [2022-02-20 16:52:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:39,976 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-02-20 16:52:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-02-20 16:52:39,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:39,977 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:39,977 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:39,977 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-02-20 16:52:39,978 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 10 [2022-02-20 16:52:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:39,979 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-02-20 16:52:39,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-02-20 16:52:39,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:52:39,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:39,980 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:39,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 16:52:39,980 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1594081566, now seen corresponding path program 1 times [2022-02-20 16:52:39,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:39,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390958200] [2022-02-20 16:52:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:40,283 INFO L290 TraceCheckUtils]: 0: Hoare triple {527#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {527#true} is VALID [2022-02-20 16:52:40,286 INFO L290 TraceCheckUtils]: 1: Hoare triple {527#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {529#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:40,287 INFO L290 TraceCheckUtils]: 2: Hoare triple {529#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {529#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:40,288 INFO L290 TraceCheckUtils]: 3: Hoare triple {529#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {530#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:40,290 INFO L290 TraceCheckUtils]: 4: Hoare triple {530#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {531#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:40,291 INFO L290 TraceCheckUtils]: 5: Hoare triple {531#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {531#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:40,291 INFO L290 TraceCheckUtils]: 6: Hoare triple {531#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {531#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:40,292 INFO L290 TraceCheckUtils]: 7: Hoare triple {531#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {532#(and (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:52:40,293 INFO L290 TraceCheckUtils]: 8: Hoare triple {532#(and (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:40,293 INFO L290 TraceCheckUtils]: 9: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:40,294 INFO L290 TraceCheckUtils]: 10: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {534#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:40,294 INFO L290 TraceCheckUtils]: 11: Hoare triple {534#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {528#false} is VALID [2022-02-20 16:52:40,294 INFO L290 TraceCheckUtils]: 12: Hoare triple {528#false} assume !false; {528#false} is VALID [2022-02-20 16:52:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:40,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:40,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390958200] [2022-02-20 16:52:40,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390958200] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:52:40,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295411885] [2022-02-20 16:52:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:40,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:52:40,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:52:40,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 16:52:40,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-20 16:52:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:40,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-20 16:52:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:40,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:52:40,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-20 16:52:40,568 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:40,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-02-20 16:52:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:40,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-02-20 16:52:40,748 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:40,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-02-20 16:52:40,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-20 16:52:40,790 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-20 16:52:40,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-20 16:52:40,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:40,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:40,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-02-20 16:52:40,992 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-02-20 16:52:40,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-02-20 16:52:41,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-20 16:52:41,083 INFO L290 TraceCheckUtils]: 0: Hoare triple {527#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {527#true} is VALID [2022-02-20 16:52:41,085 INFO L290 TraceCheckUtils]: 1: Hoare triple {527#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {541#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:52:41,086 INFO L290 TraceCheckUtils]: 2: Hoare triple {541#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {541#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:52:41,088 INFO L290 TraceCheckUtils]: 3: Hoare triple {541#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {548#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)))} is VALID [2022-02-20 16:52:41,089 INFO L290 TraceCheckUtils]: 4: Hoare triple {548#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:41,090 INFO L290 TraceCheckUtils]: 5: Hoare triple {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:41,090 INFO L290 TraceCheckUtils]: 6: Hoare triple {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:41,091 INFO L290 TraceCheckUtils]: 7: Hoare triple {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:41,091 INFO L290 TraceCheckUtils]: 8: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:41,092 INFO L290 TraceCheckUtils]: 9: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:41,092 INFO L290 TraceCheckUtils]: 10: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {534#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:41,093 INFO L290 TraceCheckUtils]: 11: Hoare triple {534#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {528#false} is VALID [2022-02-20 16:52:41,093 INFO L290 TraceCheckUtils]: 12: Hoare triple {528#false} assume !false; {528#false} is VALID [2022-02-20 16:52:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:41,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:52:41,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:52:41,902 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-02-20 16:52:41,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 1 [2022-02-20 16:52:41,908 INFO L290 TraceCheckUtils]: 12: Hoare triple {528#false} assume !false; {528#false} is VALID [2022-02-20 16:52:41,909 INFO L290 TraceCheckUtils]: 11: Hoare triple {534#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {528#false} is VALID [2022-02-20 16:52:41,910 INFO L290 TraceCheckUtils]: 10: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {534#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:41,910 INFO L290 TraceCheckUtils]: 9: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:41,911 INFO L290 TraceCheckUtils]: 8: Hoare triple {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:41,911 INFO L290 TraceCheckUtils]: 7: Hoare triple {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {533#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:41,913 INFO L290 TraceCheckUtils]: 6: Hoare triple {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:41,914 INFO L290 TraceCheckUtils]: 5: Hoare triple {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:41,916 INFO L290 TraceCheckUtils]: 4: Hoare triple {601#(forall ((v_ArrVal_249 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_27| Int) (v_ArrVal_251 (Array Int Int))) (or (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_251) |v_ULTIMATE.start_main_~end~0#1.base_27| v_ArrVal_249) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_27|) 0))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {552#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:41,918 INFO L290 TraceCheckUtils]: 3: Hoare triple {605#(forall ((v_ArrVal_249 (Array Int Int)) (v_ArrVal_245 Int) (|v_ULTIMATE.start_main_~end~0#1.base_27| Int) (v_ArrVal_251 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_28| Int)) (or (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28| 1) |v_ULTIMATE.start_main_~end~0#1.base_27|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_245)) |v_ULTIMATE.start_main_~end~0#1.base_28| v_ArrVal_251) |v_ULTIMATE.start_main_~end~0#1.base_27| v_ArrVal_249) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28|) 0))))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {601#(forall ((v_ArrVal_249 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_27| Int) (v_ArrVal_251 (Array Int Int))) (or (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_251) |v_ULTIMATE.start_main_~end~0#1.base_27| v_ArrVal_249) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_27|) 0))))} is VALID [2022-02-20 16:52:41,921 WARN L290 TraceCheckUtils]: 2: Hoare triple {605#(forall ((v_ArrVal_249 (Array Int Int)) (v_ArrVal_245 Int) (|v_ULTIMATE.start_main_~end~0#1.base_27| Int) (v_ArrVal_251 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_28| Int)) (or (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28| 1) |v_ULTIMATE.start_main_~end~0#1.base_27|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_245)) |v_ULTIMATE.start_main_~end~0#1.base_28| v_ArrVal_251) |v_ULTIMATE.start_main_~end~0#1.base_27| v_ArrVal_249) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28|) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {605#(forall ((v_ArrVal_249 (Array Int Int)) (v_ArrVal_245 Int) (|v_ULTIMATE.start_main_~end~0#1.base_27| Int) (v_ArrVal_251 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_28| Int)) (or (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28| 1) |v_ULTIMATE.start_main_~end~0#1.base_27|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_245)) |v_ULTIMATE.start_main_~end~0#1.base_28| v_ArrVal_251) |v_ULTIMATE.start_main_~end~0#1.base_27| v_ArrVal_249) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28|) 0))))} is UNKNOWN [2022-02-20 16:52:41,925 INFO L290 TraceCheckUtils]: 1: Hoare triple {527#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {605#(forall ((v_ArrVal_249 (Array Int Int)) (v_ArrVal_245 Int) (|v_ULTIMATE.start_main_~end~0#1.base_27| Int) (v_ArrVal_251 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_28| Int)) (or (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28| 1) |v_ULTIMATE.start_main_~end~0#1.base_27|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_245)) |v_ULTIMATE.start_main_~end~0#1.base_28| v_ArrVal_251) |v_ULTIMATE.start_main_~end~0#1.base_27| v_ArrVal_249) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_28|) 0))))} is VALID [2022-02-20 16:52:41,925 INFO L290 TraceCheckUtils]: 0: Hoare triple {527#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {527#true} is VALID [2022-02-20 16:52:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:41,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295411885] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 16:52:41,926 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 16:52:41,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2022-02-20 16:52:41,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693369678] [2022-02-20 16:52:41,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 16:52:41,928 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-02-20 16:52:41,929 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:41,930 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:41,979 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 24 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:41,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-20 16:52:41,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-20 16:52:41,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-02-20 16:52:41,980 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:42,700 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2022-02-20 16:52:42,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-20 16:52:42,701 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-02-20 16:52:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 105 transitions. [2022-02-20 16:52:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 105 transitions. [2022-02-20 16:52:42,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 105 transitions. [2022-02-20 16:52:42,804 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 105 edges. 105 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:42,806 INFO L225 Difference]: With dead ends: 93 [2022-02-20 16:52:42,806 INFO L226 Difference]: Without dead ends: 91 [2022-02-20 16:52:42,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-02-20 16:52:42,808 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 109 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:42,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 138 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 128 Invalid, 0 Unknown, 60 Unchecked, 0.2s Time] [2022-02-20 16:52:42,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-02-20 16:52:42,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 38. [2022-02-20 16:52:42,813 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:42,813 INFO L82 GeneralOperation]: Start isEquivalent. First operand 91 states. Second operand has 38 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,813 INFO L74 IsIncluded]: Start isIncluded. First operand 91 states. Second operand has 38 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,814 INFO L87 Difference]: Start difference. First operand 91 states. Second operand has 38 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:42,819 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2022-02-20 16:52:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2022-02-20 16:52:42,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:42,822 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:42,822 INFO L74 IsIncluded]: Start isIncluded. First operand has 38 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 37 states have internal predecessors, (46), 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 91 states. [2022-02-20 16:52:42,822 INFO L87 Difference]: Start difference. First operand has 38 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 37 states have internal predecessors, (46), 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 91 states. [2022-02-20 16:52:42,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:42,828 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2022-02-20 16:52:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2022-02-20 16:52:42,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:42,833 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:42,833 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:42,833 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:42,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2022-02-20 16:52:42,834 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 13 [2022-02-20 16:52:42,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:42,835 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-02-20 16:52:42,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2022-02-20 16:52:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-20 16:52:42,836 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:42,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:42,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:52:43,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:52:43,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:43,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:43,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1689639521, now seen corresponding path program 1 times [2022-02-20 16:52:43,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:43,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442627246] [2022-02-20 16:52:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:43,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:43,149 INFO L290 TraceCheckUtils]: 0: Hoare triple {965#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {965#true} is VALID [2022-02-20 16:52:43,150 INFO L290 TraceCheckUtils]: 1: Hoare triple {965#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {965#true} is VALID [2022-02-20 16:52:43,150 INFO L290 TraceCheckUtils]: 2: Hoare triple {965#true} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {965#true} is VALID [2022-02-20 16:52:43,150 INFO L290 TraceCheckUtils]: 3: Hoare triple {965#true} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {965#true} is VALID [2022-02-20 16:52:43,150 INFO L290 TraceCheckUtils]: 4: Hoare triple {965#true} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {965#true} is VALID [2022-02-20 16:52:43,151 INFO L290 TraceCheckUtils]: 5: Hoare triple {965#true} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {965#true} is VALID [2022-02-20 16:52:43,151 INFO L290 TraceCheckUtils]: 6: Hoare triple {965#true} goto; {965#true} is VALID [2022-02-20 16:52:43,151 INFO L290 TraceCheckUtils]: 7: Hoare triple {965#true} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {967#(= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:43,152 INFO L290 TraceCheckUtils]: 8: Hoare triple {967#(= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {968#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:43,152 INFO L290 TraceCheckUtils]: 9: Hoare triple {968#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {968#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:43,153 INFO L290 TraceCheckUtils]: 10: Hoare triple {968#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {969#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem10#1|)} is VALID [2022-02-20 16:52:43,154 INFO L290 TraceCheckUtils]: 11: Hoare triple {969#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem10#1|)} assume ~unnamed1~0~RED == main_#t~mem10#1;havoc main_#t~mem10#1;call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset; {966#false} is VALID [2022-02-20 16:52:43,154 INFO L290 TraceCheckUtils]: 12: Hoare triple {966#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {966#false} is VALID [2022-02-20 16:52:43,154 INFO L290 TraceCheckUtils]: 13: Hoare triple {966#false} assume !false; {966#false} is VALID [2022-02-20 16:52:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:43,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:43,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442627246] [2022-02-20 16:52:43,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442627246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:52:43,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:52:43,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 16:52:43,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135868397] [2022-02-20 16:52:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:52:43,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-02-20 16:52:43,156 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:43,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,167 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:43,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 16:52:43,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:43,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 16:52:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-20 16:52:43,168 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:43,311 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2022-02-20 16:52:43,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-20 16:52:43,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-02-20 16:52:43,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:43,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2022-02-20 16:52:43,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2022-02-20 16:52:43,314 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 45 transitions. [2022-02-20 16:52:43,350 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:43,351 INFO L225 Difference]: With dead ends: 53 [2022-02-20 16:52:43,351 INFO L226 Difference]: Without dead ends: 41 [2022-02-20 16:52:43,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-20 16:52:43,352 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:43,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 62 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:52:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-20 16:52:43,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-02-20 16:52:43,356 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:43,357 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand has 40 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,357 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand has 40 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,357 INFO L87 Difference]: Start difference. First operand 41 states. Second operand has 40 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:43,358 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2022-02-20 16:52:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-02-20 16:52:43,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:43,359 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:43,359 INFO L74 IsIncluded]: Start isIncluded. First operand has 40 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 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 41 states. [2022-02-20 16:52:43,359 INFO L87 Difference]: Start difference. First operand has 40 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 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 41 states. [2022-02-20 16:52:43,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:43,360 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2022-02-20 16:52:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-02-20 16:52:43,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:43,361 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:43,361 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:43,361 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2022-02-20 16:52:43,362 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 14 [2022-02-20 16:52:43,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:43,363 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2022-02-20 16:52:43,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-02-20 16:52:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-20 16:52:43,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:43,364 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:43,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-20 16:52:43,364 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:43,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1344547832, now seen corresponding path program 2 times [2022-02-20 16:52:43,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:43,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562340276] [2022-02-20 16:52:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:43,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:43,558 INFO L290 TraceCheckUtils]: 0: Hoare triple {1164#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {1164#true} is VALID [2022-02-20 16:52:43,560 INFO L290 TraceCheckUtils]: 1: Hoare triple {1164#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1166#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:43,561 INFO L290 TraceCheckUtils]: 2: Hoare triple {1166#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1166#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:43,563 INFO L290 TraceCheckUtils]: 3: Hoare triple {1166#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {1167#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:43,565 INFO L290 TraceCheckUtils]: 4: Hoare triple {1167#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1167#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:43,565 INFO L290 TraceCheckUtils]: 5: Hoare triple {1167#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1167#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:43,567 INFO L290 TraceCheckUtils]: 6: Hoare triple {1167#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {1168#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:43,568 INFO L290 TraceCheckUtils]: 7: Hoare triple {1168#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:43,569 INFO L290 TraceCheckUtils]: 8: Hoare triple {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:43,569 INFO L290 TraceCheckUtils]: 9: Hoare triple {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:43,570 INFO L290 TraceCheckUtils]: 10: Hoare triple {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:43,570 INFO L290 TraceCheckUtils]: 11: Hoare triple {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:43,571 INFO L290 TraceCheckUtils]: 12: Hoare triple {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:43,571 INFO L290 TraceCheckUtils]: 13: Hoare triple {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1171#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:43,572 INFO L290 TraceCheckUtils]: 14: Hoare triple {1171#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {1165#false} is VALID [2022-02-20 16:52:43,572 INFO L290 TraceCheckUtils]: 15: Hoare triple {1165#false} assume !false; {1165#false} is VALID [2022-02-20 16:52:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:43,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:43,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562340276] [2022-02-20 16:52:43,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562340276] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:52:43,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35430988] [2022-02-20 16:52:43,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 16:52:43,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:52:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:52:43,575 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) [2022-02-20 16:52:43,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 16:52:43,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 16:52:43,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 16:52:43,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-20 16:52:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:43,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:52:43,770 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:43,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-02-20 16:52:43,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-20 16:52:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:43,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-02-20 16:52:43,905 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:43,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-02-20 16:52:43,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-20 16:52:43,933 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-20 16:52:43,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-20 16:52:44,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:44,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-02-20 16:52:44,129 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-02-20 16:52:44,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-02-20 16:52:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:44,463 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:44,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2022-02-20 16:52:44,534 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-02-20 16:52:44,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-02-20 16:52:44,746 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-02-20 16:52:44,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2022-02-20 16:52:44,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-02-20 16:52:44,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-20 16:52:45,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-20 16:52:45,030 INFO L290 TraceCheckUtils]: 0: Hoare triple {1164#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {1164#true} is VALID [2022-02-20 16:52:45,032 INFO L290 TraceCheckUtils]: 1: Hoare triple {1164#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1178#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,032 INFO L290 TraceCheckUtils]: 2: Hoare triple {1178#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1178#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,034 INFO L290 TraceCheckUtils]: 3: Hoare triple {1178#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {1185#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,036 INFO L290 TraceCheckUtils]: 4: Hoare triple {1185#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1189#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_31| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_31|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,037 INFO L290 TraceCheckUtils]: 5: Hoare triple {1189#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_31| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_31|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1189#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_31| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_31|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,038 INFO L290 TraceCheckUtils]: 6: Hoare triple {1189#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_31| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_31|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_31|)))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {1168#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,040 INFO L290 TraceCheckUtils]: 7: Hoare triple {1168#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1199#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,041 INFO L290 TraceCheckUtils]: 8: Hoare triple {1199#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1199#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,041 INFO L290 TraceCheckUtils]: 9: Hoare triple {1199#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1199#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:45,042 INFO L290 TraceCheckUtils]: 10: Hoare triple {1199#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1209#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (<= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~end~0#1.offset|))} is VALID [2022-02-20 16:52:45,043 INFO L290 TraceCheckUtils]: 11: Hoare triple {1209#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (<= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~end~0#1.offset|))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1209#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (<= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~end~0#1.offset|))} is VALID [2022-02-20 16:52:45,043 INFO L290 TraceCheckUtils]: 12: Hoare triple {1209#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (<= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~end~0#1.offset|))} goto; {1209#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (<= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~end~0#1.offset|))} is VALID [2022-02-20 16:52:45,044 INFO L290 TraceCheckUtils]: 13: Hoare triple {1209#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (<= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~end~0#1.offset|))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1171#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:45,046 INFO L290 TraceCheckUtils]: 14: Hoare triple {1171#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {1165#false} is VALID [2022-02-20 16:52:45,047 INFO L290 TraceCheckUtils]: 15: Hoare triple {1165#false} assume !false; {1165#false} is VALID [2022-02-20 16:52:45,047 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:45,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:52:45,108 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:52:45,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-02-20 16:52:45,130 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (= ~unnamed1~0~BLACK (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))))) is different from false [2022-02-20 16:52:45,256 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))))) is different from false [2022-02-20 16:52:45,658 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_531 (Array Int Int))) (or (= (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_37|) 0)) (not (= (select (store |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))))) is different from false [2022-02-20 16:52:46,428 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (|v_ULTIMATE.start_main_~end~0#1.base_38| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_526 Int) (v_ArrVal_531 (Array Int Int))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1))) (or (not (= (select (store .cse0 |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_526)) |v_ULTIMATE.start_main_~end~0#1.base_38| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select .cse0 |v_ULTIMATE.start_main_~end~0#1.base_37|) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_38|) 0))))) is different from false [2022-02-20 16:52:47,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:52:47,817 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-20 16:52:47,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 1 [2022-02-20 16:52:47,819 INFO L290 TraceCheckUtils]: 15: Hoare triple {1165#false} assume !false; {1165#false} is VALID [2022-02-20 16:52:47,819 INFO L290 TraceCheckUtils]: 14: Hoare triple {1171#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {1165#false} is VALID [2022-02-20 16:52:47,820 INFO L290 TraceCheckUtils]: 13: Hoare triple {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1171#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:47,820 INFO L290 TraceCheckUtils]: 12: Hoare triple {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:47,821 INFO L290 TraceCheckUtils]: 11: Hoare triple {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:47,822 INFO L290 TraceCheckUtils]: 10: Hoare triple {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1170#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:47,823 INFO L290 TraceCheckUtils]: 9: Hoare triple {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:47,823 INFO L290 TraceCheckUtils]: 8: Hoare triple {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:52:47,832 WARN L290 TraceCheckUtils]: 7: Hoare triple {1249#(forall ((|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4)))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1169#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is UNKNOWN [2022-02-20 16:52:47,835 WARN L290 TraceCheckUtils]: 6: Hoare triple {1253#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK)))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {1249#(forall ((|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4)))))} is UNKNOWN [2022-02-20 16:52:47,838 WARN L290 TraceCheckUtils]: 5: Hoare triple {1253#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1253#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK)))} is UNKNOWN [2022-02-20 16:52:47,844 WARN L290 TraceCheckUtils]: 4: Hoare triple {1260#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_531 (Array Int Int))) (or (= ~unnamed1~0~BLACK (select (select (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_37|) 0))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1253#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (= (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK)))} is UNKNOWN [2022-02-20 16:52:47,861 WARN L290 TraceCheckUtils]: 3: Hoare triple {1264#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (|v_ULTIMATE.start_main_~end~0#1.base_38| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_526 Int) (v_ArrVal_531 (Array Int Int))) (or (= (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_526)) |v_ULTIMATE.start_main_~end~0#1.base_38| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38|) 0))))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {1260#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_531 (Array Int Int))) (or (= ~unnamed1~0~BLACK (select (select (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_37|) 0))))} is UNKNOWN [2022-02-20 16:52:47,863 WARN L290 TraceCheckUtils]: 2: Hoare triple {1264#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (|v_ULTIMATE.start_main_~end~0#1.base_38| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_526 Int) (v_ArrVal_531 (Array Int Int))) (or (= (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_526)) |v_ULTIMATE.start_main_~end~0#1.base_38| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38|) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1264#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (|v_ULTIMATE.start_main_~end~0#1.base_38| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_526 Int) (v_ArrVal_531 (Array Int Int))) (or (= (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_526)) |v_ULTIMATE.start_main_~end~0#1.base_38| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38|) 0))))} is UNKNOWN [2022-02-20 16:52:47,865 INFO L290 TraceCheckUtils]: 1: Hoare triple {1164#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1264#(forall ((v_ArrVal_535 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_35| Int) (|v_ULTIMATE.start_main_~end~0#1.base_36| Int) (|v_ULTIMATE.start_main_~end~0#1.base_37| Int) (|v_ULTIMATE.start_main_~end~0#1.base_38| Int) (v_ArrVal_530 Int) (v_ArrVal_539 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_526 Int) (v_ArrVal_531 (Array Int Int))) (or (= (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_526)) |v_ULTIMATE.start_main_~end~0#1.base_38| v_ArrVal_531) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_535) |v_ULTIMATE.start_main_~end~0#1.base_36| v_ArrVal_539) |v_ULTIMATE.start_main_~end~0#1.base_35| v_arrayElimArr_4) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37| v_ArrVal_530) |v_ULTIMATE.start_main_~end~0#1.base_36|) 0)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38| 1) |v_ULTIMATE.start_main_~end~0#1.base_37|) 0)) (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_4 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_38|) 0))))} is VALID [2022-02-20 16:52:47,866 INFO L290 TraceCheckUtils]: 0: Hoare triple {1164#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {1164#true} is VALID [2022-02-20 16:52:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2022-02-20 16:52:47,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35430988] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 16:52:47,866 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 16:52:47,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 17 [2022-02-20 16:52:47,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894181206] [2022-02-20 16:52:47,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 16:52:47,867 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-02-20 16:52:47,867 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:47,868 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:47,939 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 30 inductive. 0 not inductive. 6 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:47,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-20 16:52:47,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-20 16:52:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=117, Unknown=4, NotChecked=100, Total=272 [2022-02-20 16:52:47,940 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:48,680 INFO L93 Difference]: Finished difference Result 117 states and 141 transitions. [2022-02-20 16:52:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-20 16:52:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-02-20 16:52:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 101 transitions. [2022-02-20 16:52:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 101 transitions. [2022-02-20 16:52:48,684 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 101 transitions. [2022-02-20 16:52:48,777 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:48,782 INFO L225 Difference]: With dead ends: 117 [2022-02-20 16:52:48,782 INFO L226 Difference]: Without dead ends: 115 [2022-02-20 16:52:48,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=341, Unknown=4, NotChecked=172, Total=650 [2022-02-20 16:52:48,785 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 79 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:48,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 199 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 119 Invalid, 0 Unknown, 191 Unchecked, 0.2s Time] [2022-02-20 16:52:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-02-20 16:52:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 46. [2022-02-20 16:52:48,807 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:48,808 INFO L82 GeneralOperation]: Start isEquivalent. First operand 115 states. Second operand has 46 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,808 INFO L74 IsIncluded]: Start isIncluded. First operand 115 states. Second operand has 46 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,808 INFO L87 Difference]: Start difference. First operand 115 states. Second operand has 46 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:48,811 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2022-02-20 16:52:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2022-02-20 16:52:48,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:48,812 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:48,812 INFO L74 IsIncluded]: Start isIncluded. First operand has 46 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 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 115 states. [2022-02-20 16:52:48,812 INFO L87 Difference]: Start difference. First operand has 46 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 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 115 states. [2022-02-20 16:52:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:48,816 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2022-02-20 16:52:48,816 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2022-02-20 16:52:48,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:48,817 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:48,817 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:48,817 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-02-20 16:52:48,819 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 16 [2022-02-20 16:52:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:48,819 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-02-20 16:52:48,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-02-20 16:52:48,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-20 16:52:48,820 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:48,820 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:48,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 16:52:49,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-20 16:52:49,034 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2084817261, now seen corresponding path program 1 times [2022-02-20 16:52:49,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:49,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103363718] [2022-02-20 16:52:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:49,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:49,137 INFO L290 TraceCheckUtils]: 0: Hoare triple {1719#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {1719#true} is VALID [2022-02-20 16:52:49,140 INFO L290 TraceCheckUtils]: 1: Hoare triple {1719#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1721#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))} is VALID [2022-02-20 16:52:49,140 INFO L290 TraceCheckUtils]: 2: Hoare triple {1721#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1721#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))} is VALID [2022-02-20 16:52:49,142 INFO L290 TraceCheckUtils]: 3: Hoare triple {1721#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1721#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))} is VALID [2022-02-20 16:52:49,142 INFO L290 TraceCheckUtils]: 4: Hoare triple {1721#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,143 INFO L290 TraceCheckUtils]: 5: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,143 INFO L290 TraceCheckUtils]: 6: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,144 INFO L290 TraceCheckUtils]: 7: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,145 INFO L290 TraceCheckUtils]: 8: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,145 INFO L290 TraceCheckUtils]: 9: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,146 INFO L290 TraceCheckUtils]: 10: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,146 INFO L290 TraceCheckUtils]: 11: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !(~unnamed1~0~RED == main_#t~mem10#1);havoc main_#t~mem10#1; {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:49,147 INFO L290 TraceCheckUtils]: 12: Hoare triple {1722#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset; {1723#(and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:52:49,148 INFO L290 TraceCheckUtils]: 13: Hoare triple {1723#(and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1720#false} is VALID [2022-02-20 16:52:49,148 INFO L290 TraceCheckUtils]: 14: Hoare triple {1720#false} assume ~unnamed1~0~RED == main_#t~mem10#1;havoc main_#t~mem10#1;call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset; {1720#false} is VALID [2022-02-20 16:52:49,148 INFO L290 TraceCheckUtils]: 15: Hoare triple {1720#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1720#false} is VALID [2022-02-20 16:52:49,148 INFO L290 TraceCheckUtils]: 16: Hoare triple {1720#false} assume !false; {1720#false} is VALID [2022-02-20 16:52:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:49,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:49,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103363718] [2022-02-20 16:52:49,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103363718] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:52:49,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028477504] [2022-02-20 16:52:49,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:49,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:52:49,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:52:49,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 16:52:49,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 16:52:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:49,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-20 16:52:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:49,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:52:49,292 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-02-20 16:52:49,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 84 [2022-02-20 16:52:49,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-02-20 16:52:49,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-02-20 16:52:49,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 53 treesize of output 24 [2022-02-20 16:52:49,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-20 16:52:49,529 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-02-20 16:52:49,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 84 [2022-02-20 16:52:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-02-20 16:52:49,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-02-20 16:52:49,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 53 treesize of output 24 [2022-02-20 16:52:49,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:49,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-20 16:52:50,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-20 16:52:50,293 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:52:50,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 89 [2022-02-20 16:52:50,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-20 16:52:50,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 16:52:50,347 INFO L290 TraceCheckUtils]: 0: Hoare triple {1719#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {1719#true} is VALID [2022-02-20 16:52:50,349 INFO L290 TraceCheckUtils]: 1: Hoare triple {1719#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1730#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= v_DerPreprocessor_3 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~list~0#1.offset|)) (= (select v_DerPreprocessor_2 (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_1))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} is VALID [2022-02-20 16:52:50,352 INFO L290 TraceCheckUtils]: 2: Hoare triple {1730#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= v_DerPreprocessor_3 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~list~0#1.offset|)) (= (select v_DerPreprocessor_2 (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_1))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1730#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= v_DerPreprocessor_3 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~list~0#1.offset|)) (= (select v_DerPreprocessor_2 (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_1))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} is VALID [2022-02-20 16:52:50,354 WARN L290 TraceCheckUtils]: 3: Hoare triple {1730#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= v_DerPreprocessor_3 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~list~0#1.offset|)) (= (select v_DerPreprocessor_2 (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_1))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1730#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= v_DerPreprocessor_3 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~list~0#1.offset|)) (= (select v_DerPreprocessor_2 (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_1))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} is UNKNOWN [2022-02-20 16:52:50,357 WARN L290 TraceCheckUtils]: 4: Hoare triple {1730#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= v_DerPreprocessor_3 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~list~0#1.offset|)) (= (select v_DerPreprocessor_2 (+ |ULTIMATE.start_main_~list~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~list~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_1))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is UNKNOWN [2022-02-20 16:52:50,358 INFO L290 TraceCheckUtils]: 5: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:52:50,360 WARN L290 TraceCheckUtils]: 6: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} goto; {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is UNKNOWN [2022-02-20 16:52:50,362 WARN L290 TraceCheckUtils]: 7: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is UNKNOWN [2022-02-20 16:52:50,365 WARN L290 TraceCheckUtils]: 8: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !!(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is UNKNOWN [2022-02-20 16:52:50,367 WARN L290 TraceCheckUtils]: 9: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} goto; {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is UNKNOWN [2022-02-20 16:52:50,368 INFO L290 TraceCheckUtils]: 10: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:52:50,371 WARN L290 TraceCheckUtils]: 11: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !(~unnamed1~0~RED == main_#t~mem10#1);havoc main_#t~mem10#1; {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is UNKNOWN [2022-02-20 16:52:50,371 INFO L290 TraceCheckUtils]: 12: Hoare triple {1740#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (or (and (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (and (= (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|) v_DerPreprocessor_3) (= (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base|) (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_3) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_4) |ULTIMATE.start_main_~null~0#1.base|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (select v_DerPreprocessor_2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= v_DerPreprocessor_1 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base| v_DerPreprocessor_1) |ULTIMATE.start_main_~end~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_main_~null~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.base| (select v_DerPreprocessor_2 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset; {1723#(and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:52:50,372 INFO L290 TraceCheckUtils]: 13: Hoare triple {1723#(and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1720#false} is VALID [2022-02-20 16:52:50,372 INFO L290 TraceCheckUtils]: 14: Hoare triple {1720#false} assume ~unnamed1~0~RED == main_#t~mem10#1;havoc main_#t~mem10#1;call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset; {1720#false} is VALID [2022-02-20 16:52:50,372 INFO L290 TraceCheckUtils]: 15: Hoare triple {1720#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1720#false} is VALID [2022-02-20 16:52:50,373 INFO L290 TraceCheckUtils]: 16: Hoare triple {1720#false} assume !false; {1720#false} is VALID [2022-02-20 16:52:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:50,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:52:50,553 INFO L290 TraceCheckUtils]: 16: Hoare triple {1720#false} assume !false; {1720#false} is VALID [2022-02-20 16:52:50,553 INFO L290 TraceCheckUtils]: 15: Hoare triple {1720#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1720#false} is VALID [2022-02-20 16:52:50,553 INFO L290 TraceCheckUtils]: 14: Hoare triple {1720#false} assume ~unnamed1~0~RED == main_#t~mem10#1;havoc main_#t~mem10#1;call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset; {1720#false} is VALID [2022-02-20 16:52:50,554 INFO L290 TraceCheckUtils]: 13: Hoare triple {1786#(and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1720#false} is VALID [2022-02-20 16:52:50,554 INFO L290 TraceCheckUtils]: 12: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset; {1786#(and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|))} is VALID [2022-02-20 16:52:50,555 INFO L290 TraceCheckUtils]: 11: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !(~unnamed1~0~RED == main_#t~mem10#1);havoc main_#t~mem10#1; {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,555 INFO L290 TraceCheckUtils]: 10: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,556 INFO L290 TraceCheckUtils]: 9: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,556 INFO L290 TraceCheckUtils]: 8: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,557 INFO L290 TraceCheckUtils]: 7: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,557 INFO L290 TraceCheckUtils]: 6: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,558 INFO L290 TraceCheckUtils]: 5: Hoare triple {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,558 INFO L290 TraceCheckUtils]: 4: Hoare triple {1815#(and (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1790#(and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:50,559 INFO L290 TraceCheckUtils]: 3: Hoare triple {1815#(and (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1815#(and (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} is VALID [2022-02-20 16:52:50,559 INFO L290 TraceCheckUtils]: 2: Hoare triple {1815#(and (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1815#(and (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} is VALID [2022-02-20 16:52:50,561 INFO L290 TraceCheckUtils]: 1: Hoare triple {1719#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {1815#(and (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))} is VALID [2022-02-20 16:52:50,561 INFO L290 TraceCheckUtils]: 0: Hoare triple {1719#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {1719#true} is VALID [2022-02-20 16:52:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:50,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028477504] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 16:52:50,562 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 16:52:50,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-20 16:52:50,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256319680] [2022-02-20 16:52:50,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 16:52:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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 [2022-02-20 16:52:50,566 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:52:50,566 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,616 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 34 inductive. 0 not inductive. 8 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:50,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-20 16:52:50,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:52:50,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-20 16:52:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-20 16:52:50,618 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:50,847 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2022-02-20 16:52:50,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-20 16:52:50,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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 [2022-02-20 16:52:50,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:52:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 58 transitions. [2022-02-20 16:52:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 58 transitions. [2022-02-20 16:52:50,849 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 58 transitions. [2022-02-20 16:52:50,904 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 52 inductive. 0 not inductive. 6 times theorem prover too weak to decide inductivity. [2022-02-20 16:52:50,905 INFO L225 Difference]: With dead ends: 72 [2022-02-20 16:52:50,905 INFO L226 Difference]: Without dead ends: 50 [2022-02-20 16:52:50,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-02-20 16:52:50,906 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:52:50,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2022-02-20 16:52:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-20 16:52:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-02-20 16:52:50,923 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:52:50,923 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand has 46 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 45 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,923 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand has 46 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 45 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,923 INFO L87 Difference]: Start difference. First operand 50 states. Second operand has 46 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 45 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:50,925 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-02-20 16:52:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2022-02-20 16:52:50,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:50,925 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:50,926 INFO L74 IsIncluded]: Start isIncluded. First operand has 46 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 45 states have internal predecessors, (57), 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 50 states. [2022-02-20 16:52:50,926 INFO L87 Difference]: Start difference. First operand has 46 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 45 states have internal predecessors, (57), 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 50 states. [2022-02-20 16:52:50,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:52:50,927 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-02-20 16:52:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2022-02-20 16:52:50,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:52:50,928 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:52:50,928 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:52:50,928 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:52:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 45 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2022-02-20 16:52:50,929 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 17 [2022-02-20 16:52:50,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:52:50,930 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2022-02-20 16:52:50,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:52:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2022-02-20 16:52:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-20 16:52:50,930 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:52:50,931 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:52:50,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 16:52:51,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:52:51,154 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:52:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:52:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2073467614, now seen corresponding path program 3 times [2022-02-20 16:52:51,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:52:51,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015680140] [2022-02-20 16:52:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:52:51,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:52:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:51,671 INFO L290 TraceCheckUtils]: 0: Hoare triple {2068#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {2068#true} is VALID [2022-02-20 16:52:51,673 INFO L290 TraceCheckUtils]: 1: Hoare triple {2068#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2070#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,673 INFO L290 TraceCheckUtils]: 2: Hoare triple {2070#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2070#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,674 INFO L290 TraceCheckUtils]: 3: Hoare triple {2070#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,676 INFO L290 TraceCheckUtils]: 4: Hoare triple {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,676 INFO L290 TraceCheckUtils]: 5: Hoare triple {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,677 INFO L290 TraceCheckUtils]: 6: Hoare triple {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,678 INFO L290 TraceCheckUtils]: 7: Hoare triple {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,679 INFO L290 TraceCheckUtils]: 8: Hoare triple {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,680 INFO L290 TraceCheckUtils]: 9: Hoare triple {2071#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2072#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 0)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,681 INFO L290 TraceCheckUtils]: 10: Hoare triple {2072#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 0)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2073#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,682 INFO L290 TraceCheckUtils]: 11: Hoare triple {2073#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2073#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,683 INFO L290 TraceCheckUtils]: 12: Hoare triple {2073#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2073#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,684 INFO L290 TraceCheckUtils]: 13: Hoare triple {2073#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2074#(and (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:52:51,684 INFO L290 TraceCheckUtils]: 14: Hoare triple {2074#(and (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:51,684 INFO L290 TraceCheckUtils]: 15: Hoare triple {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:52:51,685 INFO L290 TraceCheckUtils]: 16: Hoare triple {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2076#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:51,685 INFO L290 TraceCheckUtils]: 17: Hoare triple {2076#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {2069#false} is VALID [2022-02-20 16:52:51,685 INFO L290 TraceCheckUtils]: 18: Hoare triple {2069#false} assume !false; {2069#false} is VALID [2022-02-20 16:52:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-20 16:52:51,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:52:51,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015680140] [2022-02-20 16:52:51,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015680140] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:52:51,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542551092] [2022-02-20 16:52:51,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 16:52:51,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:52:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:52:51,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 16:52:51,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 16:52:53,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-20 16:52:53,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 16:52:53,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 72 conjunts are in the unsatisfiable core [2022-02-20 16:52:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:52:53,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:52:53,406 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:53,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-02-20 16:52:53,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-20 16:52:53,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:53,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-02-20 16:52:53,534 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:52:53,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-02-20 16:52:53,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-20 16:52:53,555 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-20 16:52:53,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-20 16:52:53,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:53,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:53,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-02-20 16:52:53,723 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-02-20 16:52:53,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-02-20 16:52:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:54,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:54,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-02-20 16:52:54,181 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-02-20 16:52:54,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-02-20 16:52:55,072 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-02-20 16:52:55,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 36 [2022-02-20 16:52:55,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-20 16:52:55,284 INFO L356 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2022-02-20 16:52:55,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2022-02-20 16:52:55,431 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-20 16:52:56,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:56,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:52:56,806 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-02-20 16:52:56,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2022-02-20 16:52:57,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:57,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:52:57,016 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-02-20 16:52:57,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 28 [2022-02-20 16:52:57,211 INFO L356 Elim1Store]: treesize reduction 52, result has 28.8 percent of original size [2022-02-20 16:52:57,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 39 [2022-02-20 16:52:57,493 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-02-20 16:52:57,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2022-02-20 16:52:57,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-02-20 16:52:57,571 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-20 16:52:57,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-20 16:52:57,667 INFO L290 TraceCheckUtils]: 0: Hoare triple {2068#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {2068#true} is VALID [2022-02-20 16:52:57,668 INFO L290 TraceCheckUtils]: 1: Hoare triple {2068#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2083#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,669 INFO L290 TraceCheckUtils]: 2: Hoare triple {2083#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2083#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,670 INFO L290 TraceCheckUtils]: 3: Hoare triple {2083#(and (<= |ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2090#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,672 INFO L290 TraceCheckUtils]: 4: Hoare triple {2090#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2094#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,672 INFO L290 TraceCheckUtils]: 5: Hoare triple {2094#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2094#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,674 INFO L290 TraceCheckUtils]: 6: Hoare triple {2094#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2101#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int) (|v_ULTIMATE.start_main_~end~0#1.base_47| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_47|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_47| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,678 INFO L290 TraceCheckUtils]: 7: Hoare triple {2101#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int) (|v_ULTIMATE.start_main_~end~0#1.base_47| Int)) (and (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_47|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_47| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |ULTIMATE.start_main_~end~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2105#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int) (|v_ULTIMATE.start_main_~end~0#1.base_47| Int) (|v_ULTIMATE.start_main_~end~0#1.base_48| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_48|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_48|)) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_47|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_47| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,679 INFO L290 TraceCheckUtils]: 8: Hoare triple {2105#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int) (|v_ULTIMATE.start_main_~end~0#1.base_47| Int) (|v_ULTIMATE.start_main_~end~0#1.base_48| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_48|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_48|)) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_47|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_47| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2105#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int) (|v_ULTIMATE.start_main_~end~0#1.base_47| Int) (|v_ULTIMATE.start_main_~end~0#1.base_48| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_48|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_48|)) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_47|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_47| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,683 INFO L290 TraceCheckUtils]: 9: Hoare triple {2105#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_46| Int) (|v_ULTIMATE.start_main_~end~0#1.base_47| Int) (|v_ULTIMATE.start_main_~end~0#1.base_48| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_48|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_48|)) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_47|) 1) (not (= |ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_~end~0#1.base_47|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_48| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (not (= |v_ULTIMATE.start_main_~end~0#1.base_47| |v_ULTIMATE.start_main_~end~0#1.base_46|)) (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_46|) 1))) (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2112#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,684 INFO L290 TraceCheckUtils]: 10: Hoare triple {2112#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2116#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,685 INFO L290 TraceCheckUtils]: 11: Hoare triple {2116#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2116#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,685 INFO L290 TraceCheckUtils]: 12: Hoare triple {2116#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2116#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,686 INFO L290 TraceCheckUtils]: 13: Hoare triple {2116#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2126#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,686 INFO L290 TraceCheckUtils]: 14: Hoare triple {2126#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2126#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,687 INFO L290 TraceCheckUtils]: 15: Hoare triple {2126#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} goto; {2126#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:52:57,687 INFO L290 TraceCheckUtils]: 16: Hoare triple {2126#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2076#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:52:57,687 INFO L290 TraceCheckUtils]: 17: Hoare triple {2076#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {2069#false} is VALID [2022-02-20 16:52:57,687 INFO L290 TraceCheckUtils]: 18: Hoare triple {2069#false} assume !false; {2069#false} is VALID [2022-02-20 16:52:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:52:57,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:52:57,748 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:52:57,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-02-20 16:52:57,770 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (= ~unnamed1~0~BLACK (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)))) is different from false [2022-02-20 16:52:57,910 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_962 Int) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_962)) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))))) is different from false [2022-02-20 16:52:58,153 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:52:58,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 34 [2022-02-20 16:52:58,307 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK))) is different from false [2022-02-20 16:52:58,680 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select (store (store |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))))) is different from false [2022-02-20 16:52:59,556 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int) (v_ArrVal_950 (Array Int Int))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_56| 1))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_56|) 0)) (not (= (select .cse0 |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select (store (store .cse0 |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))))) is different from false [2022-02-20 16:53:01,060 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.base_57| Int) (v_arrayElimArr_13 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_947 Int) (v_ArrVal_950 (Array Int Int)) (v_ArrVal_952 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (let ((.cse1 (store |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1))) (let ((.cse0 (store .cse1 |v_ULTIMATE.start_main_~end~0#1.base_56| 1))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~end~0#1.base_57|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_947)) |v_ULTIMATE.start_main_~end~0#1.base_57| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store (store .cse0 |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select .cse0 |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (not (= (select .cse1 |v_ULTIMATE.start_main_~end~0#1.base_56|) 0)))))) is different from false [2022-02-20 16:53:03,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:53:03,200 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-20 16:53:03,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 1 [2022-02-20 16:53:03,202 INFO L290 TraceCheckUtils]: 18: Hoare triple {2069#false} assume !false; {2069#false} is VALID [2022-02-20 16:53:03,202 INFO L290 TraceCheckUtils]: 17: Hoare triple {2076#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {2069#false} is VALID [2022-02-20 16:53:03,204 INFO L290 TraceCheckUtils]: 16: Hoare triple {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2076#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem9#1|)} is VALID [2022-02-20 16:53:03,205 INFO L290 TraceCheckUtils]: 15: Hoare triple {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:53:03,205 INFO L290 TraceCheckUtils]: 14: Hoare triple {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:53:03,205 INFO L290 TraceCheckUtils]: 13: Hoare triple {2157#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2075#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:53:03,206 INFO L290 TraceCheckUtils]: 12: Hoare triple {2157#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2157#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:53:03,206 INFO L290 TraceCheckUtils]: 11: Hoare triple {2157#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2157#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is VALID [2022-02-20 16:53:03,215 WARN L290 TraceCheckUtils]: 10: Hoare triple {2167#(forall ((v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2157#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))} is UNKNOWN [2022-02-20 16:53:03,225 WARN L290 TraceCheckUtils]: 9: Hoare triple {2171#(forall ((v_ArrVal_962 Int) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_962)) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2167#(forall ((v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))))} is UNKNOWN [2022-02-20 16:53:03,226 WARN L290 TraceCheckUtils]: 8: Hoare triple {2171#(forall ((v_ArrVal_962 Int) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_962)) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2171#(forall ((v_ArrVal_962 Int) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_962)) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} is UNKNOWN [2022-02-20 16:53:03,235 WARN L290 TraceCheckUtils]: 7: Hoare triple {2178#(forall ((v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2171#(forall ((v_ArrVal_962 Int) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_962)) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} is UNKNOWN [2022-02-20 16:53:03,239 WARN L290 TraceCheckUtils]: 6: Hoare triple {2182#(forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2178#(forall ((v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4)))))} is UNKNOWN [2022-02-20 16:53:03,241 WARN L290 TraceCheckUtils]: 5: Hoare triple {2182#(forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2182#(forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} is UNKNOWN [2022-02-20 16:53:03,251 WARN L290 TraceCheckUtils]: 4: Hoare triple {2189#(forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int) (v_ArrVal_950 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= 0 (select (store (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_56|) 0))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2182#(forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0))))} is UNKNOWN [2022-02-20 16:53:03,259 WARN L290 TraceCheckUtils]: 3: Hoare triple {2193#(forall ((|v_ULTIMATE.start_main_~end~0#1.base_57| Int) (v_arrayElimArr_13 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_947 Int) (v_ArrVal_950 (Array Int Int)) (v_ArrVal_952 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_947)) |v_ULTIMATE.start_main_~end~0#1.base_57| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56|) 0)) (not (= (select (store (store (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57|) 0))))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2189#(forall ((v_ArrVal_952 (Array Int Int)) (v_arrayElimArr_13 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int) (v_ArrVal_950 (Array Int Int))) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= 0 (select (store (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|))) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_56|) 0))))} is UNKNOWN [2022-02-20 16:53:03,261 WARN L290 TraceCheckUtils]: 2: Hoare triple {2193#(forall ((|v_ULTIMATE.start_main_~end~0#1.base_57| Int) (v_arrayElimArr_13 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_947 Int) (v_ArrVal_950 (Array Int Int)) (v_ArrVal_952 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_947)) |v_ULTIMATE.start_main_~end~0#1.base_57| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56|) 0)) (not (= (select (store (store (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57|) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2193#(forall ((|v_ULTIMATE.start_main_~end~0#1.base_57| Int) (v_arrayElimArr_13 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_947 Int) (v_ArrVal_950 (Array Int Int)) (v_ArrVal_952 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_947)) |v_ULTIMATE.start_main_~end~0#1.base_57| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56|) 0)) (not (= (select (store (store (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57|) 0))))} is UNKNOWN [2022-02-20 16:53:03,263 INFO L290 TraceCheckUtils]: 1: Hoare triple {2068#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2193#(forall ((|v_ULTIMATE.start_main_~end~0#1.base_57| Int) (v_arrayElimArr_13 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_53| Int) (|v_ULTIMATE.start_main_~end~0#1.base_54| Int) (|v_ULTIMATE.start_main_~end~0#1.base_55| Int) (|v_ULTIMATE.start_main_~end~0#1.base_56| Int) (v_ArrVal_947 Int) (v_ArrVal_950 (Array Int Int)) (v_ArrVal_952 (Array Int Int)) (v_ArrVal_965 (Array Int Int)) (v_ArrVal_958 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.base_52| Int)) (or (not (= ~unnamed1~0~BLACK (select v_arrayElimArr_13 4))) (not (= (select (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55|) 0)) (= ~unnamed1~0~BLACK (select (select (store (store (store (store (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| (store (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_947)) |v_ULTIMATE.start_main_~end~0#1.base_57| v_ArrVal_950) |v_ULTIMATE.start_main_~end~0#1.base_56| v_ArrVal_952) |v_ULTIMATE.start_main_~end~0#1.base_55| v_ArrVal_958) |v_ULTIMATE.start_main_~end~0#1.base_54| v_arrayElimArr_13) |v_ULTIMATE.start_main_~end~0#1.base_53| v_ArrVal_965) |v_ULTIMATE.start_main_~end~0#1.base_52| v_arrayElimArr_12) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 4))) (not (= (select v_arrayElimArr_12 4) ~unnamed1~0~BLACK)) (not (= (select (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56|) 0)) (not (= (select (store (store (store (store |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57| 1) |v_ULTIMATE.start_main_~end~0#1.base_56| 1) |v_ULTIMATE.start_main_~end~0#1.base_55| 1) |v_ULTIMATE.start_main_~end~0#1.base_54| 1) |v_ULTIMATE.start_main_~end~0#1.base_53|) 0)) (not (= (select |#valid| |v_ULTIMATE.start_main_~end~0#1.base_57|) 0))))} is VALID [2022-02-20 16:53:03,264 INFO L290 TraceCheckUtils]: 0: Hoare triple {2068#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {2068#true} is VALID [2022-02-20 16:53:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-02-20 16:53:03,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542551092] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 16:53:03,264 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 16:53:03,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2022-02-20 16:53:03,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064523349] [2022-02-20 16:53:03,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 16:53:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 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 [2022-02-20 16:53:03,265 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:53:03,265 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:03,346 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 38 inductive. 0 not inductive. 9 times theorem prover too weak to decide inductivity. [2022-02-20 16:53:03,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-20 16:53:03,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:53:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-20 16:53:03,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=241, Unknown=6, NotChecked=222, Total=552 [2022-02-20 16:53:03,347 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:53:07,974 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2022-02-20 16:53:07,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-20 16:53:07,974 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 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 [2022-02-20 16:53:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:53:07,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 49 transitions. [2022-02-20 16:53:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 49 transitions. [2022-02-20 16:53:07,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 49 transitions. [2022-02-20 16:53:08,030 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:53:08,031 INFO L225 Difference]: With dead ends: 60 [2022-02-20 16:53:08,031 INFO L226 Difference]: Without dead ends: 58 [2022-02-20 16:53:08,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=199, Invalid=521, Unknown=6, NotChecked=330, Total=1056 [2022-02-20 16:53:08,033 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 31 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 16:53:08,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 143 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 45 Invalid, 0 Unknown, 152 Unchecked, 0.1s Time] [2022-02-20 16:53:08,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-02-20 16:53:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 27. [2022-02-20 16:53:08,042 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:53:08,043 INFO L82 GeneralOperation]: Start isEquivalent. First operand 58 states. Second operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:08,043 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:08,043 INFO L87 Difference]: Start difference. First operand 58 states. Second operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:08,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:53:08,045 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2022-02-20 16:53:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-02-20 16:53:08,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:53:08,045 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:53:08,045 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 58 states. [2022-02-20 16:53:08,046 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 58 states. [2022-02-20 16:53:08,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:53:08,047 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2022-02-20 16:53:08,047 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-02-20 16:53:08,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:53:08,047 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:53:08,048 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:53:08,048 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:53:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-02-20 16:53:08,049 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 19 [2022-02-20 16:53:08,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:53:08,049 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-02-20 16:53:08,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:53:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-02-20 16:53:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-20 16:53:08,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:53:08,050 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:53:08,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 16:53:08,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:53:08,263 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-20 16:53:08,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:53:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1088473273, now seen corresponding path program 1 times [2022-02-20 16:53:08,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:53:08,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522132336] [2022-02-20 16:53:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:53:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:53:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:53:08,566 INFO L290 TraceCheckUtils]: 0: Hoare triple {2444#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {2444#true} is VALID [2022-02-20 16:53:08,568 INFO L290 TraceCheckUtils]: 1: Hoare triple {2444#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2446#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (or (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))))} is VALID [2022-02-20 16:53:08,569 INFO L290 TraceCheckUtils]: 2: Hoare triple {2446#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (or (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2446#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (or (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))))} is VALID [2022-02-20 16:53:08,570 INFO L290 TraceCheckUtils]: 3: Hoare triple {2446#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (or (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2447#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (or (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (or (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0)) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))))} is VALID [2022-02-20 16:53:08,572 INFO L290 TraceCheckUtils]: 4: Hoare triple {2447#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (or (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (or (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0)) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2448#(and (or (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))) (or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))))} is VALID [2022-02-20 16:53:08,573 INFO L290 TraceCheckUtils]: 5: Hoare triple {2448#(and (or (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))) (or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2448#(and (or (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))) (or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))))} is VALID [2022-02-20 16:53:08,574 INFO L290 TraceCheckUtils]: 6: Hoare triple {2448#(and (or (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))) (or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2448#(and (or (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))) (or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))))} is VALID [2022-02-20 16:53:08,575 INFO L290 TraceCheckUtils]: 7: Hoare triple {2448#(and (or (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))) (or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0))))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,575 INFO L290 TraceCheckUtils]: 8: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,576 INFO L290 TraceCheckUtils]: 9: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} goto; {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,577 INFO L290 TraceCheckUtils]: 10: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,578 INFO L290 TraceCheckUtils]: 11: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,579 INFO L290 TraceCheckUtils]: 12: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} goto; {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,580 INFO L290 TraceCheckUtils]: 13: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,581 INFO L290 TraceCheckUtils]: 14: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !(~unnamed1~0~RED == main_#t~mem10#1);havoc main_#t~mem10#1; {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,582 INFO L290 TraceCheckUtils]: 15: Hoare triple {2449#(or (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset; {2450#(or (and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:53:08,583 INFO L290 TraceCheckUtils]: 16: Hoare triple {2450#(or (and (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2451#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:53:08,584 INFO L290 TraceCheckUtils]: 17: Hoare triple {2451#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume ~unnamed1~0~RED == main_#t~mem10#1;havoc main_#t~mem10#1;call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset; {2452#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:53:08,585 INFO L290 TraceCheckUtils]: 18: Hoare triple {2452#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2445#false} is VALID [2022-02-20 16:53:08,585 INFO L290 TraceCheckUtils]: 19: Hoare triple {2445#false} assume !false; {2445#false} is VALID [2022-02-20 16:53:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:53:08,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:53:08,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522132336] [2022-02-20 16:53:08,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522132336] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:53:08,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537715359] [2022-02-20 16:53:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:53:08,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:53:08,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:53:08,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 16:53:08,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 16:53:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:53:08,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 50 conjunts are in the unsatisfiable core [2022-02-20 16:53:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:53:08,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:53:08,746 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-20 16:53:08,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-02-20 16:53:08,816 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-02-20 16:53:08,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-02-20 16:53:08,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-02-20 16:53:08,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-02-20 16:53:08,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 14 treesize of output 14 [2022-02-20 16:53:08,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-02-20 16:53:08,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:53:08,931 INFO L356 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2022-02-20 16:53:08,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 54 [2022-02-20 16:53:08,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:53:08,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:53:08,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-02-20 16:53:08,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-02-20 16:53:08,982 INFO L356 Elim1Store]: treesize reduction 20, result has 67.2 percent of original size [2022-02-20 16:53:08,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 53 [2022-02-20 16:53:09,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-20 16:53:09,390 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-20 16:53:09,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 27 [2022-02-20 16:53:09,425 INFO L290 TraceCheckUtils]: 0: Hoare triple {2444#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2); {2444#true} is VALID [2022-02-20 16:53:09,427 INFO L290 TraceCheckUtils]: 1: Hoare triple {2444#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem5#1.base, main_#t~mem5#1.offset, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~mem8#1.base, main_#t~mem8#1.offset, main_#t~nondet3#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1.base, main_#t~mem11#1.offset, main_#t~mem12#1, main_#t~mem13#1.base, main_#t~mem13#1.offset, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1.base, main_#t~mem16#1.offset, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(8);main_~null~0#1.base, main_~null~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(8);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2459#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))} is VALID [2022-02-20 16:53:09,427 INFO L290 TraceCheckUtils]: 2: Hoare triple {2459#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2459#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))} is VALID [2022-02-20 16:53:09,431 INFO L290 TraceCheckUtils]: 3: Hoare triple {2459#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~mem5#1.base, main_#t~mem5#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem5#1.base, main_#t~mem5#1.offset;havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647; {2466#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))} is VALID [2022-02-20 16:53:09,432 INFO L290 TraceCheckUtils]: 4: Hoare triple {2466#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1))} assume !(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(8);call write~$Pointer$(main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~mem8#1.base, main_#t~mem8#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem8#1.base, main_#t~mem8#1.offset;havoc main_#t~mem8#1.base, main_#t~mem8#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2470#(and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:53:09,433 INFO L290 TraceCheckUtils]: 5: Hoare triple {2470#(and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2470#(and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:53:09,433 INFO L290 TraceCheckUtils]: 6: Hoare triple {2470#(and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2470#(and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:53:09,434 INFO L290 TraceCheckUtils]: 7: Hoare triple {2470#(and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,434 INFO L290 TraceCheckUtils]: 8: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,435 INFO L290 TraceCheckUtils]: 9: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} goto; {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,436 INFO L290 TraceCheckUtils]: 10: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} call main_#t~mem9#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,436 INFO L290 TraceCheckUtils]: 11: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} assume !!(~unnamed1~0~BLACK == main_#t~mem9#1);havoc main_#t~mem9#1; {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,437 INFO L290 TraceCheckUtils]: 12: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} goto; {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,437 INFO L290 TraceCheckUtils]: 13: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,438 INFO L290 TraceCheckUtils]: 14: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} assume !(~unnamed1~0~RED == main_#t~mem10#1);havoc main_#t~mem10#1; {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} is VALID [2022-02-20 16:53:09,439 INFO L290 TraceCheckUtils]: 15: Hoare triple {2480#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0))} call main_#t~mem13#1.base, main_#t~mem13#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem13#1.base, main_#t~mem13#1.offset;havoc main_#t~mem13#1.base, main_#t~mem13#1.offset; {2505#(and (exists ((|v_ULTIMATE.start_main_~end~0#1.base_61| Int)) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_61|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:53:09,440 INFO L290 TraceCheckUtils]: 16: Hoare triple {2505#(and (exists ((|v_ULTIMATE.start_main_~end~0#1.base_61| Int)) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_61|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem10#1 := read~int(main_~end~0#1.base, 4 + main_~end~0#1.offset, 4); {2505#(and (exists ((|v_ULTIMATE.start_main_~end~0#1.base_61| Int)) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_61|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} is VALID [2022-02-20 16:53:09,441 INFO L290 TraceCheckUtils]: 17: Hoare triple {2505#(and (exists ((|v_ULTIMATE.start_main_~end~0#1.base_61| Int)) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_61|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0)) 0))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_61|) 0))))) (= |ULTIMATE.start_main_~end~0#1.offset| 0))} assume ~unnamed1~0~RED == main_#t~mem10#1;havoc main_#t~mem10#1;call main_#t~mem11#1.base, main_#t~mem11#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem11#1.base, main_#t~mem11#1.offset;havoc main_#t~mem11#1.base, main_#t~mem11#1.offset; {2452#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:53:09,441 INFO L290 TraceCheckUtils]: 18: Hoare triple {2452#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2445#false} is VALID [2022-02-20 16:53:09,441 INFO L290 TraceCheckUtils]: 19: Hoare triple {2445#false} assume !false; {2445#false} is VALID [2022-02-20 16:53:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:53:09,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:53:09,548 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 41 [2022-02-20 16:53:09,557 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1128 (Array Int Int)) (v_arrayElimArr_17 (Array Int Int)) (v_ArrVal_1133 (Array Int Int)) (v_ArrVal_1132 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_17 |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= 0 (select |c_#valid| .cse0))) (not (= (select (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_17) .cse0 v_ArrVal_1133))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1128) .cse0 v_ArrVal_1132) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) |c_ULTIMATE.start_main_~null~0#1.base|))))) is different from false [2022-02-20 16:53:09,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 65 [2022-02-20 16:53:09,609 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 56 treesize of output 49 [2022-02-20 16:53:09,667 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1524 treesize of output 1125 [2022-02-20 16:53:09,755 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 1557 treesize of output 1528 [2022-02-20 16:53:09,836 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1546 treesize of output 1374 [2022-02-20 16:53:09,928 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:53:09,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1047 treesize of output 1023 [2022-02-20 16:53:10,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 411 treesize of output 373 [2022-02-20 16:53:10,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 357