./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.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/dll-rb-sentinel-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503e46fe74670dc8b1fd2e8b2c5a408fc01c83cb421ff9aefb8796417315d291 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:50:55,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:50:55,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:50:55,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:50:55,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:50:55,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:50:55,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:50:55,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:50:55,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:50:55,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:50:55,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:50:55,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:50:55,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:50:55,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:50:55,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:50:55,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:50:55,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:50:55,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:50:55,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:50:55,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:50:55,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:50:55,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:50:55,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:50:55,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:50:55,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:50:55,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:50:55,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:50:55,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:50:55,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:50:55,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:50:55,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:50:55,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:50:55,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:50:55,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:50:55,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:50:55,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:50:55,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:50:55,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:50:55,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:50:55,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:50:55,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:50:55,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:50:55,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:50:55,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:50:55,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:50:55,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:50:55,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:50:55,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:50:55,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:50:55,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:50:55,624 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:50:55,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:50:55,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:50:55,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:50:55,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:50:55,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:50:55,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503e46fe74670dc8b1fd2e8b2c5a408fc01c83cb421ff9aefb8796417315d291 [2022-02-20 16:50:55,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:50:55,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:50:55,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:50:55,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:50:55,870 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:50:55,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2022-02-20 16:50:55,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e80558011/14b8b110367b422baa9658f1c1d0daaf/FLAG4d88983dc [2022-02-20 16:50:56,370 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:50:56,370 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2022-02-20 16:50:56,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e80558011/14b8b110367b422baa9658f1c1d0daaf/FLAG4d88983dc [2022-02-20 16:50:56,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e80558011/14b8b110367b422baa9658f1c1d0daaf [2022-02-20 16:50:56,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:50:56,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:50:56,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:50:56,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:50:56,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:50:56,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252a4b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56, skipping insertion in model container [2022-02-20 16:50:56,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:50:56,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:50:56,648 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/dll-rb-sentinel-1.i[22665,22678] [2022-02-20 16:50:56,651 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/dll-rb-sentinel-1.i[22735,22748] [2022-02-20 16:50:56,651 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/dll-rb-sentinel-1.i[22799,22812] [2022-02-20 16:50:56,652 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/dll-rb-sentinel-1.i[22894,22907] [2022-02-20 16:50:56,653 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/dll-rb-sentinel-1.i[22966,22979] [2022-02-20 16:50:56,654 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/dll-rb-sentinel-1.i[23105,23118] [2022-02-20 16:50:56,654 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/dll-rb-sentinel-1.i[23179,23192] [2022-02-20 16:50:56,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:50:56,666 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:50:56,703 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/dll-rb-sentinel-1.i[22665,22678] [2022-02-20 16:50:56,707 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/dll-rb-sentinel-1.i[22735,22748] [2022-02-20 16:50:56,707 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/dll-rb-sentinel-1.i[22799,22812] [2022-02-20 16:50:56,709 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/dll-rb-sentinel-1.i[22894,22907] [2022-02-20 16:50:56,709 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/dll-rb-sentinel-1.i[22966,22979] [2022-02-20 16:50:56,711 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/dll-rb-sentinel-1.i[23105,23118] [2022-02-20 16:50:56,712 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/dll-rb-sentinel-1.i[23179,23192] [2022-02-20 16:50:56,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:50:56,737 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:50:56,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56 WrapperNode [2022-02-20 16:50:56,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:50:56,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:50:56,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:50:56,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:50:56,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,774 INFO L137 Inliner]: procedures = 119, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 156 [2022-02-20 16:50:56,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:50:56,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:50:56,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:50:56,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:50:56,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:50:56,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:50:56,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:50:56,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:50:56,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (1/1) ... [2022-02-20 16:50:56,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:50:56,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:50:56,840 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 16:50:56,842 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 16:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-20 16:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-20 16:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-20 16:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:50:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:50:57,005 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:50:57,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:50:57,405 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:50:57,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:50:57,411 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-02-20 16:50:57,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:50:57 BoogieIcfgContainer [2022-02-20 16:50:57,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:50:57,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:50:57,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:50:57,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:50:57,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:50:56" (1/3) ... [2022-02-20 16:50:57,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa6fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:50:57, skipping insertion in model container [2022-02-20 16:50:57,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:50:56" (2/3) ... [2022-02-20 16:50:57,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa6fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:50:57, skipping insertion in model container [2022-02-20 16:50:57,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:50:57" (3/3) ... [2022-02-20 16:50:57,422 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2022-02-20 16:50:57,427 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:50:57,427 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-02-20 16:50:57,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:50:57,489 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 16:50:57,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-20 16:50:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 46 states have internal predecessors, (76), 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 16:50:57,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-02-20 16:50:57,507 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:50:57,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-02-20 16:50:57,508 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:50:57,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:50:57,513 INFO L85 PathProgramCache]: Analyzing trace with hash 891600134, now seen corresponding path program 1 times [2022-02-20 16:50:57,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:50:57,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64420937] [2022-02-20 16:50:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:50:57,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:50:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:50:57,722 INFO L290 TraceCheckUtils]: 0: Hoare triple {50#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); {50#true} is VALID [2022-02-20 16:50:57,723 INFO L290 TraceCheckUtils]: 1: Hoare triple {50#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {50#true} is VALID [2022-02-20 16:50:57,724 INFO L290 TraceCheckUtils]: 2: Hoare triple {50#true} assume !true; {51#false} is VALID [2022-02-20 16:50:57,725 INFO L290 TraceCheckUtils]: 3: Hoare triple {51#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; {51#false} is VALID [2022-02-20 16:50:57,725 INFO L290 TraceCheckUtils]: 4: Hoare triple {51#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {51#false} is VALID [2022-02-20 16:50:57,725 INFO L290 TraceCheckUtils]: 5: Hoare triple {51#false} assume !false; {51#false} is VALID [2022-02-20 16:50:57,726 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 16:50:57,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:50:57,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64420937] [2022-02-20 16:50:57,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64420937] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:50:57,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:50:57,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:50:57,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164177025] [2022-02-20 16:50:57,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:50:57,736 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 16:50:57,737 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:50:57,747 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 16:50:57,764 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 16:50:57,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:50:57,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:50:57,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:50:57,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:50:57,792 INFO L87 Difference]: Start difference. First operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 46 states have internal predecessors, (76), 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 16:50:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:57,886 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2022-02-20 16:50:57,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:50:57,887 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 16:50:57,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:50:57,888 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 16:50:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2022-02-20 16:50:57,896 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 16:50:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2022-02-20 16:50:57,899 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 150 transitions. [2022-02-20 16:50:58,023 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:58,036 INFO L225 Difference]: With dead ends: 92 [2022-02-20 16:50:58,036 INFO L226 Difference]: Without dead ends: 41 [2022-02-20 16:50:58,038 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 16:50:58,040 INFO L933 BasicCegarLoop]: 52 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, 52 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 16:50:58,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:50:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-20 16:50:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-02-20 16:50:58,061 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:50:58,061 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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 16:50:58,063 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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 16:50:58,063 INFO L87 Difference]: Start difference. First operand 41 states. Second operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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 16:50:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,066 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-02-20 16:50:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-02-20 16:50:58,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:58,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:58,068 INFO L74 IsIncluded]: Start isIncluded. First operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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 16:50:58,070 INFO L87 Difference]: Start difference. First operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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 16:50:58,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,074 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-02-20 16:50:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-02-20 16:50:58,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:58,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:58,074 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:50:58,074 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:50:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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 16:50:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2022-02-20 16:50:58,077 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 6 [2022-02-20 16:50:58,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:50:58,077 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2022-02-20 16:50:58,077 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 16:50:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-02-20 16:50:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 16:50:58,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:50:58,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:50:58,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:50:58,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:50:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:50:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1806905862, now seen corresponding path program 1 times [2022-02-20 16:50:58,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:50:58,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141910035] [2022-02-20 16:50:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:50:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:50:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:50:58,193 INFO L290 TraceCheckUtils]: 0: Hoare triple {280#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); {280#true} is VALID [2022-02-20 16:50:58,196 INFO L290 TraceCheckUtils]: 1: Hoare triple {280#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {282#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:50:58,196 INFO L290 TraceCheckUtils]: 2: Hoare triple {282#(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; {282#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:50:58,197 INFO L290 TraceCheckUtils]: 3: Hoare triple {282#(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; {282#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:50:58,197 INFO L290 TraceCheckUtils]: 4: Hoare triple {282#(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; {283#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:58,198 INFO L290 TraceCheckUtils]: 5: Hoare triple {283#(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); {281#false} is VALID [2022-02-20 16:50:58,198 INFO L290 TraceCheckUtils]: 6: Hoare triple {281#false} assume !false; {281#false} is VALID [2022-02-20 16:50:58,198 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 16:50:58,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:50:58,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141910035] [2022-02-20 16:50:58,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141910035] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:50:58,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:50:58,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:50:58,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268570131] [2022-02-20 16:50:58,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:50:58,201 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 16:50:58,201 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:50:58,201 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 16:50:58,217 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 16:50:58,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:50:58,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:50:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:50:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:50:58,218 INFO L87 Difference]: Start difference. First operand 41 states and 44 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 16:50:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,380 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-02-20 16:50:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:50:58,380 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 16:50:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:50:58,380 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 16:50:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2022-02-20 16:50:58,381 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 16:50:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2022-02-20 16:50:58,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 52 transitions. [2022-02-20 16:50:58,432 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:58,435 INFO L225 Difference]: With dead ends: 47 [2022-02-20 16:50:58,436 INFO L226 Difference]: Without dead ends: 45 [2022-02-20 16:50:58,436 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 16:50:58,438 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 51 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 16:50:58,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 47 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-20 16:50:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-02-20 16:50:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-02-20 16:50:58,445 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:50:58,446 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand has 39 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 38 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 16:50:58,447 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand has 39 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 38 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 16:50:58,447 INFO L87 Difference]: Start difference. First operand 45 states. Second operand has 39 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 38 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 16:50:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,450 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-02-20 16:50:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-02-20 16:50:58,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:58,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:58,452 INFO L74 IsIncluded]: Start isIncluded. First operand has 39 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 38 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) Second operand 45 states. [2022-02-20 16:50:58,453 INFO L87 Difference]: Start difference. First operand has 39 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 38 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) Second operand 45 states. [2022-02-20 16:50:58,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,456 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-02-20 16:50:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-02-20 16:50:58,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:58,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:58,458 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:50:58,458 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:50:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 38 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 16:50:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-02-20 16:50:58,462 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 7 [2022-02-20 16:50:58,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:50:58,462 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-02-20 16:50:58,462 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 16:50:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-02-20 16:50:58,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-02-20 16:50:58,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:50:58,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:50:58,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:50:58,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:50:58,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:50:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash 179566605, now seen corresponding path program 1 times [2022-02-20 16:50:58,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:50:58,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589541483] [2022-02-20 16:50:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:50:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:50:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:50:58,570 INFO L290 TraceCheckUtils]: 0: Hoare triple {471#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); {471#true} is VALID [2022-02-20 16:50:58,571 INFO L290 TraceCheckUtils]: 1: Hoare triple {471#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {471#true} is VALID [2022-02-20 16:50:58,571 INFO L290 TraceCheckUtils]: 2: Hoare triple {471#true} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {471#true} is VALID [2022-02-20 16:50:58,571 INFO L290 TraceCheckUtils]: 3: Hoare triple {471#true} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(12);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);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#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~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#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~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {471#true} is VALID [2022-02-20 16:50:58,573 INFO L290 TraceCheckUtils]: 4: Hoare triple {471#true} assume !(0 != main_#t~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#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~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#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, 8 + main_~end~0#1.offset, 4); {473#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:50:58,574 INFO L290 TraceCheckUtils]: 5: Hoare triple {473#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {474#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem11#1|)} is VALID [2022-02-20 16:50:58,574 INFO L290 TraceCheckUtils]: 6: Hoare triple {474#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem11#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {472#false} is VALID [2022-02-20 16:50:58,574 INFO L290 TraceCheckUtils]: 7: Hoare triple {472#false} assume !false; {472#false} is VALID [2022-02-20 16:50:58,574 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 16:50:58,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:50:58,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589541483] [2022-02-20 16:50:58,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589541483] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:50:58,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:50:58,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:50:58,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709208012] [2022-02-20 16:50:58,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:50:58,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-02-20 16:50:58,576 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:50:58,576 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 16:50:58,587 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:58,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:50:58,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:50:58,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:50:58,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:50:58,588 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 16:50:58,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,727 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-02-20 16:50:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:50:58,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-02-20 16:50:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:50:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 16:50:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2022-02-20 16:50:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 16:50:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2022-02-20 16:50:58,729 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 42 transitions. [2022-02-20 16:50:58,763 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:58,764 INFO L225 Difference]: With dead ends: 39 [2022-02-20 16:50:58,764 INFO L226 Difference]: Without dead ends: 37 [2022-02-20 16:50:58,764 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 16:50:58,765 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 13 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:50:58,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 79 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:50:58,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-02-20 16:50:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-02-20 16:50:58,768 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:50:58,768 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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 16:50:58,768 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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 16:50:58,769 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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 16:50:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,769 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-02-20 16:50:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-02-20 16:50:58,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:58,770 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:58,771 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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 37 states. [2022-02-20 16:50:58,771 INFO L87 Difference]: Start difference. First operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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 37 states. [2022-02-20 16:50:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:58,772 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-02-20 16:50:58,772 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-02-20 16:50:58,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:58,773 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:58,773 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:50:58,773 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:50:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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 16:50:58,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-02-20 16:50:58,774 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 8 [2022-02-20 16:50:58,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:50:58,775 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-02-20 16:50:58,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 16:50:58,775 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-02-20 16:50:58,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:50:58,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:50:58,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:50:58,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 16:50:58,777 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:50:58,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:50:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 711412120, now seen corresponding path program 1 times [2022-02-20 16:50:58,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:50:58,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747987689] [2022-02-20 16:50:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:50:58,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:50:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:50:58,926 INFO L290 TraceCheckUtils]: 0: Hoare triple {635#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); {635#true} is VALID [2022-02-20 16:50:58,928 INFO L290 TraceCheckUtils]: 1: Hoare triple {635#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {637#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:50:58,929 INFO L290 TraceCheckUtils]: 2: Hoare triple {637#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {637#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:50:58,929 INFO L290 TraceCheckUtils]: 3: Hoare triple {637#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {637#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:50:58,930 INFO L290 TraceCheckUtils]: 4: Hoare triple {637#(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| 8))) (= |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; {638#(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|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:50:58,930 INFO L290 TraceCheckUtils]: 5: Hoare triple {638#(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|) (+ 8 |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); {639#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:50:58,931 INFO L290 TraceCheckUtils]: 6: Hoare triple {639#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {639#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:50:58,931 INFO L290 TraceCheckUtils]: 7: Hoare triple {639#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {640#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} is VALID [2022-02-20 16:50:58,931 INFO L290 TraceCheckUtils]: 8: Hoare triple {640#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {636#false} is VALID [2022-02-20 16:50:58,931 INFO L290 TraceCheckUtils]: 9: Hoare triple {636#false} assume !false; {636#false} is VALID [2022-02-20 16:50:58,932 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 16:50:58,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:50:58,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747987689] [2022-02-20 16:50:58,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747987689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:50:58,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:50:58,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-20 16:50:58,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915204531] [2022-02-20 16:50:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:50:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:58,933 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:50:58,933 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:58,941 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 16:50:58,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-20 16:50:58,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:50:58,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-20 16:50:58,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-20 16:50:58,942 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,377 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2022-02-20 16:50:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 16:50:59,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:50:59,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 86 transitions. [2022-02-20 16:50:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 86 transitions. [2022-02-20 16:50:59,380 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 86 transitions. [2022-02-20 16:50:59,455 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:59,456 INFO L225 Difference]: With dead ends: 78 [2022-02-20 16:50:59,456 INFO L226 Difference]: Without dead ends: 76 [2022-02-20 16:50:59,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-20 16:50:59,457 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 52 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-20 16:50:59,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 116 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-20 16:50:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-02-20 16:50:59,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 55. [2022-02-20 16:50:59,461 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:50:59,461 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand has 55 states, 50 states have (on average 1.26) internal successors, (63), 54 states have internal predecessors, (63), 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 16:50:59,461 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand has 55 states, 50 states have (on average 1.26) internal successors, (63), 54 states have internal predecessors, (63), 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 16:50:59,462 INFO L87 Difference]: Start difference. First operand 76 states. Second operand has 55 states, 50 states have (on average 1.26) internal successors, (63), 54 states have internal predecessors, (63), 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 16:50:59,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,463 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-02-20 16:50:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2022-02-20 16:50:59,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:59,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:59,464 INFO L74 IsIncluded]: Start isIncluded. First operand has 55 states, 50 states have (on average 1.26) internal successors, (63), 54 states have internal predecessors, (63), 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 76 states. [2022-02-20 16:50:59,464 INFO L87 Difference]: Start difference. First operand has 55 states, 50 states have (on average 1.26) internal successors, (63), 54 states have internal predecessors, (63), 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 76 states. [2022-02-20 16:50:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,467 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-02-20 16:50:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2022-02-20 16:50:59,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:59,470 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:59,470 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:50:59,470 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:50:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.26) internal successors, (63), 54 states have internal predecessors, (63), 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 16:50:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2022-02-20 16:50:59,472 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 10 [2022-02-20 16:50:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:50:59,473 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2022-02-20 16:50:59,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 16:50:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2022-02-20 16:50:59,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:50:59,473 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:50:59,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:50:59,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 16:50:59,474 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:50:59,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:50:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2056579816, now seen corresponding path program 1 times [2022-02-20 16:50:59,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:50:59,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705758933] [2022-02-20 16:50:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:50:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:50:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:50:59,580 INFO L290 TraceCheckUtils]: 0: Hoare triple {947#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); {947#true} is VALID [2022-02-20 16:50:59,581 INFO L290 TraceCheckUtils]: 1: Hoare triple {947#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {947#true} is VALID [2022-02-20 16:50:59,581 INFO L290 TraceCheckUtils]: 2: Hoare triple {947#true} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {947#true} is VALID [2022-02-20 16:50:59,581 INFO L290 TraceCheckUtils]: 3: Hoare triple {947#true} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(12);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);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#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~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#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~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {947#true} is VALID [2022-02-20 16:50:59,583 INFO L290 TraceCheckUtils]: 4: Hoare triple {947#true} assume !(0 != main_#t~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#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~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#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, 8 + main_~end~0#1.offset, 4); {949#(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 16:50:59,583 INFO L290 TraceCheckUtils]: 5: Hoare triple {949#(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~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {949#(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 16:50:59,584 INFO L290 TraceCheckUtils]: 6: Hoare triple {949#(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~mem11#1);havoc main_#t~mem11#1; {949#(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 16:50:59,584 INFO L290 TraceCheckUtils]: 7: Hoare triple {949#(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; {949#(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 16:50:59,585 INFO L290 TraceCheckUtils]: 8: Hoare triple {949#(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~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {950#(and (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_#t~mem12#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_#t~mem12#1.base|))} is VALID [2022-02-20 16:50:59,585 INFO L290 TraceCheckUtils]: 9: Hoare triple {950#(and (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_#t~mem12#1.offset|) (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_#t~mem12#1.base|))} assume !(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {948#false} is VALID [2022-02-20 16:50:59,585 INFO L290 TraceCheckUtils]: 10: Hoare triple {948#false} assume !false; {948#false} is VALID [2022-02-20 16:50:59,585 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 16:50:59,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:50:59,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705758933] [2022-02-20 16:50:59,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705758933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:50:59,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:50:59,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:50:59,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689269257] [2022-02-20 16:50:59,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:50:59,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-02-20 16:50:59,587 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:50:59,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 16:50:59,596 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:59,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:50:59,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:50:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:50:59,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:50:59,597 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 16:50:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,748 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2022-02-20 16:50:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:50:59,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-02-20 16:50:59,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:50:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 16:50:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2022-02-20 16:50:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 16:50:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2022-02-20 16:50:59,750 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 40 transitions. [2022-02-20 16:50:59,776 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:59,777 INFO L225 Difference]: With dead ends: 55 [2022-02-20 16:50:59,777 INFO L226 Difference]: Without dead ends: 53 [2022-02-20 16:50:59,777 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 16:50:59,778 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:50:59,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 68 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:50:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-02-20 16:50:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-02-20 16:50:59,781 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:50:59,782 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 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 16:50:59,782 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 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 16:50:59,782 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 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 16:50:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,783 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-02-20 16:50:59,783 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-02-20 16:50:59,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:59,784 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:59,784 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 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 53 states. [2022-02-20 16:50:59,784 INFO L87 Difference]: Start difference. First operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 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 53 states. [2022-02-20 16:50:59,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,785 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-02-20 16:50:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-02-20 16:50:59,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:50:59,786 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:50:59,786 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:50:59,786 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:50:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 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 16:50:59,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-02-20 16:50:59,787 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 11 [2022-02-20 16:50:59,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:50:59,787 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-02-20 16:50:59,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 16:50:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-02-20 16:50:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:50:59,787 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:50:59,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:50:59,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-20 16:50:59,788 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:50:59,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:50:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash -688119236, now seen corresponding path program 1 times [2022-02-20 16:50:59,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:50:59,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893225671] [2022-02-20 16:50:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:50:59,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:50:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:50:59,887 INFO L290 TraceCheckUtils]: 0: Hoare triple {1181#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); {1181#true} is VALID [2022-02-20 16:50:59,892 INFO L290 TraceCheckUtils]: 1: Hoare triple {1181#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {1183#(= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1)} is VALID [2022-02-20 16:50:59,892 INFO L290 TraceCheckUtils]: 2: Hoare triple {1183#(= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1)} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1183#(= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1)} is VALID [2022-02-20 16:50:59,893 INFO L290 TraceCheckUtils]: 3: Hoare triple {1183#(= (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(12);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);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#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~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#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~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {1183#(= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1)} is VALID [2022-02-20 16:50:59,895 INFO L290 TraceCheckUtils]: 4: Hoare triple {1183#(= (select |#valid| |ULTIMATE.start_main_~null~0#1.base|) 1)} assume !(0 != main_#t~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#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~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#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, 8 + main_~end~0#1.offset, 4); {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,895 INFO L290 TraceCheckUtils]: 5: Hoare triple {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,895 INFO L290 TraceCheckUtils]: 6: Hoare triple {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} assume !!(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,896 INFO L290 TraceCheckUtils]: 7: Hoare triple {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} goto; {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,896 INFO L290 TraceCheckUtils]: 8: Hoare triple {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,897 INFO L290 TraceCheckUtils]: 9: Hoare triple {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} assume !!(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,897 INFO L290 TraceCheckUtils]: 10: Hoare triple {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} goto; {1184#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:50:59,897 INFO L290 TraceCheckUtils]: 11: Hoare triple {1184#(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); {1182#false} is VALID [2022-02-20 16:50:59,897 INFO L290 TraceCheckUtils]: 12: Hoare triple {1182#false} assume !false; {1182#false} is VALID [2022-02-20 16:50:59,897 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 16:50:59,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:50:59,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893225671] [2022-02-20 16:50:59,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893225671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:50:59,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:50:59,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:50:59,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786763418] [2022-02-20 16:50:59,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:50:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:50:59,898 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:50:59,898 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:50:59,908 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:50:59,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:50:59,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:50:59,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:50:59,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:50:59,909 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:50:59,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:50:59,992 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-02-20 16:50:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:50:59,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:50:59,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:50:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:50:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-02-20 16:50:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:50:59,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-02-20 16:50:59,994 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 38 transitions. [2022-02-20 16:51:00,018 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 16:51:00,019 INFO L225 Difference]: With dead ends: 53 [2022-02-20 16:51:00,019 INFO L226 Difference]: Without dead ends: 51 [2022-02-20 16:51:00,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 16:51:00,020 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 36 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:51:00,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 38 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:51:00,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-02-20 16:51:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-02-20 16:51:00,023 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:51:00,023 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand has 51 states, 48 states have (on average 1.1875) internal successors, (57), 50 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 16:51:00,024 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand has 51 states, 48 states have (on average 1.1875) internal successors, (57), 50 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 16:51:00,024 INFO L87 Difference]: Start difference. First operand 51 states. Second operand has 51 states, 48 states have (on average 1.1875) internal successors, (57), 50 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 16:51:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:00,025 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-02-20 16:51:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-02-20 16:51:00,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:00,025 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:00,025 INFO L74 IsIncluded]: Start isIncluded. First operand has 51 states, 48 states have (on average 1.1875) internal successors, (57), 50 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 51 states. [2022-02-20 16:51:00,025 INFO L87 Difference]: Start difference. First operand has 51 states, 48 states have (on average 1.1875) internal successors, (57), 50 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 51 states. [2022-02-20 16:51:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:00,026 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-02-20 16:51:00,026 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-02-20 16:51:00,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:00,026 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:00,026 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:51:00,026 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:51:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.1875) internal successors, (57), 50 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 16:51:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-02-20 16:51:00,027 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 13 [2022-02-20 16:51:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:51:00,028 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-02-20 16:51:00,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 16:51:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-02-20 16:51:00,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-20 16:51:00,028 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:51:00,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:51:00,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-20 16:51:00,028 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:51:00,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:51:00,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1285114177, now seen corresponding path program 1 times [2022-02-20 16:51:00,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:51:00,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678257344] [2022-02-20 16:51:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:00,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:51:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:00,140 INFO L290 TraceCheckUtils]: 0: Hoare triple {1407#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); {1407#true} is VALID [2022-02-20 16:51:00,141 INFO L290 TraceCheckUtils]: 1: Hoare triple {1407#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {1407#true} is VALID [2022-02-20 16:51:00,141 INFO L290 TraceCheckUtils]: 2: Hoare triple {1407#true} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {1407#true} is VALID [2022-02-20 16:51:00,141 INFO L290 TraceCheckUtils]: 3: Hoare triple {1407#true} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {1407#true} is VALID [2022-02-20 16:51:00,141 INFO L290 TraceCheckUtils]: 4: Hoare triple {1407#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; {1407#true} is VALID [2022-02-20 16:51:00,141 INFO L290 TraceCheckUtils]: 5: Hoare triple {1407#true} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1407#true} is VALID [2022-02-20 16:51:00,141 INFO L290 TraceCheckUtils]: 6: Hoare triple {1407#true} goto; {1407#true} is VALID [2022-02-20 16:51:00,142 INFO L290 TraceCheckUtils]: 7: Hoare triple {1407#true} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1409#(= (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_#t~mem13#1|)} is VALID [2022-02-20 16:51:00,142 INFO L290 TraceCheckUtils]: 8: Hoare triple {1409#(= (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_#t~mem13#1|)} assume !!(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {1410#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:00,142 INFO L290 TraceCheckUtils]: 9: Hoare triple {1410#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1410#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:00,146 INFO L290 TraceCheckUtils]: 10: Hoare triple {1410#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |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~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1411#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem14#1|)} is VALID [2022-02-20 16:51:00,146 INFO L290 TraceCheckUtils]: 11: Hoare triple {1411#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem14#1|)} assume ~unnamed1~0~RED == main_#t~mem14#1;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#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~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset; {1408#false} is VALID [2022-02-20 16:51:00,147 INFO L290 TraceCheckUtils]: 12: Hoare triple {1408#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1408#false} is VALID [2022-02-20 16:51:00,147 INFO L290 TraceCheckUtils]: 13: Hoare triple {1408#false} assume !false; {1408#false} is VALID [2022-02-20 16:51:00,147 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 16:51:00,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:51:00,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678257344] [2022-02-20 16:51:00,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678257344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:51:00,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:51:00,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 16:51:00,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151769095] [2022-02-20 16:51:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:51:00,149 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 16:51:00,149 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:51:00,149 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 16:51:00,158 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 16:51:00,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 16:51:00,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:51:00,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 16:51:00,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-20 16:51:00,158 INFO L87 Difference]: Start difference. First operand 51 states and 57 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 16:51:00,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:00,342 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2022-02-20 16:51:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-20 16:51:00,342 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 16:51:00,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:51:00,342 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 16:51:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-02-20 16:51:00,343 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 16:51:00,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-02-20 16:51:00,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 53 transitions. [2022-02-20 16:51:00,378 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:51:00,378 INFO L225 Difference]: With dead ends: 66 [2022-02-20 16:51:00,379 INFO L226 Difference]: Without dead ends: 54 [2022-02-20 16:51:00,379 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 16:51:00,379 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 16:51:00,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 77 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-20 16:51:00,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-02-20 16:51:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2022-02-20 16:51:00,383 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:51:00,383 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 16:51:00,387 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 16:51:00,387 INFO L87 Difference]: Start difference. First operand 54 states. Second operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 16:51:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:00,390 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-02-20 16:51:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-02-20 16:51:00,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:00,390 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:00,390 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 54 states. [2022-02-20 16:51:00,390 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 54 states. [2022-02-20 16:51:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:00,392 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-02-20 16:51:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-02-20 16:51:00,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:00,392 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:00,392 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:51:00,392 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:51:00,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 16:51:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-02-20 16:51:00,394 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 14 [2022-02-20 16:51:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:51:00,394 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-02-20 16:51:00,394 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 16:51:00,394 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-02-20 16:51:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-20 16:51:00,395 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:51:00,395 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:51:00,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-20 16:51:00,395 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:51:00,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:51:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1621160418, now seen corresponding path program 1 times [2022-02-20 16:51:00,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:51:00,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138664946] [2022-02-20 16:51:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:51:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:00,485 INFO L290 TraceCheckUtils]: 0: Hoare triple {1656#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); {1656#true} is VALID [2022-02-20 16:51:00,487 INFO L290 TraceCheckUtils]: 1: Hoare triple {1656#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {1658#(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|)) (= |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 16:51:00,487 INFO L290 TraceCheckUtils]: 2: Hoare triple {1658#(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|)) (= |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; {1658#(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|)) (= |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 16:51:00,488 INFO L290 TraceCheckUtils]: 3: Hoare triple {1658#(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|)) (= |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; {1658#(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|)) (= |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 16:51:00,488 INFO L290 TraceCheckUtils]: 4: Hoare triple {1658#(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|)) (= |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; {1659#(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_~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 16:51:00,489 INFO L290 TraceCheckUtils]: 5: Hoare triple {1659#(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_~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); {1659#(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_~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 16:51:00,489 INFO L290 TraceCheckUtils]: 6: Hoare triple {1659#(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_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1659#(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_~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 16:51:00,490 INFO L290 TraceCheckUtils]: 7: Hoare triple {1659#(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_~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 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1659#(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_~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 16:51:00,490 INFO L290 TraceCheckUtils]: 8: Hoare triple {1659#(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_~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~mem13#1);havoc main_#t~mem13#1; {1659#(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_~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 16:51:00,490 INFO L290 TraceCheckUtils]: 9: Hoare triple {1659#(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_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {1659#(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_~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 16:51:00,491 INFO L290 TraceCheckUtils]: 10: Hoare triple {1659#(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_~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~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1659#(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_~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 16:51:00,491 INFO L290 TraceCheckUtils]: 11: Hoare triple {1659#(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_~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~mem14#1);havoc main_#t~mem14#1; {1659#(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_~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 16:51:00,492 INFO L290 TraceCheckUtils]: 12: Hoare triple {1659#(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_~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~mem17#1.base, main_#t~mem17#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~mem17#1.base, main_#t~mem17#1.offset;havoc main_#t~mem17#1.base, main_#t~mem17#1.offset; {1660#(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|) (= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:00,492 INFO L290 TraceCheckUtils]: 13: Hoare triple {1660#(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|) (= |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);call main_#t~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1657#false} is VALID [2022-02-20 16:51:00,493 INFO L290 TraceCheckUtils]: 14: Hoare triple {1657#false} assume ~unnamed1~0~RED == main_#t~mem14#1;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#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~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset; {1657#false} is VALID [2022-02-20 16:51:00,493 INFO L290 TraceCheckUtils]: 15: Hoare triple {1657#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1657#false} is VALID [2022-02-20 16:51:00,493 INFO L290 TraceCheckUtils]: 16: Hoare triple {1657#false} assume !false; {1657#false} is VALID [2022-02-20 16:51:00,493 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 16:51:00,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:51:00,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138664946] [2022-02-20 16:51:00,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138664946] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:51:00,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736364864] [2022-02-20 16:51:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:00,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:51:00,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:51:00,496 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 16:51:00,497 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 16:51:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:00,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-20 16:51:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:00,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:51:00,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:00,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:00,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:00,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-02-20 16:51:00,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:00,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:00,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:00,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-02-20 16:51:00,955 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 16:51:00,962 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 16:51:00,972 INFO L290 TraceCheckUtils]: 0: Hoare triple {1656#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); {1656#true} is VALID [2022-02-20 16:51:00,974 INFO L290 TraceCheckUtils]: 1: Hoare triple {1656#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {1667#(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|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |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 16:51:00,975 INFO L290 TraceCheckUtils]: 2: Hoare triple {1667#(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|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |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; {1667#(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|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |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 16:51:00,975 INFO L290 TraceCheckUtils]: 3: Hoare triple {1667#(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|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |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; {1667#(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|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |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 16:51:00,975 INFO L290 TraceCheckUtils]: 4: Hoare triple {1667#(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|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |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; {1677#(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) (= |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 16:51:00,976 INFO L290 TraceCheckUtils]: 5: Hoare triple {1677#(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) (= |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); {1677#(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) (= |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 16:51:00,976 INFO L290 TraceCheckUtils]: 6: Hoare triple {1677#(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) (= |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; {1677#(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) (= |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 16:51:00,977 INFO L290 TraceCheckUtils]: 7: Hoare triple {1677#(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) (= |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 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1677#(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) (= |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 16:51:00,977 INFO L290 TraceCheckUtils]: 8: Hoare triple {1677#(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) (= |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~mem13#1);havoc main_#t~mem13#1; {1677#(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) (= |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 16:51:00,978 INFO L290 TraceCheckUtils]: 9: Hoare triple {1677#(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) (= |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; {1677#(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) (= |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 16:51:00,978 INFO L290 TraceCheckUtils]: 10: Hoare triple {1677#(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) (= |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~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1677#(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) (= |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 16:51:00,979 INFO L290 TraceCheckUtils]: 11: Hoare triple {1677#(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) (= |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~mem14#1);havoc main_#t~mem14#1; {1677#(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) (= |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 16:51:00,979 INFO L290 TraceCheckUtils]: 12: Hoare triple {1677#(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) (= |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~mem17#1.base, main_#t~mem17#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~mem17#1.base, main_#t~mem17#1.offset;havoc main_#t~mem17#1.base, main_#t~mem17#1.offset; {1660#(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|) (= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:00,979 INFO L290 TraceCheckUtils]: 13: Hoare triple {1660#(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|) (= |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);call main_#t~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1657#false} is VALID [2022-02-20 16:51:00,980 INFO L290 TraceCheckUtils]: 14: Hoare triple {1657#false} assume ~unnamed1~0~RED == main_#t~mem14#1;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#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~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset; {1657#false} is VALID [2022-02-20 16:51:00,980 INFO L290 TraceCheckUtils]: 15: Hoare triple {1657#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1657#false} is VALID [2022-02-20 16:51:00,980 INFO L290 TraceCheckUtils]: 16: Hoare triple {1657#false} assume !false; {1657#false} is VALID [2022-02-20 16:51:00,980 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 16:51:00,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:51:01,174 INFO L290 TraceCheckUtils]: 16: Hoare triple {1657#false} assume !false; {1657#false} is VALID [2022-02-20 16:51:01,174 INFO L290 TraceCheckUtils]: 15: Hoare triple {1657#false} assume !(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {1657#false} is VALID [2022-02-20 16:51:01,174 INFO L290 TraceCheckUtils]: 14: Hoare triple {1657#false} assume ~unnamed1~0~RED == main_#t~mem14#1;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#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~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset; {1657#false} is VALID [2022-02-20 16:51:01,175 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| |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~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1657#false} is VALID [2022-02-20 16:51:01,177 INFO L290 TraceCheckUtils]: 12: Hoare triple {1727#(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~mem17#1.base, main_#t~mem17#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~mem17#1.base, main_#t~mem17#1.offset;havoc main_#t~mem17#1.base, main_#t~mem17#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| |ULTIMATE.start_main_~end~0#1.offset|))} is VALID [2022-02-20 16:51:01,177 INFO L290 TraceCheckUtils]: 11: Hoare triple {1727#(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~mem14#1);havoc main_#t~mem14#1; {1727#(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 16:51:01,178 INFO L290 TraceCheckUtils]: 10: Hoare triple {1727#(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~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1727#(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 16:51:01,178 INFO L290 TraceCheckUtils]: 9: Hoare triple {1727#(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; {1727#(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 16:51:01,179 INFO L290 TraceCheckUtils]: 8: Hoare triple {1727#(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~mem13#1);havoc main_#t~mem13#1; {1727#(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 16:51:01,179 INFO L290 TraceCheckUtils]: 7: Hoare triple {1727#(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 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {1727#(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 16:51:01,179 INFO L290 TraceCheckUtils]: 6: Hoare triple {1727#(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; {1727#(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 16:51:01,180 INFO L290 TraceCheckUtils]: 5: Hoare triple {1727#(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); {1727#(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 16:51:01,181 INFO L290 TraceCheckUtils]: 4: Hoare triple {1752#(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; {1727#(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 16:51:01,182 INFO L290 TraceCheckUtils]: 3: Hoare triple {1752#(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; {1752#(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 16:51:01,182 INFO L290 TraceCheckUtils]: 2: Hoare triple {1752#(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; {1752#(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 16:51:01,185 INFO L290 TraceCheckUtils]: 1: Hoare triple {1656#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {1752#(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 16:51:01,185 INFO L290 TraceCheckUtils]: 0: Hoare triple {1656#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); {1656#true} is VALID [2022-02-20 16:51:01,185 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 16:51:01,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736364864] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 16:51:01,185 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 16:51:01,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-20 16:51:01,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359315185] [2022-02-20 16:51:01,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 16:51:01,186 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 16:51:01,186 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:51:01,186 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 16:51:01,218 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:51:01,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-20 16:51:01,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:51:01,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-20 16:51:01,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-20 16:51:01,219 INFO L87 Difference]: Start difference. First operand 53 states and 59 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 16:51:01,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:01,525 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-02-20 16:51:01,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 16:51:01,525 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 16:51:01,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:51:01,525 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 16:51:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2022-02-20 16:51:01,526 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 16:51:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2022-02-20 16:51:01,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 62 transitions. [2022-02-20 16:51:01,571 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:51:01,572 INFO L225 Difference]: With dead ends: 75 [2022-02-20 16:51:01,572 INFO L226 Difference]: Without dead ends: 53 [2022-02-20 16:51:01,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-20 16:51:01,573 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 16:51:01,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 124 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-20 16:51:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-02-20 16:51:01,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-02-20 16:51:01,576 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:51:01,576 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 16:51:01,576 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 16:51:01,576 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 16:51:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:01,577 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-02-20 16:51:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-02-20 16:51:01,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:01,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:01,577 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 53 states. [2022-02-20 16:51:01,577 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 53 states. [2022-02-20 16:51:01,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:01,578 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-02-20 16:51:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-02-20 16:51:01,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:01,578 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:01,578 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:51:01,578 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:51:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 16:51:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-02-20 16:51:01,579 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 17 [2022-02-20 16:51:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:51:01,580 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-02-20 16:51:01,580 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 16:51:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-02-20 16:51:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-20 16:51:01,580 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:51:01,580 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:51:01,601 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 16:51:01,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:51:01,799 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:51:01,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:51:01,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1036168340, now seen corresponding path program 1 times [2022-02-20 16:51:01,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:51:01,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93265167] [2022-02-20 16:51:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:01,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:51:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:02,111 INFO L290 TraceCheckUtils]: 0: Hoare triple {2016#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); {2016#true} is VALID [2022-02-20 16:51:02,114 INFO L290 TraceCheckUtils]: 1: Hoare triple {2016#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {2018#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 8) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,115 INFO L290 TraceCheckUtils]: 2: Hoare triple {2018#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 8) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2018#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 8) |ULTIMATE.start_main_~end~0#1.offset|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,117 INFO L290 TraceCheckUtils]: 3: Hoare triple {2018#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (not (= (+ |ULTIMATE.start_main_~list~0#1.offset| 8) |ULTIMATE.start_main_~end~0#1.offset|)) (= |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(12);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);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#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~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#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~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {2019#(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| 8))) (= (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 16:51:02,118 INFO L290 TraceCheckUtils]: 4: Hoare triple {2019#(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| 8))) (= (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~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#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~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#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, 8 + main_~end~0#1.offset, 4); {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,119 INFO L290 TraceCheckUtils]: 5: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,120 INFO L290 TraceCheckUtils]: 6: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,120 INFO L290 TraceCheckUtils]: 7: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} goto; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,121 INFO L290 TraceCheckUtils]: 8: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,121 INFO L290 TraceCheckUtils]: 9: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,122 INFO L290 TraceCheckUtils]: 10: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} goto; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,122 INFO L290 TraceCheckUtils]: 11: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~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); {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,123 INFO L290 TraceCheckUtils]: 12: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} goto; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,123 INFO L290 TraceCheckUtils]: 13: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,124 INFO L290 TraceCheckUtils]: 14: Hoare triple {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2020#(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| 8))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:02,124 INFO L290 TraceCheckUtils]: 15: Hoare triple {2020#(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| 8))) (= |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; {2021#(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|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:02,125 INFO L290 TraceCheckUtils]: 16: Hoare triple {2021#(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|) (+ 8 |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); {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:02,125 INFO L290 TraceCheckUtils]: 17: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:02,126 INFO L290 TraceCheckUtils]: 18: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2023#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} is VALID [2022-02-20 16:51:02,126 INFO L290 TraceCheckUtils]: 19: Hoare triple {2023#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {2017#false} is VALID [2022-02-20 16:51:02,126 INFO L290 TraceCheckUtils]: 20: Hoare triple {2017#false} assume !false; {2017#false} is VALID [2022-02-20 16:51:02,126 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 16:51:02,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:51:02,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93265167] [2022-02-20 16:51:02,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93265167] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:51:02,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471652356] [2022-02-20 16:51:02,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:02,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:51:02,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:51:02,128 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 16:51:02,129 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 16:51:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:02,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 46 conjunts are in the unsatisfiable core [2022-02-20 16:51:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:02,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:51:02,312 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 16:51:02,324 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:51:02,325 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 16:51:02,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:02,512 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 27 treesize of output 29 [2022-02-20 16:51:02,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:02,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:02,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:51:02,539 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 0 case distinctions, treesize of input 19 treesize of output 18 [2022-02-20 16:51:02,565 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 0 case distinctions, treesize of input 18 treesize of output 18 [2022-02-20 16:51:02,586 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 50 treesize of output 30 [2022-02-20 16:51:02,612 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 18 treesize of output 16 [2022-02-20 16:51:02,638 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-20 16:51:02,638 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 16:51:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:02,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:02,850 INFO L356 Elim1Store]: treesize reduction 137, result has 7.4 percent of original size [2022-02-20 16:51:02,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2022-02-20 16:51:02,882 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-02-20 16:51:02,882 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 16:51:02,985 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 16:51:02,989 INFO L290 TraceCheckUtils]: 0: Hoare triple {2016#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); {2016#true} is VALID [2022-02-20 16:51:02,991 INFO L290 TraceCheckUtils]: 1: Hoare triple {2016#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);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~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {2030#(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| 8))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:51:02,992 INFO L290 TraceCheckUtils]: 2: Hoare triple {2030#(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| 8))) (= |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; {2030#(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| 8))) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|))} is VALID [2022-02-20 16:51:02,994 INFO L290 TraceCheckUtils]: 3: Hoare triple {2030#(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| 8))) (= |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(12);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);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#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~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#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~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {2037#(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| 8))) (= (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 16:51:02,995 INFO L290 TraceCheckUtils]: 4: Hoare triple {2037#(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| 8))) (= (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~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#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~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#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, 8 + main_~end~0#1.offset, 4); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,996 INFO L290 TraceCheckUtils]: 5: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,996 INFO L290 TraceCheckUtils]: 6: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !!(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,997 INFO L290 TraceCheckUtils]: 7: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} goto; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,997 INFO L290 TraceCheckUtils]: 8: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,997 INFO L290 TraceCheckUtils]: 9: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !!(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,998 INFO L290 TraceCheckUtils]: 10: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} goto; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,998 INFO L290 TraceCheckUtils]: 11: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,998 INFO L290 TraceCheckUtils]: 12: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} goto; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,999 INFO L290 TraceCheckUtils]: 13: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,999 INFO L290 TraceCheckUtils]: 14: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:02,999 INFO L290 TraceCheckUtils]: 15: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} 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; {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:03,000 INFO L290 TraceCheckUtils]: 16: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |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); {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:03,000 INFO L290 TraceCheckUtils]: 17: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:03,001 INFO L290 TraceCheckUtils]: 18: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2023#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} is VALID [2022-02-20 16:51:03,001 INFO L290 TraceCheckUtils]: 19: Hoare triple {2023#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {2017#false} is VALID [2022-02-20 16:51:03,001 INFO L290 TraceCheckUtils]: 20: Hoare triple {2017#false} assume !false; {2017#false} is VALID [2022-02-20 16:51:03,001 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 16:51:03,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:51:03,099 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:03,099 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 33 treesize of output 34 [2022-02-20 16:51:03,110 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 71 treesize of output 51 [2022-02-20 16:51:03,116 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 24 treesize of output 22 [2022-02-20 16:51:03,477 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:03,477 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 125 treesize of output 101 [2022-02-20 16:51:03,491 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 198 treesize of output 178 [2022-02-20 16:51:03,504 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 178 treesize of output 170 [2022-02-20 16:51:19,773 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_17 Int) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int)) (v_arrayElimCell_16 Int) (v_ArrVal_923 Int)) (let ((.cse4 (= |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16)) (.cse0 (= v_arrayElimCell_17 v_arrayElimCell_14))) (or (let ((.cse1 (not .cse4))) (and (or (not .cse0) .cse1) (let ((.cse2 (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_923))) (.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (or (and (= ~unnamed1~0~BLACK (select (select (store (store (store .cse2 v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) .cse4) (and .cse1 (= ~unnamed1~0~BLACK (select (select (store (store .cse2 v_arrayElimCell_16 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))))))) (not (= (select (store |c_#valid| v_arrayElimCell_16 1) v_arrayElimCell_14) 0)) (and (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)))) .cse4 .cse0) (not (= (select |c_#valid| v_arrayElimCell_16) 0))))) is different from false [2022-02-20 16:51:32,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:51:32,303 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-02-20 16:51:32,303 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 121 treesize of output 1 [2022-02-20 16:51:32,305 INFO L290 TraceCheckUtils]: 20: Hoare triple {2017#false} assume !false; {2017#false} is VALID [2022-02-20 16:51:32,305 INFO L290 TraceCheckUtils]: 19: Hoare triple {2023#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} assume !(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {2017#false} is VALID [2022-02-20 16:51:32,305 INFO L290 TraceCheckUtils]: 18: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2023#(= ~unnamed1~0~BLACK |ULTIMATE.start_main_#t~mem13#1|)} is VALID [2022-02-20 16:51:32,306 INFO L290 TraceCheckUtils]: 17: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} goto; {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:32,306 INFO L290 TraceCheckUtils]: 16: Hoare triple {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |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); {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:32,306 INFO L290 TraceCheckUtils]: 15: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} 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; {2022#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:32,307 INFO L290 TraceCheckUtils]: 14: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,307 INFO L290 TraceCheckUtils]: 13: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,307 INFO L290 TraceCheckUtils]: 12: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} goto; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,308 INFO L290 TraceCheckUtils]: 11: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,308 INFO L290 TraceCheckUtils]: 10: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} goto; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,308 INFO L290 TraceCheckUtils]: 9: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !!(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,308 INFO L290 TraceCheckUtils]: 8: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,309 INFO L290 TraceCheckUtils]: 7: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} goto; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,309 INFO L290 TraceCheckUtils]: 6: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} assume !!(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,309 INFO L290 TraceCheckUtils]: 5: Hoare triple {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,476 INFO L290 TraceCheckUtils]: 4: Hoare triple {2138#(forall ((v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int))) (or (and (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8))) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_14))) (and (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_14) (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~unnamed1~0~BLACK (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8))))) (not (= (select |#valid| v_arrayElimCell_14) 0))))} assume !(0 != main_#t~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;call write~$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, 8 + main_~end~0#1.offset, 4); {2041#(= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))} is VALID [2022-02-20 16:51:32,483 WARN L290 TraceCheckUtils]: 3: Hoare triple {2142#(forall ((v_arrayElimCell_17 Int) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int)) (v_arrayElimCell_16 Int) (v_ArrVal_923 Int)) (or (and (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~unnamed1~0~BLACK (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))) (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= v_arrayElimCell_17 v_arrayElimCell_14)) (and (or (not (= v_arrayElimCell_17 v_arrayElimCell_14)) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (or (and (= (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_923)) v_arrayElimCell_16 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (and (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= ~unnamed1~0~BLACK (select (select (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))))) (not (= (select |#valid| v_arrayElimCell_16) 0)) (not (= (select (store |#valid| v_arrayElimCell_16 1) v_arrayElimCell_14) 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(12);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$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#1.offset;call write~$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~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {2138#(forall ((v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int))) (or (and (= ~unnamed1~0~BLACK (select (select (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8))) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_14))) (and (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_14) (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~unnamed1~0~BLACK (select (select (store (store (store |#memory_int| |ULTIMATE.start_main_~end~0#1.base| v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8))))) (not (= (select |#valid| v_arrayElimCell_14) 0))))} is UNKNOWN [2022-02-20 16:51:32,487 WARN L290 TraceCheckUtils]: 2: Hoare triple {2142#(forall ((v_arrayElimCell_17 Int) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int)) (v_arrayElimCell_16 Int) (v_ArrVal_923 Int)) (or (and (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~unnamed1~0~BLACK (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))) (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= v_arrayElimCell_17 v_arrayElimCell_14)) (and (or (not (= v_arrayElimCell_17 v_arrayElimCell_14)) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (or (and (= (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_923)) v_arrayElimCell_16 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (and (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= ~unnamed1~0~BLACK (select (select (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))))) (not (= (select |#valid| v_arrayElimCell_16) 0)) (not (= (select (store |#valid| v_arrayElimCell_16 1) v_arrayElimCell_14) 0))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2142#(forall ((v_arrayElimCell_17 Int) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int)) (v_arrayElimCell_16 Int) (v_ArrVal_923 Int)) (or (and (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~unnamed1~0~BLACK (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))) (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= v_arrayElimCell_17 v_arrayElimCell_14)) (and (or (not (= v_arrayElimCell_17 v_arrayElimCell_14)) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (or (and (= (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_923)) v_arrayElimCell_16 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (and (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= ~unnamed1~0~BLACK (select (select (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))))) (not (= (select |#valid| v_arrayElimCell_16) 0)) (not (= (select (store |#valid| v_arrayElimCell_16 1) v_arrayElimCell_14) 0))))} is UNKNOWN [2022-02-20 16:51:32,489 INFO L290 TraceCheckUtils]: 1: Hoare triple {2016#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + 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; {2142#(forall ((v_arrayElimCell_17 Int) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (v_arrayElimCell_14 Int) (v_ArrVal_939 (Array Int Int)) (v_arrayElimCell_16 Int) (v_ArrVal_923 Int)) (or (and (forall ((v_ArrVal_933 (Array Int Int)) (v_arrayElimCell_15 Int)) (= ~unnamed1~0~BLACK (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_933) v_arrayElimCell_15 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))) (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= v_arrayElimCell_17 v_arrayElimCell_14)) (and (or (not (= v_arrayElimCell_17 v_arrayElimCell_14)) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (or (and (= (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_923)) v_arrayElimCell_16 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)) ~unnamed1~0~BLACK) (not (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16))) (and (= |ULTIMATE.start_main_~end~0#1.base| v_arrayElimCell_16) (= ~unnamed1~0~BLACK (select (select (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_923)) v_arrayElimCell_16 v_ArrVal_925) v_arrayElimCell_17 v_ArrVal_936) v_arrayElimCell_14 v_ArrVal_939) |ULTIMATE.start_main_~list~0#1.base|) (+ |ULTIMATE.start_main_~list~0#1.offset| 8)))))) (not (= (select |#valid| v_arrayElimCell_16) 0)) (not (= (select (store |#valid| v_arrayElimCell_16 1) v_arrayElimCell_14) 0))))} is VALID [2022-02-20 16:51:32,489 INFO L290 TraceCheckUtils]: 0: Hoare triple {2016#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); {2016#true} is VALID [2022-02-20 16:51:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-02-20 16:51:32,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471652356] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 16:51:32,490 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 16:51:32,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2022-02-20 16:51:32,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980857140] [2022-02-20 16:51:32,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 16:51:32,491 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 21 [2022-02-20 16:51:32,491 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:51:32,491 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 16:51:32,780 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 39 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-02-20 16:51:32,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-20 16:51:32,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:51:32,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-20 16:51:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=101, Unknown=1, NotChecked=20, Total=156 [2022-02-20 16:51:32,781 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 16:51:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:33,330 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-02-20 16:51:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 16:51:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 21 [2022-02-20 16:51:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:51:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 16:51:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2022-02-20 16:51:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 16:51:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2022-02-20 16:51:33,351 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 53 transitions. [2022-02-20 16:51:33,398 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:51:33,399 INFO L225 Difference]: With dead ends: 65 [2022-02-20 16:51:33,399 INFO L226 Difference]: Without dead ends: 63 [2022-02-20 16:51:33,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=172, Unknown=2, NotChecked=28, Total=272 [2022-02-20 16:51:33,400 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 93 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-20 16:51:33,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 92 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 90 Invalid, 0 Unknown, 63 Unchecked, 0.2s Time] [2022-02-20 16:51:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-02-20 16:51:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 35. [2022-02-20 16:51:33,403 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:51:33,403 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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 16:51:33,403 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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 16:51:33,403 INFO L87 Difference]: Start difference. First operand 63 states. Second operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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 16:51:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:33,404 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-02-20 16:51:33,404 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2022-02-20 16:51:33,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:33,405 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:33,405 INFO L74 IsIncluded]: Start isIncluded. First operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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 63 states. [2022-02-20 16:51:33,405 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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 63 states. [2022-02-20 16:51:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:51:33,406 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-02-20 16:51:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2022-02-20 16:51:33,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:51:33,406 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:51:33,406 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:51:33,407 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:51:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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 16:51:33,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-02-20 16:51:33,407 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2022-02-20 16:51:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:51:33,408 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-02-20 16:51:33,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 16:51:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-02-20 16:51:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-02-20 16:51:33,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:51:33,408 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:51:33,427 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 16:51:33,627 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,SelfDestructingSolverStorable8 [2022-02-20 16:51:33,627 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-20 16:51:33,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:51:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1438350182, now seen corresponding path program 1 times [2022-02-20 16:51:33,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:51:33,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716643817] [2022-02-20 16:51:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:51:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:33,798 INFO L290 TraceCheckUtils]: 0: Hoare triple {2397#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); {2397#true} is VALID [2022-02-20 16:51:33,800 INFO L290 TraceCheckUtils]: 1: Hoare triple {2397#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2399#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,801 INFO L290 TraceCheckUtils]: 2: Hoare triple {2399#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2399#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,803 INFO L290 TraceCheckUtils]: 3: Hoare triple {2399#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(12);call write~$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$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {2400#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.offset|) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,805 INFO L290 TraceCheckUtils]: 4: Hoare triple {2400#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.offset|) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (not (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|)) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume !(0 != main_#t~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,806 INFO L290 TraceCheckUtils]: 5: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,806 INFO L290 TraceCheckUtils]: 6: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume !!(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,807 INFO L290 TraceCheckUtils]: 7: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} goto; {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,807 INFO L290 TraceCheckUtils]: 8: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,808 INFO L290 TraceCheckUtils]: 9: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume !!(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,808 INFO L290 TraceCheckUtils]: 10: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} goto; {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} is VALID [2022-02-20 16:51:33,809 INFO L290 TraceCheckUtils]: 11: Hoare triple {2401#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |ULTIMATE.start_main_~null~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} is VALID [2022-02-20 16:51:33,810 INFO L290 TraceCheckUtils]: 12: Hoare triple {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} goto; {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} is VALID [2022-02-20 16:51:33,810 INFO L290 TraceCheckUtils]: 13: Hoare triple {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} is VALID [2022-02-20 16:51:33,810 INFO L290 TraceCheckUtils]: 14: Hoare triple {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} is VALID [2022-02-20 16:51:33,811 INFO L290 TraceCheckUtils]: 15: Hoare triple {2402#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,811 INFO L290 TraceCheckUtils]: 16: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,811 INFO L290 TraceCheckUtils]: 17: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} goto; {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,812 INFO L290 TraceCheckUtils]: 18: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,812 INFO L290 TraceCheckUtils]: 19: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,812 INFO L290 TraceCheckUtils]: 20: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} goto; {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,813 INFO L290 TraceCheckUtils]: 21: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,813 INFO L290 TraceCheckUtils]: 22: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} assume !(~unnamed1~0~RED == main_#t~mem14#1);havoc main_#t~mem14#1; {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} is VALID [2022-02-20 16:51:33,814 INFO L290 TraceCheckUtils]: 23: Hoare triple {2403#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))))} call main_#t~mem17#1.base, main_#t~mem17#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem17#1.base, main_#t~mem17#1.offset;havoc main_#t~mem17#1.base, main_#t~mem17#1.offset; {2404#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:33,814 INFO L290 TraceCheckUtils]: 24: Hoare triple {2404#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2404#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} is VALID [2022-02-20 16:51:33,815 INFO L290 TraceCheckUtils]: 25: Hoare triple {2404#(not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))} assume ~unnamed1~0~RED == main_#t~mem14#1;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset; {2405#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:51:33,815 INFO L290 TraceCheckUtils]: 26: Hoare triple {2405#(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); {2398#false} is VALID [2022-02-20 16:51:33,815 INFO L290 TraceCheckUtils]: 27: Hoare triple {2398#false} assume !false; {2398#false} is VALID [2022-02-20 16:51:33,815 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 16:51:33,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:51:33,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716643817] [2022-02-20 16:51:33,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716643817] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 16:51:33,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250808203] [2022-02-20 16:51:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:51:33,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 16:51:33,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:51:33,817 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 16:51:33,818 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 16:51:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:33,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-20 16:51:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:51:33,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:51:33,997 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-20 16:51:33,997 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 16:51:34,091 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 0 case distinctions, treesize of input 36 treesize of output 27 [2022-02-20 16:51:34,102 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 0 case distinctions, treesize of input 36 treesize of output 27 [2022-02-20 16:51:34,121 INFO L356 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2022-02-20 16:51:34,121 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 78 [2022-02-20 16:51:34,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 16:51:34,129 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 0 case distinctions, treesize of input 28 treesize of output 25 [2022-02-20 16:51:34,133 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 30 treesize of output 28 [2022-02-20 16:51:34,149 INFO L356 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-02-20 16:51:34,149 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 25 treesize of output 29 [2022-02-20 16:51:34,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,282 INFO L356 Elim1Store]: treesize reduction 59, result has 25.3 percent of original size [2022-02-20 16:51:34,285 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 3 case distinctions, treesize of input 89 treesize of output 82 [2022-02-20 16:51:34,302 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 0 case distinctions, treesize of input 56 treesize of output 51 [2022-02-20 16:51:34,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 16:51:34,325 INFO L356 Elim1Store]: treesize reduction 115, result has 8.7 percent of original size [2022-02-20 16:51:34,326 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 3 case distinctions, treesize of input 104 treesize of output 92 [2022-02-20 16:51:34,330 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 66 treesize of output 60 [2022-02-20 16:51:34,350 INFO L356 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2022-02-20 16:51:34,350 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 32 treesize of output 46 [2022-02-20 16:51:34,362 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 16 treesize of output 15 [2022-02-20 16:51:34,934 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-02-20 16:51:34,934 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 82 treesize of output 53 [2022-02-20 16:51:35,065 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-20 16:51:35,065 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 52 treesize of output 23 [2022-02-20 16:51:35,090 INFO L290 TraceCheckUtils]: 0: Hoare triple {2397#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); {2397#true} is VALID [2022-02-20 16:51:35,092 INFO L290 TraceCheckUtils]: 1: Hoare triple {2397#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~mem6#1.base, main_#t~mem6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~mem9#1.base, main_#t~mem9#1.offset, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~mem11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_#t~nondet3#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1.base, main_#t~mem15#1.offset, main_#t~mem16#1, main_#t~mem17#1.base, main_#t~mem17#1.offset, main_#t~mem18#1, main_#t~mem19#1.base, main_#t~mem19#1.offset, main_#t~mem20#1.base, main_#t~mem20#1.offset, main_#t~mem21#1.base, main_#t~mem21#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(12);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~$Pointer$(0, 0, main_~null~0#1.base, main_~null~0#1.offset, 4);call write~$Pointer$(0, 0, main_~null~0#1.base, 4 + main_~null~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~null~0#1.base, 8 + main_~null~0#1.offset, 4);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(12);main_~list~0#1.base, main_~list~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, main_~list~0#1.offset, 4);call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~list~0#1.base, 4 + main_~list~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~list~0#1.base, 8 + main_~list~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2412#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,093 INFO L290 TraceCheckUtils]: 2: Hoare triple {2412#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2412#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,094 INFO L290 TraceCheckUtils]: 3: Hoare triple {2412#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnHeap(12);call write~$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$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem5#1.base, 4 + main_#t~mem5#1.offset, 4);havoc main_#t~mem5#1.base, main_#t~mem5#1.offset;call main_#t~mem6#1.base, main_#t~mem6#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem6#1.base, main_#t~mem6#1.offset;havoc main_#t~mem6#1.base, main_#t~mem6#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);assume -2147483648 <= main_#t~nondet7#1 && main_#t~nondet7#1 <= 2147483647; {2419#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 1))} is VALID [2022-02-20 16:51:35,097 INFO L290 TraceCheckUtils]: 4: Hoare triple {2419#(and (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~end~0#1.base|) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 1))} assume !(0 != main_#t~nondet7#1);havoc main_#t~nondet7#1;call write~int(~unnamed1~0~RED, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnHeap(12);call write~$Pointer$(main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~mem9#1.base, main_#t~mem9#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);call write~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, main_#t~mem9#1.base, 4 + main_#t~mem9#1.offset, 4);havoc main_#t~mem9#1.base, main_#t~mem9#1.offset;call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;call write~$Pointer$(main_~null~0#1.base, main_~null~0#1.offset, main_~end~0#1.base, main_~end~0#1.offset, 4);call write~int(~unnamed1~0~BLACK, main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,098 INFO L290 TraceCheckUtils]: 5: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} call main_#t~mem11#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,098 INFO L290 TraceCheckUtils]: 6: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(~unnamed1~0~BLACK == main_#t~mem11#1);havoc main_#t~mem11#1; {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,099 INFO L290 TraceCheckUtils]: 7: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} goto; {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,100 INFO L290 TraceCheckUtils]: 8: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4); {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,100 INFO L290 TraceCheckUtils]: 9: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(main_~null~0#1.base == main_#t~mem12#1.base && main_~null~0#1.offset == main_#t~mem12#1.offset);havoc main_#t~mem12#1.base, main_#t~mem12#1.offset; {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,101 INFO L290 TraceCheckUtils]: 10: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} goto; {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,102 INFO L290 TraceCheckUtils]: 11: Hoare triple {2423#(and (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,102 INFO L290 TraceCheckUtils]: 12: Hoare triple {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} goto; {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,103 INFO L290 TraceCheckUtils]: 13: Hoare triple {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647; {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,103 INFO L290 TraceCheckUtils]: 14: Hoare triple {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} is VALID [2022-02-20 16:51:35,104 INFO L290 TraceCheckUtils]: 15: Hoare triple {2445#(and (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) |ULTIMATE.start_main_~list~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~list~0#1.offset|)))) (= |ULTIMATE.start_main_~list~0#1.offset| 0))} main_~end~0#1.base, main_~end~0#1.offset := main_~null~0#1.base, main_~null~0#1.offset;main_~end~0#1.base, main_~end~0#1.offset := main_~list~0#1.base, main_~list~0#1.offset; {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,105 INFO L290 TraceCheckUtils]: 16: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset); {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,106 INFO L290 TraceCheckUtils]: 17: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} goto; {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,107 INFO L290 TraceCheckUtils]: 18: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} call main_#t~mem13#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,107 INFO L290 TraceCheckUtils]: 19: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !!(~unnamed1~0~BLACK == main_#t~mem13#1);havoc main_#t~mem13#1; {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,108 INFO L290 TraceCheckUtils]: 20: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} goto; {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,109 INFO L290 TraceCheckUtils]: 21: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,110 INFO L290 TraceCheckUtils]: 22: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} assume !(~unnamed1~0~RED == main_#t~mem14#1);havoc main_#t~mem14#1; {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} is VALID [2022-02-20 16:51:35,111 INFO L290 TraceCheckUtils]: 23: Hoare triple {2458#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) 0) (not (= (select (select |#memory_$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$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) 0) (not (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)))))} call main_#t~mem17#1.base, main_#t~mem17#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem17#1.base, main_#t~mem17#1.offset;havoc main_#t~mem17#1.base, main_#t~mem17#1.offset; {2483#(and (= |ULTIMATE.start_main_~end~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_41| Int)) (and (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_41|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)))))} is VALID [2022-02-20 16:51:35,112 INFO L290 TraceCheckUtils]: 24: Hoare triple {2483#(and (= |ULTIMATE.start_main_~end~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_41| Int)) (and (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_41|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)))))} assume !!(main_~null~0#1.base != main_~end~0#1.base || main_~null~0#1.offset != main_~end~0#1.offset);call main_#t~mem14#1 := read~int(main_~end~0#1.base, 8 + main_~end~0#1.offset, 4); {2483#(and (= |ULTIMATE.start_main_~end~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_41| Int)) (and (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_41|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)))))} is VALID [2022-02-20 16:51:35,112 INFO L290 TraceCheckUtils]: 25: Hoare triple {2483#(and (= |ULTIMATE.start_main_~end~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~end~0#1.base_41| Int)) (and (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0) |v_ULTIMATE.start_main_~end~0#1.base_41|)) (not (= |ULTIMATE.start_main_~null~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)) 0))) (= |ULTIMATE.start_main_~end~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~end~0#1.base_41|) 0)))))} assume ~unnamed1~0~RED == main_#t~mem14#1;havoc main_#t~mem14#1;call main_#t~mem15#1.base, main_#t~mem15#1.offset := read~$Pointer$(main_~end~0#1.base, main_~end~0#1.offset, 4);main_~end~0#1.base, main_~end~0#1.offset := main_#t~mem15#1.base, main_#t~mem15#1.offset;havoc main_#t~mem15#1.base, main_#t~mem15#1.offset; {2405#(not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))} is VALID [2022-02-20 16:51:35,113 INFO L290 TraceCheckUtils]: 26: Hoare triple {2405#(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); {2398#false} is VALID [2022-02-20 16:51:35,113 INFO L290 TraceCheckUtils]: 27: Hoare triple {2398#false} assume !false; {2398#false} is VALID [2022-02-20 16:51:35,113 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 16:51:35,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 16:51:35,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:35,352 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 125 treesize of output 125 [2022-02-20 16:51:35,363 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:35,363 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 119 treesize of output 107 [2022-02-20 16:51:35,846 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_10 (Array Int Int)) (v_ArrVal_1247 (Array Int Int)) (v_ArrVal_1253 (Array Int Int)) (v_ArrVal_1252 (Array Int Int)) (v_ArrVal_1241 (Array Int Int)) (v_arrayElimArr_9 (Array Int Int)) (v_ArrVal_1250 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_10)) (.cse0 (select v_arrayElimArr_10 |c_ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse1 (select (select (store .cse3 .cse0 v_ArrVal_1241) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= (select |c_#valid| .cse0) 0)) (and (forall ((v_ArrVal_1242 (Array Int Int))) (= |c_ULTIMATE.start_main_~null~0#1.offset| (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_9) (select v_arrayElimArr_10 |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1242) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (= |c_ULTIMATE.start_main_~null~0#1.base| .cse1)) (not (= (select v_arrayElimArr_9 |c_ULTIMATE.start_main_~end~0#1.offset|) 0)) (not (= (select (let ((.cse2 (store (store .cse3 .cse0 v_ArrVal_1247) .cse1 v_ArrVal_1250))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_9) .cse0 v_ArrVal_1252) .cse1 v_ArrVal_1253) |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 16:51:35,915 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:35,917 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 642 treesize of output 514 [2022-02-20 16:51:35,923 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:35,924 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 514 treesize of output 370 [2022-02-20 16:51:39,445 INFO L356 Elim1Store]: treesize reduction 4652, result has 29.6 percent of original size [2022-02-20 16:51:39,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 23 new quantified variables, introduced 190 case distinctions, treesize of input 1224003 treesize of output 1115910 [2022-02-20 16:51:43,611 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 16:51:43,617 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 3592607 treesize of output 3178454