./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/sll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-simple/sll2n_update_all.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 1fd0aba5d9be2820550e57012fb4e12f76fe291bb253443319d08539e5b2ba1a --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:43:51,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:43:51,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:43:51,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:43:51,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:43:51,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:43:51,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:43:51,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:43:51,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:43:51,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:43:51,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:43:51,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:43:51,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:43:51,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:43:51,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:43:51,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:43:51,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:43:51,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:43:51,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:43:51,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:43:51,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:43:51,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:43:51,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:43:51,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:43:51,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:43:51,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:43:51,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:43:51,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:43:51,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:43:51,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:43:51,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:43:51,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:43:51,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:43:51,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:43:51,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:43:51,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:43:51,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:43:51,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:43:51,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:43:51,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:43:51,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:43:51,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:43:51,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:43:51,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:43:51,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:43:51,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:43:51,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:43:51,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:43:51,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:43:51,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:43:51,729 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:43:51,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:43:51,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:43:51,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:43:51,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:43:51,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:43:51,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:43:51,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:43:51,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:43:51,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:43:51,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:43:51,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:43:51,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:43:51,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:43:51,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:43:51,732 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:43:51,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:43:51,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:43:51,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:43:51,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fd0aba5d9be2820550e57012fb4e12f76fe291bb253443319d08539e5b2ba1a [2021-12-14 13:43:51,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:43:51,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:43:51,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:43:51,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:43:51,928 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:43:51,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2n_update_all.i [2021-12-14 13:43:51,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/741afeab2/f5f0248d174844aca2d3d5ab1ac8e4b2/FLAG09d5768e9 [2021-12-14 13:43:52,330 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:43:52,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_update_all.i [2021-12-14 13:43:52,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/741afeab2/f5f0248d174844aca2d3d5ab1ac8e4b2/FLAG09d5768e9 [2021-12-14 13:43:52,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/741afeab2/f5f0248d174844aca2d3d5ab1ac8e4b2 [2021-12-14 13:43:52,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:43:52,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:43:52,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:43:52,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:43:52,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:43:52,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:43:52" (1/1) ... [2021-12-14 13:43:52,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb34251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:52, skipping insertion in model container [2021-12-14 13:43:52,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:43:52" (1/1) ... [2021-12-14 13:43:52,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:43:52,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:43:52,971 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/list-simple/sll2n_update_all.i[24218,24231] [2021-12-14 13:43:52,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:43:52,977 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:43:53,006 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/list-simple/sll2n_update_all.i[24218,24231] [2021-12-14 13:43:53,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:43:53,023 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:43:53,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53 WrapperNode [2021-12-14 13:43:53,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:43:53,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:43:53,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:43:53,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:43:53,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,056 INFO L137 Inliner]: procedures = 126, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2021-12-14 13:43:53,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:43:53,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:43:53,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:43:53,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:43:53,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:43:53,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:43:53,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:43:53,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:43:53,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (1/1) ... [2021-12-14 13:43:53,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:43:53,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:53,126 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) [2021-12-14 13:43:53,139 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 [2021-12-14 13:43:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 13:43:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 13:43:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 13:43:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:43:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 13:43:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 13:43:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 13:43:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 13:43:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:43:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:43:53,257 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:43:53,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:43:53,382 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:43:53,386 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:43:53,387 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-14 13:43:53,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:43:53 BoogieIcfgContainer [2021-12-14 13:43:53,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:43:53,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:43:53,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:43:53,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:43:53,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:43:52" (1/3) ... [2021-12-14 13:43:53,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186542f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:43:53, skipping insertion in model container [2021-12-14 13:43:53,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:43:53" (2/3) ... [2021-12-14 13:43:53,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186542f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:43:53, skipping insertion in model container [2021-12-14 13:43:53,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:43:53" (3/3) ... [2021-12-14 13:43:53,398 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2n_update_all.i [2021-12-14 13:43:53,402 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:43:53,402 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:43:53,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:43:53,435 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 [2021-12-14 13:43:53,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:43:53,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:53,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-14 13:43:53,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:53,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:53,448 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash -204150994, now seen corresponding path program 1 times [2021-12-14 13:43:53,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:53,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802323530] [2021-12-14 13:43:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:53,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:53,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:53,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802323530] [2021-12-14 13:43:53,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802323530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:43:53,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:43:53,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 13:43:53,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773309137] [2021-12-14 13:43:53,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:43:53,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 13:43:53,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:53,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 13:43:53,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 13:43:53,590 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 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 6.5) internal successors, (13), 2 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) [2021-12-14 13:43:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:53,606 INFO L93 Difference]: Finished difference Result 52 states and 75 transitions. [2021-12-14 13:43:53,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 13:43:53,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2021-12-14 13:43:53,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:53,612 INFO L225 Difference]: With dead ends: 52 [2021-12-14 13:43:53,612 INFO L226 Difference]: Without dead ends: 23 [2021-12-14 13:43:53,614 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 [2021-12-14 13:43:53,617 INFO L933 BasicCegarLoop]: 36 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, 36 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 [2021-12-14 13:43:53,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-14 13:43:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-14 13:43:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-14 13:43:53,639 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 13 [2021-12-14 13:43:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:53,640 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-14 13:43:53,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2021-12-14 13:43:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-14 13:43:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-14 13:43:53,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:53,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:53,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 13:43:53,649 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:53,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1517700322, now seen corresponding path program 1 times [2021-12-14 13:43:53,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:53,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793240188] [2021-12-14 13:43:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:53,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:53,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:53,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793240188] [2021-12-14 13:43:53,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793240188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:43:53,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:43:53,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 13:43:53,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372890499] [2021-12-14 13:43:53,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:43:53,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 13:43:53,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 13:43:53,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 13:43:53,698 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-12-14 13:43:53,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:53,719 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2021-12-14 13:43:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 13:43:53,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2021-12-14 13:43:53,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:53,721 INFO L225 Difference]: With dead ends: 44 [2021-12-14 13:43:53,721 INFO L226 Difference]: Without dead ends: 28 [2021-12-14 13:43:53,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 13:43:53,723 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:53,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:53,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-14 13:43:53,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-12-14 13:43:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-14 13:43:53,730 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2021-12-14 13:43:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:53,731 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-14 13:43:53,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-12-14 13:43:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-12-14 13:43:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-14 13:43:53,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:53,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:53,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 13:43:53,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:53,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:53,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1110902602, now seen corresponding path program 1 times [2021-12-14 13:43:53,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:53,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42339587] [2021-12-14 13:43:53,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:53,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:53,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42339587] [2021-12-14 13:43:53,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42339587] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:53,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112932889] [2021-12-14 13:43:53,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:53,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:53,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:53,816 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) [2021-12-14 13:43:53,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 13:43:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:53,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 13:43:53,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:53,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:43:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:54,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112932889] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:43:54,052 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:43:54,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2021-12-14 13:43:54,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072972506] [2021-12-14 13:43:54,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:43:54,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 13:43:54,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:54,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 13:43:54,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-14 13:43:54,056 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:54,074 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-12-14 13:43:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 13:43:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 18 [2021-12-14 13:43:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:54,075 INFO L225 Difference]: With dead ends: 45 [2021-12-14 13:43:54,075 INFO L226 Difference]: Without dead ends: 29 [2021-12-14 13:43:54,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-14 13:43:54,076 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:54,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 71 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-14 13:43:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-14 13:43:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-12-14 13:43:54,080 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18 [2021-12-14 13:43:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:54,080 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-12-14 13:43:54,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,080 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-12-14 13:43:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 13:43:54,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:54,081 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:54,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 13:43:54,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:54,301 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:54,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash 266893854, now seen corresponding path program 2 times [2021-12-14 13:43:54,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:54,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22685822] [2021-12-14 13:43:54,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:54,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:54,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:54,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22685822] [2021-12-14 13:43:54,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22685822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:43:54,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:43:54,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 13:43:54,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481199658] [2021-12-14 13:43:54,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:43:54,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 13:43:54,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:54,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 13:43:54,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 13:43:54,373 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:54,394 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2021-12-14 13:43:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 13:43:54,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-14 13:43:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:54,396 INFO L225 Difference]: With dead ends: 51 [2021-12-14 13:43:54,397 INFO L226 Difference]: Without dead ends: 42 [2021-12-14 13:43:54,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 13:43:54,398 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:54,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-14 13:43:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-12-14 13:43:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-12-14 13:43:54,405 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 23 [2021-12-14 13:43:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:54,405 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-12-14 13:43:54,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-12-14 13:43:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-14 13:43:54,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:54,406 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:54,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 13:43:54,406 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1444962716, now seen corresponding path program 1 times [2021-12-14 13:43:54,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:54,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67109015] [2021-12-14 13:43:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:54,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:54,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67109015] [2021-12-14 13:43:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67109015] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:54,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885245258] [2021-12-14 13:43:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:54,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:54,492 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) [2021-12-14 13:43:54,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 13:43:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:54,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 13:43:54,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:54,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:43:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:54,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885245258] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:43:54,785 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:43:54,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-14 13:43:54,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169562818] [2021-12-14 13:43:54,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:43:54,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 13:43:54,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:54,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 13:43:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-14 13:43:54,792 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:54,826 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2021-12-14 13:43:54,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 13:43:54,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 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 28 [2021-12-14 13:43:54,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:54,827 INFO L225 Difference]: With dead ends: 53 [2021-12-14 13:43:54,827 INFO L226 Difference]: Without dead ends: 44 [2021-12-14 13:43:54,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-14 13:43:54,828 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 58 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:54,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 74 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:54,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-14 13:43:54,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2021-12-14 13:43:54,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 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) [2021-12-14 13:43:54,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-12-14 13:43:54,832 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 28 [2021-12-14 13:43:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:54,832 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-12-14 13:43:54,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-12-14 13:43:54,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-14 13:43:54,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:54,833 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:54,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 13:43:55,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:55,052 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1623423198, now seen corresponding path program 2 times [2021-12-14 13:43:55,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:55,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920258524] [2021-12-14 13:43:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:55,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:55,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:55,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920258524] [2021-12-14 13:43:55,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920258524] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:55,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690408506] [2021-12-14 13:43:55,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 13:43:55,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:55,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:55,116 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) [2021-12-14 13:43:55,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 13:43:55,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 13:43:55,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 13:43:55,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 13:43:55,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:55,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:43:55,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:55,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690408506] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:43:55,312 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:43:55,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2021-12-14 13:43:55,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15531805] [2021-12-14 13:43:55,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:43:55,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 13:43:55,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:55,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 13:43:55,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:43:55,317 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:55,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:55,345 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2021-12-14 13:43:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 13:43:55,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-12-14 13:43:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:55,346 INFO L225 Difference]: With dead ends: 58 [2021-12-14 13:43:55,346 INFO L226 Difference]: Without dead ends: 44 [2021-12-14 13:43:55,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:43:55,348 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 33 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:55,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 98 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:55,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-14 13:43:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2021-12-14 13:43:55,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 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) [2021-12-14 13:43:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-12-14 13:43:55,357 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 33 [2021-12-14 13:43:55,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:55,357 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-12-14 13:43:55,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2021-12-14 13:43:55,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-14 13:43:55,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:55,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:55,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-14 13:43:55,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:55,567 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:55,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1284207405, now seen corresponding path program 1 times [2021-12-14 13:43:55,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:55,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463942035] [2021-12-14 13:43:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:55,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:55,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463942035] [2021-12-14 13:43:55,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463942035] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364268614] [2021-12-14 13:43:55,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:55,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:55,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:55,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:43:55,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 13:43:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:55,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 83 conjunts are in the unsatisfiable core [2021-12-14 13:43:55,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:56,020 INFO L388 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 6 treesize of output 5 [2021-12-14 13:43:56,108 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 13:43:56,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 13:43:56,176 INFO L388 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-14 13:43:56,353 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-14 13:43:56,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2021-12-14 13:43:56,361 INFO L388 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 11 treesize of output 7 [2021-12-14 13:43:56,454 INFO L388 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 20 treesize of output 8 [2021-12-14 13:43:56,508 INFO L388 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 14 treesize of output 16 [2021-12-14 13:43:56,623 INFO L388 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 [2021-12-14 13:43:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:43:56,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:43:56,774 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_356 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_356) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_356 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_356) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2021-12-14 13:43:56,809 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_356 (Array Int Int))) (<= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) (+ 4 |c_ULTIMATE.start_sll_update_at_~head#1.offset|)) v_ArrVal_356) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_356 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) (+ 4 |c_ULTIMATE.start_sll_update_at_~head#1.offset|)) v_ArrVal_356) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2021-12-14 13:43:56,818 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_356 (Array Int Int))) (<= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_356) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_356 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_356) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2021-12-14 13:43:56,848 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:43:56,848 INFO L388 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 32 treesize of output 33 [2021-12-14 13:43:56,855 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:43:56,855 INFO L388 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 58 treesize of output 61 [2021-12-14 13:43:56,869 INFO L388 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 23 treesize of output 21 [2021-12-14 13:43:56,926 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:43:56,927 INFO L388 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 32 treesize of output 33 [2021-12-14 13:43:56,930 INFO L388 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2021-12-14 13:43:56,934 INFO L388 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 23 treesize of output 21 [2021-12-14 13:43:57,112 INFO L388 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 18 treesize of output 16 [2021-12-14 13:43:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-12-14 13:43:57,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364268614] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:43:57,248 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:43:57,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 19] total 51 [2021-12-14 13:43:57,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320651841] [2021-12-14 13:43:57,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:43:57,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-12-14 13:43:57,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-12-14 13:43:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=2102, Unknown=3, NotChecked=282, Total=2550 [2021-12-14 13:43:57,250 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 51 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:58,169 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2021-12-14 13:43:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 13:43:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 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 34 [2021-12-14 13:43:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:58,171 INFO L225 Difference]: With dead ends: 75 [2021-12-14 13:43:58,171 INFO L226 Difference]: Without dead ends: 73 [2021-12-14 13:43:58,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=505, Invalid=4060, Unknown=3, NotChecked=402, Total=4970 [2021-12-14 13:43:58,173 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 158 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:58,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 373 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 563 Invalid, 0 Unknown, 260 Unchecked, 0.3s Time] [2021-12-14 13:43:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-14 13:43:58,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2021-12-14 13:43:58,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 52 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:58,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2021-12-14 13:43:58,178 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 34 [2021-12-14 13:43:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:58,178 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-12-14 13:43:58,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2021-12-14 13:43:58,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-14 13:43:58,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:58,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:58,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 13:43:58,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:58,379 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1207377995, now seen corresponding path program 1 times [2021-12-14 13:43:58,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:58,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656911801] [2021-12-14 13:43:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:58,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 13:43:58,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:58,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656911801] [2021-12-14 13:43:58,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656911801] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:43:58,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:43:58,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 13:43:58,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082676501] [2021-12-14 13:43:58,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:43:58,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 13:43:58,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 13:43:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 13:43:58,418 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:58,437 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2021-12-14 13:43:58,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 13:43:58,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-14 13:43:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:58,438 INFO L225 Difference]: With dead ends: 70 [2021-12-14 13:43:58,438 INFO L226 Difference]: Without dead ends: 62 [2021-12-14 13:43:58,438 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 [2021-12-14 13:43:58,439 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 18 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:58,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-14 13:43:58,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2021-12-14 13:43:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1666666666666667) 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) [2021-12-14 13:43:58,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2021-12-14 13:43:58,452 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 35 [2021-12-14 13:43:58,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:58,453 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2021-12-14 13:43:58,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2021-12-14 13:43:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-14 13:43:58,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:58,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:58,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 13:43:58,456 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash -641547586, now seen corresponding path program 2 times [2021-12-14 13:43:58,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:58,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587182596] [2021-12-14 13:43:58,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:58,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:58,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:58,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587182596] [2021-12-14 13:43:58,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587182596] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:58,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223971867] [2021-12-14 13:43:58,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 13:43:58,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:58,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:58,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:43:58,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 13:43:58,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 13:43:58,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 13:43:58,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 13:43:58,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:58,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:43:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 13:43:58,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223971867] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:43:58,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:43:58,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2021-12-14 13:43:58,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132610182] [2021-12-14 13:43:58,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:43:58,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 13:43:58,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:58,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 13:43:58,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-14 13:43:58,682 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 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) [2021-12-14 13:43:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:58,719 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2021-12-14 13:43:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 13:43:58,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 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) Word has length 35 [2021-12-14 13:43:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:58,720 INFO L225 Difference]: With dead ends: 86 [2021-12-14 13:43:58,720 INFO L226 Difference]: Without dead ends: 64 [2021-12-14 13:43:58,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-12-14 13:43:58,720 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 103 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:58,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 72 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-14 13:43:58,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2021-12-14 13:43:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2021-12-14 13:43:58,729 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 35 [2021-12-14 13:43:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:58,729 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2021-12-14 13:43:58,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 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) [2021-12-14 13:43:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-12-14 13:43:58,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-14 13:43:58,731 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:58,731 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:58,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 13:43:58,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:58,935 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:58,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:58,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2028742216, now seen corresponding path program 1 times [2021-12-14 13:43:58,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:58,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620054034] [2021-12-14 13:43:58,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:58,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 13:43:58,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:58,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620054034] [2021-12-14 13:43:58,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620054034] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:58,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711995784] [2021-12-14 13:43:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:58,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:58,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:58,971 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:43:58,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 13:43:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:59,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 13:43:59,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 13:43:59,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:43:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 13:43:59,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711995784] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:43:59,150 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:43:59,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-12-14 13:43:59,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576782746] [2021-12-14 13:43:59,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:43:59,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 13:43:59,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 13:43:59,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 13:43:59,156 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:59,178 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2021-12-14 13:43:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 13:43:59,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 40 [2021-12-14 13:43:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:59,178 INFO L225 Difference]: With dead ends: 65 [2021-12-14 13:43:59,178 INFO L226 Difference]: Without dead ends: 57 [2021-12-14 13:43:59,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:43:59,179 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:59,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 93 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-12-14 13:43:59,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2021-12-14 13:43:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.12) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2021-12-14 13:43:59,183 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 40 [2021-12-14 13:43:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:59,184 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2021-12-14 13:43:59,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:59,184 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2021-12-14 13:43:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-14 13:43:59,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:59,184 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:59,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 13:43:59,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:59,399 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:59,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:59,400 INFO L85 PathProgramCache]: Analyzing trace with hash -955427842, now seen corresponding path program 3 times [2021-12-14 13:43:59,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:59,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142848394] [2021-12-14 13:43:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:59,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:43:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 13:43:59,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:43:59,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142848394] [2021-12-14 13:43:59,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142848394] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:43:59,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148043781] [2021-12-14 13:43:59,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 13:43:59,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:59,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:43:59,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:43:59,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 13:43:59,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-14 13:43:59,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 13:43:59,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 13:43:59,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:43:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 13:43:59,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 13:43:59,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148043781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:43:59,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 13:43:59,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-12-14 13:43:59,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309795238] [2021-12-14 13:43:59,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:43:59,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 13:43:59,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:43:59,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 13:43:59,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-12-14 13:43:59,714 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:43:59,729 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2021-12-14 13:43:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 13:43:59,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 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 40 [2021-12-14 13:43:59,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:43:59,730 INFO L225 Difference]: With dead ends: 62 [2021-12-14 13:43:59,730 INFO L226 Difference]: Without dead ends: 42 [2021-12-14 13:43:59,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-12-14 13:43:59,730 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:43:59,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 55 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:43:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-14 13:43:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-14 13:43:59,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.048780487804878) internal successors, (43), 41 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-12-14 13:43:59,734 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 40 [2021-12-14 13:43:59,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:43:59,734 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-12-14 13:43:59,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:43:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-12-14 13:43:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-14 13:43:59,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:43:59,735 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:43:59,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 13:43:59,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:43:59,945 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:43:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:43:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1585154848, now seen corresponding path program 1 times [2021-12-14 13:43:59,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:43:59,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764168] [2021-12-14 13:43:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:43:59,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:43:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:44:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:44:00,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:44:00,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764168] [2021-12-14 13:44:00,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764168] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:44:00,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658050000] [2021-12-14 13:44:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:44:00,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:44:00,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:44:00,359 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:44:00,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 13:44:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:44:00,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 91 conjunts are in the unsatisfiable core [2021-12-14 13:44:00,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:44:00,463 INFO L388 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 6 treesize of output 5 [2021-12-14 13:44:00,492 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 13:44:00,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 13:44:00,553 INFO L388 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-14 13:44:00,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 13:44:00,679 INFO L388 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 22 treesize of output 21 [2021-12-14 13:44:00,683 INFO L388 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 6 treesize of output 5 [2021-12-14 13:44:00,832 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-14 13:44:00,832 INFO L388 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 1 case distinctions, treesize of input 66 treesize of output 63 [2021-12-14 13:44:00,835 INFO L388 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2021-12-14 13:44:00,859 INFO L388 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 34 treesize of output 36 [2021-12-14 13:44:01,030 INFO L388 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 39 treesize of output 21 [2021-12-14 13:44:01,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 11 [2021-12-14 13:44:01,054 INFO L388 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 22 treesize of output 10 [2021-12-14 13:44:01,081 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:44:01,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:44:01,297 INFO L388 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 86 treesize of output 64 [2021-12-14 13:44:01,315 INFO L388 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 86 treesize of output 64 [2021-12-14 13:44:01,330 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~len~0#1| 1))) (and (forall ((v_ArrVal_810 (Array Int Int))) (= |c_ULTIMATE.start_sll_update_at_~head#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (<= .cse0 |c_ULTIMATE.start_sll_update_at_~data#1|) (forall ((v_ArrVal_807 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_807) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_sll_update_at_~head#1.offset|)) (<= |c_ULTIMATE.start_sll_update_at_~data#1| .cse0))) is different from false [2021-12-14 13:44:01,362 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~len~0#1| 1))) (and (<= .cse0 |c_ULTIMATE.start_sll_update_at_~data#1|) (forall ((v_ArrVal_807 (Array Int Int))) (let ((.cse1 (+ 4 |c_ULTIMATE.start_sll_update_at_~head#1.offset|))) (= (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) .cse1) v_ArrVal_807) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_update_at_~head#1.base|) .cse1)))) (<= |c_ULTIMATE.start_sll_update_at_~data#1| .cse0) (forall ((v_ArrVal_810 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) (+ 4 |c_ULTIMATE.start_sll_update_at_~head#1.offset|)))) (= .cse2 (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))))))) is different from false [2021-12-14 13:44:01,374 WARN L838 $PredicateComparison]: unable to prove that (and (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_807 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (= (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) v_ArrVal_807) |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) .cse0)))) (<= |c_ULTIMATE.start_main_~i~0#1| 1) (forall ((v_ArrVal_810 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse2))) (= (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) .cse1))))) is different from false [2021-12-14 13:44:01,383 WARN L838 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((v_ArrVal_807 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (= (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) v_ArrVal_807) |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) .cse0)))) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_810 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse2))) (= (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) .cse1))))) is different from false [2021-12-14 13:44:01,403 INFO L388 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 254 treesize of output 230 [2021-12-14 13:44:01,408 INFO L388 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 194 treesize of output 178 [2021-12-14 13:44:01,412 INFO L388 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 162 [2021-12-14 13:44:01,471 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_806 Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) |c_ULTIMATE.start_sll_update_at_~head#1.offset| v_ArrVal_806)) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|))))) (and (<= |c_ULTIMATE.start_main_~i~0#1| 0) .cse0 (or (not (= |c_ULTIMATE.start_sll_update_at_~head#1.base| |c_ULTIMATE.start_main_~s~0#1.base|)) .cse0) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) |c_ULTIMATE.start_sll_update_at_~head#1.offset| v_ArrVal_806))) (.cse3 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~s~0#1.base|) .cse3))) (= .cse1 (select (select (store .cse2 .cse1 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) .cse3))))))) is different from false [2021-12-14 13:44:01,482 WARN L838 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((v_ArrVal_806 Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) |c_ULTIMATE.start_sll_update_at_~head#1.offset| v_ArrVal_806)) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|))) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) |c_ULTIMATE.start_sll_update_at_~head#1.offset| v_ArrVal_806))) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~s~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2)))))) is different from false [2021-12-14 13:44:03,532 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|))) (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) .cse0 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2))))) (<= |c_ULTIMATE.start_main_~i~0#1| 0) (<= 0 |c_ULTIMATE.start_main_~i~0#1|)) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) is different from false [2021-12-14 13:44:05,554 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (< |c_ULTIMATE.start_sll_create_#res#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|) (and (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_sll_create_#res#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base| .cse0) .cse1 v_ArrVal_810) |c_ULTIMATE.start_sll_create_#res#1.base|) .cse2) .cse1)))) (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_sll_create_#res#1.offset| 4)) |c_ULTIMATE.start_sll_create_#res#1.base|)))))) is different from false [2021-12-14 13:44:07,573 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base| .cse0) .cse1 v_ArrVal_810) |c_ULTIMATE.start_sll_create_~head~0#1.base|) .cse2) .cse1)))) (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_sll_create_~head~0#1.base|)))) (< |c_ULTIMATE.start_sll_create_~head~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) is different from false [2021-12-14 13:44:07,641 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:44:07,641 INFO L388 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 72 treesize of output 68 [2021-12-14 13:44:07,643 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:44:07,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:44:07,648 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:44:07,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2021-12-14 13:44:07,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 13:44:07,652 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 13:44:07,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 34 [2021-12-14 13:44:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-12-14 13:44:07,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658050000] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:44:07,738 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:44:07,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 23] total 52 [2021-12-14 13:44:07,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684609353] [2021-12-14 13:44:07,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:44:07,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-12-14 13:44:07,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:44:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-12-14 13:44:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1693, Unknown=9, NotChecked=810, Total=2652 [2021-12-14 13:44:07,739 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 52 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:44:07,918 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= (select |c_#valid| |c_ULTIMATE.start_sll_create_~head~0#1.base|) 1) (= |c_ULTIMATE.start_node_create_~temp~0#1.offset| 0) (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base| .cse0) .cse1 v_ArrVal_810) |c_ULTIMATE.start_sll_create_~head~0#1.base|) .cse2) .cse1)))) (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_sll_create_~head~0#1.base|)))) (< |c_ULTIMATE.start_sll_create_~head~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) (= |c_ULTIMATE.start_sll_create_~head~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_node_create_#res#1.base|) 1) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) 4) |c_ULTIMATE.start_sll_create_~head~0#1.base|))) is different from false [2021-12-14 13:44:07,921 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_ULTIMATE.start_sll_create_~head~0#1.base|) 1) (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base| .cse0) .cse1 v_ArrVal_810) |c_ULTIMATE.start_sll_create_~head~0#1.base|) .cse2) .cse1)))) (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_sll_create_~head~0#1.base|)))) (< |c_ULTIMATE.start_sll_create_~head~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) (= |c_ULTIMATE.start_sll_create_~head~0#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) 4) |c_ULTIMATE.start_sll_create_~head~0#1.base|))) is different from false [2021-12-14 13:44:07,923 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base| .cse0) .cse1 v_ArrVal_810) |c_ULTIMATE.start_sll_create_~head~0#1.base|) .cse2) .cse1)))) (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_sll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_sll_create_~head~0#1.base|)))) (< |c_ULTIMATE.start_sll_create_~head~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) (= |c_ULTIMATE.start_sll_create_~head~0#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_~head~0#1.base|) 4) |c_ULTIMATE.start_sll_create_~head~0#1.base|))) is different from false [2021-12-14 13:44:07,940 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_sll_create_#res#1.offset| 0) (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (< |c_ULTIMATE.start_sll_create_#res#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|) (and (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_sll_create_#res#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base| .cse0) .cse1 v_ArrVal_810) |c_ULTIMATE.start_sll_create_#res#1.base|) .cse2) .cse1)))) (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_sll_create_#res#1.offset| 4)) |c_ULTIMATE.start_sll_create_#res#1.base|)))))) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_create_#res#1.base|) 4) |c_ULTIMATE.start_sll_create_#res#1.base|))) is different from false [2021-12-14 13:44:07,943 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~i~0#1| 0) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|))) (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) .cse0 v_ArrVal_810) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2))))) (<= |c_ULTIMATE.start_main_~i~0#1| 0) (<= 0 |c_ULTIMATE.start_main_~i~0#1|)) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0)) is different from false [2021-12-14 13:44:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:44:08,618 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2021-12-14 13:44:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-14 13:44:08,619 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 52 states have internal predecessors, (105), 0 states have call successors, (0), 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 41 [2021-12-14 13:44:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:44:08,619 INFO L225 Difference]: With dead ends: 51 [2021-12-14 13:44:08,619 INFO L226 Difference]: Without dead ends: 46 [2021-12-14 13:44:08,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 49 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=331, Invalid=3017, Unknown=14, NotChecked=1750, Total=5112 [2021-12-14 13:44:08,621 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 95 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 339 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 13:44:08,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 355 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 638 Invalid, 0 Unknown, 339 Unchecked, 0.3s Time] [2021-12-14 13:44:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-14 13:44:08,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2021-12-14 13:44:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 42 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) [2021-12-14 13:44:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-12-14 13:44:08,626 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 41 [2021-12-14 13:44:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:44:08,626 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-12-14 13:44:08,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 52 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:44:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-12-14 13:44:08,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-14 13:44:08,627 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:44:08,627 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:44:08,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-14 13:44:08,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-14 13:44:08,828 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:44:08,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:44:08,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1946814136, now seen corresponding path program 2 times [2021-12-14 13:44:08,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:44:08,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844830993] [2021-12-14 13:44:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:44:08,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:44:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:44:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 13:44:08,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:44:08,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844830993] [2021-12-14 13:44:08,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844830993] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:44:08,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950292213] [2021-12-14 13:44:08,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 13:44:08,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:44:08,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:44:08,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 13:44:08,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 13:44:08,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 13:44:08,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 13:44:08,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 13:44:08,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:44:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-14 13:44:09,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:44:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-14 13:44:09,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950292213] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 13:44:09,095 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 13:44:09,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2021-12-14 13:44:09,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391249254] [2021-12-14 13:44:09,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 13:44:09,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 13:44:09,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:44:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 13:44:09,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:44:09,096 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:44:09,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:44:09,130 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2021-12-14 13:44:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 13:44:09,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 42 [2021-12-14 13:44:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:44:09,131 INFO L225 Difference]: With dead ends: 43 [2021-12-14 13:44:09,131 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 13:44:09,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-12-14 13:44:09,131 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:44:09,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 69 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:44:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 13:44:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 13:44:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:44:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 13:44:09,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-12-14 13:44:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:44:09,133 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 13:44:09,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 13:44:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 13:44:09,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 13:44:09,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 13:44:09,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-14 13:44:09,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-14 13:44:09,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-14 13:44:29,634 WARN L227 SmtUtils]: Spent 20.02s on a formula simplification. DAG size of input: 53 DAG size of output: 34 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-14 13:44:38,031 WARN L227 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 102 DAG size of output: 98 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-14 13:44:38,360 INFO L861 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2021-12-14 13:44:38,360 INFO L854 garLoopResultBuilder]: At program point L622-3(lines 622 627) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse0 (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|)) (.cse12 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse7 (= |ULTIMATE.start_main_~i~0#1| 0)) (.cse10 (select .cse0 .cse12)) (.cse9 (+ |ULTIMATE.start_main_~len~0#1| 1)) (.cse8 (select .cse3 .cse12))) (let ((.cse1 (not (= .cse8 |ULTIMATE.start_main_~s~0#1.base|))) (.cse5 (= (select (select |#memory_int| .cse8) .cse10) .cse9)) (.cse6 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse2 (<= |ULTIMATE.start_sll_update_at_~index#1| 0)) (.cse4 (let ((.cse11 (= |ULTIMATE.start_main_~len~0#1| 2))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse11) (and .cse7 .cse11))))) (or (and (<= |ULTIMATE.start_sll_get_data_at_~index#1| 0) (= |ULTIMATE.start_sll_update_at_~head#1.offset| (select .cse0 4)) (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_sll_update_at_~data#1| (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|)) (= |ULTIMATE.start_sll_update_at_~head#1.base| (select .cse3 4)) .cse4 .cse5 .cse6) (and .cse7 (= |ULTIMATE.start_sll_update_at_~head#1.base| .cse8) (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) .cse1 .cse2 (= |ULTIMATE.start_sll_update_at_~data#1| .cse9) .cse4 (= |ULTIMATE.start_sll_update_at_~head#1.offset| .cse10) .cse5 .cse6) (and .cse2 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse4))))) [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point L622-4(lines 622 627) no Hoare annotation was computed. [2021-12-14 13:44:38,360 INFO L854 garLoopResultBuilder]: At program point L581(lines 574 582) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1)) (.cse1 (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse3 (= (select |#valid| |ULTIMATE.start_node_create_#res#1.base|) 1))) (or (and (= 2 |ULTIMATE.start_sll_create_~len#1|) .cse0 .cse1 .cse2 .cse3) (and (not (= |ULTIMATE.start_node_create_~temp~0#1.base| |ULTIMATE.start_sll_create_~head~0#1.base|)) .cse0 (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1) .cse1 (<= 1 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_node_create_#res#1.offset| 0) (not (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_sll_create_~head~0#1.base|)) .cse2 .cse3))) [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point L606(lines 606 612) no Hoare annotation was computed. [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-14 13:44:38,360 INFO L861 garLoopResultBuilder]: At program point L631(lines 613 632) the Hoare annotation is: true [2021-12-14 13:44:38,360 INFO L854 garLoopResultBuilder]: At program point L590(lines 583 591) the Hoare annotation is: (and (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_sll_create_#res#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res#1.base|) 4) |ULTIMATE.start_sll_create_#res#1.base|)) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= 0 (select |#valid| |ULTIMATE.start_node_create_#res#1.base|))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) |ULTIMATE.start_sll_create_~head~0#1.base|))) [2021-12-14 13:44:38,360 INFO L854 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_update_at_~head#1.base|)) (.cse0 (= |ULTIMATE.start_sll_update_at_~data#1| (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|))) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (= |ULTIMATE.start_main_~s~0#1.offset| |ULTIMATE.start_sll_update_at_~head#1.offset|)) (.cse3 (= |ULTIMATE.start_sll_update_at_~index#1| |ULTIMATE.start_main_~i~0#1|)) (.cse4 (= |ULTIMATE.start_sll_update_at_~head#1.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) .cse0 (= |ULTIMATE.start_sll_create_#res#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res#1.base|) 4) |ULTIMATE.start_sll_create_#res#1.base|)) .cse1 .cse2 .cse3 .cse4 (not (= 0 (select |#valid| |ULTIMATE.start_node_create_#res#1.base|))) (not (= |ULTIMATE.start_sll_update_at_~head#1.base| (select .cse5 4))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) |ULTIMATE.start_sll_create_~head~0#1.base|)) .cse6) (and (= |ULTIMATE.start_sll_update_at_~head#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) 4)) (<= 1 |ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_356 (Array Int Int))) (<= (select (select (store |#memory_int| |ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_356) |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|)) (<= |ULTIMATE.start_sll_update_at_~index#1| 0) (forall ((v_ArrVal_356 (Array Int Int))) (<= |ULTIMATE.start_main_~len~0#1| (select (select (store |#memory_int| |ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_356) |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|))) .cse0 (= |ULTIMATE.start_sll_update_at_~head#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) 4)) .cse1 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse6) (and (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) (not (= (select .cse5 (+ 4 |ULTIMATE.start_sll_update_at_~head#1.offset|)) |ULTIMATE.start_main_~s~0#1.base|)) .cse0 (= |ULTIMATE.start_sll_update_at_~data#1| (+ |ULTIMATE.start_main_~len~0#1| 1)) .cse1 .cse2 .cse3 .cse4 .cse6))) [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2021-12-14 13:44:38,360 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 626) no Hoare annotation was computed. [2021-12-14 13:44:38,361 INFO L854 garLoopResultBuilder]: At program point L600-2(lines 600 603) the Hoare annotation is: (let ((.cse15 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse18 (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|)) (.cse19 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse6 (select .cse18 .cse19)) (.cse5 (+ |ULTIMATE.start_main_~len~0#1| 1)) (.cse1 (select .cse15 .cse19))) (let ((.cse9 (= |ULTIMATE.start_sll_update_at_~head#1.offset| (select .cse18 4))) (.cse0 (let ((.cse16 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse17 (<= |ULTIMATE.start_main_~i~0#1| 1))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse16 .cse17) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse16 .cse17)))) (.cse12 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse3 (not (= .cse1 |ULTIMATE.start_main_~s~0#1.base|))) (.cse4 (<= |ULTIMATE.start_sll_update_at_~index#1| 0)) (.cse13 (= |ULTIMATE.start_sll_update_at_~data#1| (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|))) (.cse14 (= |ULTIMATE.start_sll_update_at_~head#1.base| (select .cse15 4))) (.cse2 (select (select |#memory_int| |ULTIMATE.start_sll_get_data_at_~head#1.base|) |ULTIMATE.start_sll_get_data_at_~head#1.offset|)) (.cse7 (= (select (select |#memory_int| .cse1) .cse6) .cse5)) (.cse8 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_sll_update_at_~head#1.base| .cse1) (= .cse2 |ULTIMATE.start_main_~expected~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) (= 2 |ULTIMATE.start_main_~expected~0#1|) .cse3 .cse4 (= |ULTIMATE.start_sll_update_at_~data#1| .cse5) (= |ULTIMATE.start_sll_update_at_~head#1.offset| .cse6) .cse7 .cse8 (= |ULTIMATE.start_sll_get_data_at_~index#1| 0)) (let ((.cse11 (+ |ULTIMATE.start_sll_get_data_at_~head#1.offset| 4))) (let ((.cse10 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse11))) (and .cse9 (= (select (select |#memory_int| .cse10) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse11)) |ULTIMATE.start_main_~expected~0#1|) .cse0 (<= 1 |ULTIMATE.start_sll_get_data_at_~index#1|) .cse12 (<= |ULTIMATE.start_sll_get_data_at_~index#1| 1) .cse3 .cse4 (not (= |ULTIMATE.start_sll_get_data_at_~head#1.base| .cse10)) .cse13 .cse14 (= |ULTIMATE.start_sll_get_data_at_~head#1.offset| 0) .cse7 .cse8))) (and (<= |ULTIMATE.start_sll_get_data_at_~index#1| 0) .cse9 .cse0 .cse12 .cse3 .cse4 (<= |ULTIMATE.start_main_~expected~0#1| .cse2) .cse13 .cse14 (<= .cse2 |ULTIMATE.start_main_~expected~0#1|) .cse7 .cse8))))) [2021-12-14 13:44:38,361 INFO L858 garLoopResultBuilder]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2021-12-14 13:44:38,361 INFO L854 garLoopResultBuilder]: At program point L625(lines 613 632) the Hoare annotation is: false [2021-12-14 13:44:38,361 INFO L858 garLoopResultBuilder]: For program point L592(lines 592 598) no Hoare annotation was computed. [2021-12-14 13:44:38,361 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 578) no Hoare annotation was computed. [2021-12-14 13:44:38,361 INFO L858 garLoopResultBuilder]: For program point L576-1(lines 576 578) no Hoare annotation was computed. [2021-12-14 13:44:38,361 INFO L861 garLoopResultBuilder]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2021-12-14 13:44:38,361 INFO L858 garLoopResultBuilder]: For program point L618-2(lines 618 621) no Hoare annotation was computed. [2021-12-14 13:44:38,361 INFO L858 garLoopResultBuilder]: For program point L585-2(lines 585 589) no Hoare annotation was computed. [2021-12-14 13:44:38,362 INFO L854 garLoopResultBuilder]: At program point L618-3(lines 618 621) the Hoare annotation is: (let ((.cse6 (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|)) (.cse4 (<= |ULTIMATE.start_sll_update_at_~index#1| 0)) (.cse0 (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1)) (.cse1 (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1)) (.cse2 (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0)) (.cse3 (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse5 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse7 (not (= 0 (select |#valid| |ULTIMATE.start_node_create_#res#1.base|)))) (.cse8 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) |ULTIMATE.start_sll_create_~head~0#1.base|))) (.cse9 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_update_at_~data#1|) (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 (forall ((v_ArrVal_356 (Array Int Int))) (<= |ULTIMATE.start_main_~len~0#1| (select (select (store |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) (+ |ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_356) |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|))) .cse5 (= |ULTIMATE.start_main_~s~0#1.offset| |ULTIMATE.start_sll_update_at_~head#1.offset|) (<= .cse6 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_sll_update_at_~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) .cse7 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse8 .cse9) (let ((.cse13 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse10 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) .cse13)) (.cse12 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse13)) (.cse11 (+ |ULTIMATE.start_main_~len~0#1| 1))) (and (= |ULTIMATE.start_sll_update_at_~head#1.base| .cse10) (= .cse6 |ULTIMATE.start_main_~len~0#1|) (not (= .cse10 |ULTIMATE.start_main_~s~0#1.base|)) .cse4 (= |ULTIMATE.start_sll_update_at_~data#1| .cse11) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse5 (= |ULTIMATE.start_sll_update_at_~head#1.offset| .cse12) (= (select (select |#memory_int| .cse10) .cse12) .cse11) .cse9))) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_sll_create_#res#1.offset| 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res#1.base|) 4) |ULTIMATE.start_sll_create_#res#1.base|)) (forall ((|v_ULTIMATE.start_sll_update_at_~head#1.offset_20| Int)) (or (and (forall ((v_ArrVal_806 Int)) (not (= (select (store (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806) (+ |ULTIMATE.start_main_~s~0#1.offset| 4)) |ULTIMATE.start_main_~s~0#1.base|))) (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_806 Int)) (let ((.cse15 (store (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_sll_update_at_~head#1.offset_20| v_ArrVal_806)) (.cse16 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse14 (select .cse15 .cse16))) (= .cse14 (select (select (store (store |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base| .cse15) .cse14 v_ArrVal_810) |ULTIMATE.start_main_~s~0#1.base|) .cse16))))) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (< |ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_sll_update_at_~head#1.offset_20|))) .cse5 .cse7 .cse8 .cse9))) [2021-12-14 13:44:38,362 INFO L854 garLoopResultBuilder]: At program point L585-3(lines 585 589) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1)) (.cse1 (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1)) (.cse2 (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0)) (.cse3 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse4 (select |#valid| |ULTIMATE.start_node_create_#res#1.base|))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) .cse3 (not (= 0 .cse4)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) |ULTIMATE.start_sll_create_~head~0#1.base|))) (and (= 2 |ULTIMATE.start_sll_create_~len#1|) .cse3) (and .cse0 .cse1 .cse2 (<= 1 |ULTIMATE.start_sll_create_~len#1|) .cse3 (= .cse4 1)))) [2021-12-14 13:44:38,362 INFO L858 garLoopResultBuilder]: For program point L618-4(lines 618 621) no Hoare annotation was computed. [2021-12-14 13:44:38,362 INFO L858 garLoopResultBuilder]: For program point L585-4(lines 585 589) no Hoare annotation was computed. [2021-12-14 13:44:38,362 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-14 13:44:38,362 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2021-12-14 13:44:38,362 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-14 13:44:38,362 INFO L854 garLoopResultBuilder]: At program point L604(lines 599 605) the Hoare annotation is: (let ((.cse11 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse10 (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|)) (.cse12 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse6 (select .cse10 .cse12)) (.cse4 (+ |ULTIMATE.start_main_~len~0#1| 1)) (.cse0 (select .cse11 .cse12))) (let ((.cse2 (not (= .cse0 |ULTIMATE.start_main_~s~0#1.base|))) (.cse3 (<= |ULTIMATE.start_sll_update_at_~index#1| 0)) (.cse5 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse7 (<= |ULTIMATE.start_main_~i~0#1| 1)) (.cse1 (select (select |#memory_int| |ULTIMATE.start_sll_get_data_at_~head#1.base|) |ULTIMATE.start_sll_get_data_at_~head#1.offset|)) (.cse8 (= (select (select |#memory_int| .cse0) .cse6) .cse4)) (.cse9 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_sll_get_data_at_#res#1| |ULTIMATE.start_main_~expected~0#1|) (= |ULTIMATE.start_sll_update_at_~head#1.base| .cse0) (= .cse1 |ULTIMATE.start_main_~expected~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) (= 2 |ULTIMATE.start_main_~expected~0#1|) .cse2 .cse3 (= |ULTIMATE.start_sll_update_at_~data#1| .cse4) .cse5 (= |ULTIMATE.start_sll_update_at_~head#1.offset| .cse6) .cse7 .cse8 .cse9 (= |ULTIMATE.start_sll_get_data_at_~index#1| 0)) (and (= |ULTIMATE.start_sll_update_at_~head#1.offset| (select .cse10 4)) (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse2 .cse3 (<= |ULTIMATE.start_main_~expected~0#1| .cse1) (= |ULTIMATE.start_sll_update_at_~data#1| (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|)) (= |ULTIMATE.start_sll_update_at_~head#1.base| (select .cse11 4)) (<= |ULTIMATE.start_sll_get_data_at_#res#1| |ULTIMATE.start_main_~expected~0#1|) .cse5 .cse7 (<= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_sll_get_data_at_#res#1|) (<= .cse1 |ULTIMATE.start_main_~expected~0#1|) .cse8 .cse9))))) [2021-12-14 13:44:38,364 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1] [2021-12-14 13:44:38,365 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 13:44:38,372 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,379 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,379 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,379 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,379 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,380 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,380 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,380 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,380 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,381 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,382 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,382 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,382 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,384 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,385 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_810,QUANTIFIED] [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,402 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_810,QUANTIFIED] [2021-12-14 13:44:38,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,413 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,418 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,419 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:44:38 BoogieIcfgContainer [2021-12-14 13:44:38,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 13:44:38,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 13:44:38,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 13:44:38,423 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 13:44:38,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:43:53" (3/4) ... [2021-12-14 13:44:38,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 13:44:38,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-12-14 13:44:38,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-14 13:44:38,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-14 13:44:38,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 13:44:38,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && head == 0) && len == 2) && !(0 == \valid[\result])) && !(#memory_$Pointer$[head][4] == head)) || (2 == len && len == 2)) || (((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && 1 <= len) && len == 2) && \valid[\result] == 1) [2021-12-14 13:44:38,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && head == 0) && \result == 0) && !(#memory_$Pointer$[\result][4] == \result)) && len == 2) && !(0 == \valid[\result])) && !(#memory_$Pointer$[head][4] == head) [2021-12-14 13:44:38,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((len == data && 1 <= i) && \valid[temp] == 1) && \valid[head] == 1) && temp == 0) && head == 0) && index <= 0) && (forall v_ArrVal_356 : [int]int :: len <= unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4] := v_ArrVal_356][s][s])) && len == 2) && s == head) && unknown-#memory_int-unknown[s][s] <= len) && head == s) && !(0 == \valid[\result])) && i <= 1) && !(#memory_$Pointer$[head][4] == head)) && s == 0) || (((((((((head == #memory_$Pointer$[s][s + 4] && unknown-#memory_int-unknown[s][s] == len) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + 1) && 2 <= i) && len == 2) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0)) || ((((((((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && head == 0) && \result == 0) && !(#memory_$Pointer$[\result][4] == \result)) && (forall v_ULTIMATE.start_sll_update_at_~head#1.offset_20 : int :: ((((forall v_ArrVal_806 : int :: !(#memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806][s + 4] == s)) && (forall v_ArrVal_810 : [int]int, v_ArrVal_806 : int :: #memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806][s + 4] == #memory_$Pointer$[s := #memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806]][#memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806][s + 4] := v_ArrVal_810][s][s + 4])) && i <= 0) && 0 <= i) || s < v_ULTIMATE.start_sll_update_at_~head#1.offset_20)) && len == 2) && !(0 == \valid[\result])) && !(#memory_$Pointer$[head][4] == head)) && s == 0) [2021-12-14 13:44:38,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 == len && \valid[temp] == 1) && temp == 0) && len == 2) && \valid[\result] == 1) || ((((((((!(temp == head) && \valid[temp] == 1) && \valid[head] == 1) && temp == 0) && 1 <= len) && \result == 0) && !(\result == head)) && len == 2) && \valid[\result] == 1) [2021-12-14 13:44:38,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((i == 0 && \valid[temp] == 1) && \valid[head] == 1) && temp == 0) && head == 0) && data == len + i) && \result == 0) && !(#memory_$Pointer$[\result][4] == \result)) && len == 2) && s == head) && index == i) && head == s) && !(0 == \valid[\result])) && !(head == #memory_$Pointer$[head][4])) && !(#memory_$Pointer$[head][4] == head)) && s == 0) || (((((((((head == #memory_$Pointer$[s][4] && 1 <= i) && (forall v_ArrVal_356 : [int]int :: unknown-#memory_int-unknown[head := v_ArrVal_356][s][s] <= len)) && index <= 0) && (forall v_ArrVal_356 : [int]int :: len <= unknown-#memory_int-unknown[head := v_ArrVal_356][s][s])) && data == len + i) && head == #memory_$Pointer$[s][4]) && len == 2) && i <= 1) && s == 0)) || ((((((((unknown-#memory_int-unknown[s][s] == len && !(#memory_$Pointer$[head][4 + head] == s)) && data == len + i) && data == len + 1) && len == 2) && s == head) && index == i) && head == s) && s == 0) [2021-12-14 13:44:38,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((i == 0 && \result == expected) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[head][head] == expected) && unknown-#memory_int-unknown[s][s] == len) && 2 == expected) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + 1) && len == 2) && head == #memory_$Pointer$[s][s + 4]) && i <= 1) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && index == 0) || (((((((((((((head == #memory_$Pointer$[s][4] && 1 <= i) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && expected <= unknown-#memory_int-unknown[head][head]) && data == len + i) && head == #memory_$Pointer$[s][4]) && \result <= expected) && len == 2) && i <= 1) && expected <= \result) && unknown-#memory_int-unknown[head][head] <= expected) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) [2021-12-14 13:44:38,473 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 13:44:38,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 13:44:38,474 INFO L158 Benchmark]: Toolchain (without parser) took 45741.90ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 67.1MB in the beginning and 126.0MB in the end (delta: -58.9MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,474 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:44:38,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.96ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 70.0MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.19ms. Allocated memory is still 100.7MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,475 INFO L158 Benchmark]: Boogie Preprocessor took 35.27ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,475 INFO L158 Benchmark]: RCFGBuilder took 294.51ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 53.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,476 INFO L158 Benchmark]: TraceAbstraction took 45033.60ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 53.2MB in the beginning and 40.5MB in the end (delta: 12.7MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,476 INFO L158 Benchmark]: Witness Printer took 50.71ms. Allocated memory is still 155.2MB. Free memory was 40.5MB in the beginning and 126.0MB in the end (delta: -85.6MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2021-12-14 13:44:38,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.96ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 70.0MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.19ms. Allocated memory is still 100.7MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.27ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.51ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 53.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 45033.60ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 53.2MB in the beginning and 40.5MB in the end (delta: 12.7MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. * Witness Printer took 50.71ms. Allocated memory is still 155.2MB. Free memory was 40.5MB in the beginning and 126.0MB in the end (delta: -85.6MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_810,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_810,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 630]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.9s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 29.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 587 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 587 mSDsluCounter, 1450 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 599 IncrementalHoareTripleChecker+Unchecked, 1137 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1411 IncrementalHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 313 mSDtfsCounter, 1411 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 723 GetRequests, 514 SyntacticMatches, 16 SemanticMatches, 193 ConstructedPredicates, 17 IntricatePredicates, 0 DeprecatedPredicates, 1629 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=8, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 83 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 32 NumberOfFragments, 1301 HoareAnnotationTreeSize, 12 FomulaSimplifications, 4785 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 12 FomulaSimplificationsInter, 3553 FormulaSimplificationTreeSizeReductionInter, 28.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 706 NumberOfCodeBlocks, 705 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 947 ConstructedInterpolants, 26 QuantifiedInterpolants, 5750 SizeOfPredicates, 90 NumberOfNonLiveVariables, 2471 ConjunctsInSsa, 210 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 329/472 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant [2021-12-14 13:44:38,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((index <= 0 && head == #memory_$Pointer$[s][4]) && i == 1) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + i) && head == #memory_$Pointer$[s][4]) && ((1 <= i && len == 2) || (i == 0 && len == 2))) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) || (((((((((i == 0 && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[s][s] == len) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + 1) && ((1 <= i && len == 2) || (i == 0 && len == 2))) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0)) || ((index <= 0 && 2 <= i) && ((1 <= i && len == 2) || (i == 0 && len == 2))) - InvariantResult [Line: 583]: Loop Invariant [2021-12-14 13:44:38,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && head == 0) && \result == 0) && !(#memory_$Pointer$[\result][4] == \result)) && len == 2) && !(0 == \valid[\result])) && !(#memory_$Pointer$[head][4] == head) - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 599]: Loop Invariant [2021-12-14 13:44:38,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((i == 0 && \result == expected) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[head][head] == expected) && unknown-#memory_int-unknown[s][s] == len) && 2 == expected) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + 1) && len == 2) && head == #memory_$Pointer$[s][s + 4]) && i <= 1) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && index == 0) || (((((((((((((head == #memory_$Pointer$[s][4] && 1 <= i) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && expected <= unknown-#memory_int-unknown[head][head]) && data == len + i) && head == #memory_$Pointer$[s][4]) && \result <= expected) && len == 2) && i <= 1) && expected <= \result) && unknown-#memory_int-unknown[head][head] <= expected) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) - InvariantResult [Line: 585]: Loop Invariant [2021-12-14 13:44:38,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && head == 0) && len == 2) && !(0 == \valid[\result])) && !(#memory_$Pointer$[head][4] == head)) || (2 == len && len == 2)) || (((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && 1 <= len) && len == 2) && \valid[\result] == 1) - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant [2021-12-14 13:44:38,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,518 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_810,QUANTIFIED] [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_810,QUANTIFIED] [2021-12-14 13:44:38,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_806,QUANTIFIED] [2021-12-14 13:44:38,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_sll_update_at_~head#1.offset_20,QUANTIFIED] [2021-12-14 13:44:38,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((((((((((len == data && 1 <= i) && \valid[temp] == 1) && \valid[head] == 1) && temp == 0) && head == 0) && index <= 0) && (forall v_ArrVal_356 : [int]int :: len <= unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4] := v_ArrVal_356][s][s])) && len == 2) && s == head) && unknown-#memory_int-unknown[s][s] <= len) && head == s) && !(0 == \valid[\result])) && i <= 1) && !(#memory_$Pointer$[head][4] == head)) && s == 0) || (((((((((head == #memory_$Pointer$[s][s + 4] && unknown-#memory_int-unknown[s][s] == len) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + 1) && 2 <= i) && len == 2) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0)) || ((((((((((\valid[temp] == 1 && \valid[head] == 1) && temp == 0) && head == 0) && \result == 0) && !(#memory_$Pointer$[\result][4] == \result)) && (forall v_ULTIMATE.start_sll_update_at_~head#1.offset_20 : int :: ((((forall v_ArrVal_806 : int :: !(#memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806][s + 4] == s)) && (forall v_ArrVal_810 : [int]int, v_ArrVal_806 : int :: #memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806][s + 4] == #memory_$Pointer$[s := #memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806]][#memory_$Pointer$[s][v_ULTIMATE.start_sll_update_at_~head#1.offset_20 := v_ArrVal_806][s + 4] := v_ArrVal_810][s][s + 4])) && i <= 0) && 0 <= i) || s < v_ULTIMATE.start_sll_update_at_~head#1.offset_20)) && len == 2) && !(0 == \valid[\result])) && !(#memory_$Pointer$[head][4] == head)) && s == 0) - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: ((((2 == len && \valid[temp] == 1) && temp == 0) && len == 2) && \valid[\result] == 1) || ((((((((!(temp == head) && \valid[temp] == 1) && \valid[head] == 1) && temp == 0) && 1 <= len) && \result == 0) && !(\result == head)) && len == 2) && \valid[\result] == 1) - InvariantResult [Line: 600]: Loop Invariant [2021-12-14 13:44:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,529 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((((((((((((((i == 0 && len == 2) && i <= 1) || ((1 <= i && len == 2) && i <= 1)) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[head][head] == expected) && unknown-#memory_int-unknown[s][s] == len) && 2 == expected) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && data == len + 1) && head == #memory_$Pointer$[s][s + 4]) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && index == 0) || (((((((((((((head == #memory_$Pointer$[s][4] && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == expected) && (((i == 0 && len == 2) && i <= 1) || ((1 <= i && len == 2) && i <= 1))) && 1 <= index) && i == 1) && index <= 1) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && !(head == #memory_$Pointer$[head][head + 4])) && data == len + i) && head == #memory_$Pointer$[s][4]) && head == 0) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0)) || (((((((((((index <= 0 && head == #memory_$Pointer$[s][4]) && (((i == 0 && len == 2) && i <= 1) || ((1 <= i && len == 2) && i <= 1))) && i == 1) && !(#memory_$Pointer$[s][s + 4] == s)) && index <= 0) && expected <= unknown-#memory_int-unknown[head][head]) && data == len + i) && head == #memory_$Pointer$[s][4]) && unknown-#memory_int-unknown[head][head] <= expected) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) - InvariantResult [Line: 607]: Loop Invariant [2021-12-14 13:44:38,530 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,530 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,530 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,531 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,531 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,531 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,531 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_356,QUANTIFIED] [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-12-14 13:44:38,532 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((((((((((i == 0 && \valid[temp] == 1) && \valid[head] == 1) && temp == 0) && head == 0) && data == len + i) && \result == 0) && !(#memory_$Pointer$[\result][4] == \result)) && len == 2) && s == head) && index == i) && head == s) && !(0 == \valid[\result])) && !(head == #memory_$Pointer$[head][4])) && !(#memory_$Pointer$[head][4] == head)) && s == 0) || (((((((((head == #memory_$Pointer$[s][4] && 1 <= i) && (forall v_ArrVal_356 : [int]int :: unknown-#memory_int-unknown[head := v_ArrVal_356][s][s] <= len)) && index <= 0) && (forall v_ArrVal_356 : [int]int :: len <= unknown-#memory_int-unknown[head := v_ArrVal_356][s][s])) && data == len + i) && head == #memory_$Pointer$[s][4]) && len == 2) && i <= 1) && s == 0)) || ((((((((unknown-#memory_int-unknown[s][s] == len && !(#memory_$Pointer$[head][4 + head] == s)) && data == len + i) && data == len + 1) && len == 2) && s == head) && index == i) && head == s) && s == 0) RESULT: Ultimate proved your program to be correct! [2021-12-14 13:44:38,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE