./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3aee1e8d9b723b18f218b6c1185554e637930c5d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:01,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:01,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:01,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:01,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:01,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:01,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:01,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:01,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:01,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:01,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:01,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:01,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:01,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:01,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:01,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:01,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:01,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:01,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:01,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:01,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:01,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:01,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:01,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:01,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:01,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:01,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:01,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:01,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:01,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:01,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:01,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:01,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:01,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:01,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:01,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:01,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:01,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:01,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:01,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:01,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:01,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:59:01,855 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:01,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:01,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:01,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:01,856 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:01,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:01,857 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:01,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:01,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:01,858 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:01,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:59:01,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:01,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:01,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:01,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:01,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:01,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:01,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:01,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:59:01,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:01,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:01,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:59:01,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer 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(__VERIFIER_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 -> 3aee1e8d9b723b18f218b6c1185554e637930c5d [2019-10-22 08:59:01,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:01,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:01,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:01,898 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:01,899 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:01,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2019-10-22 08:59:01,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/data/4f116b4e8/3089c8ce8f1c48ce977502a3eb47ae79/FLAGf58969067 [2019-10-22 08:59:02,413 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:02,414 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2019-10-22 08:59:02,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/data/4f116b4e8/3089c8ce8f1c48ce977502a3eb47ae79/FLAGf58969067 [2019-10-22 08:59:02,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/data/4f116b4e8/3089c8ce8f1c48ce977502a3eb47ae79 [2019-10-22 08:59:02,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:02,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:02,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:02,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:02,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:02,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a43a3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02, skipping insertion in model container [2019-10-22 08:59:02,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,744 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:02,784 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:03,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:03,160 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:03,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:03,254 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:03,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03 WrapperNode [2019-10-22 08:59:03,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:03,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:03,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:03,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:03,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:03,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:03,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:03,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:03,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... [2019-10-22 08:59:03,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:03,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:03,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:03,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:03,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:59:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:59:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:59:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:03,746 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:03,746 INFO L284 CfgBuilder]: Removed 13 assume(true) statements. [2019-10-22 08:59:03,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:03 BoogieIcfgContainer [2019-10-22 08:59:03,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:03,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:03,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:03,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:03,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:02" (1/3) ... [2019-10-22 08:59:03,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22267942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:03, skipping insertion in model container [2019-10-22 08:59:03,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:03" (2/3) ... [2019-10-22 08:59:03,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22267942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:03, skipping insertion in model container [2019-10-22 08:59:03,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:03" (3/3) ... [2019-10-22 08:59:03,755 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-2.i [2019-10-22 08:59:03,764 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:03,770 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:59:03,779 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:59:03,799 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:03,800 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:59:03,800 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:03,800 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:03,800 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:03,800 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:03,800 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:03,800 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-22 08:59:03,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:59:03,822 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:03,823 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,825 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:03,832 INFO L82 PathProgramCache]: Analyzing trace with hash 889968582, now seen corresponding path program 1 times [2019-10-22 08:59:03,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:03,842 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94529180] [2019-10-22 08:59:03,842 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,842 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:03,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94529180] [2019-10-22 08:59:03,976 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:03,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:59:03,977 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143602933] [2019-10-22 08:59:03,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:59:03,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:03,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:59:03,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:59:03,996 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-10-22 08:59:04,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:04,014 INFO L93 Difference]: Finished difference Result 53 states and 84 transitions. [2019-10-22 08:59:04,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:59:04,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-10-22 08:59:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:04,024 INFO L225 Difference]: With dead ends: 53 [2019-10-22 08:59:04,024 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 08:59:04,027 INFO L600 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 [2019-10-22 08:59:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 08:59:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 08:59:04,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 08:59:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-10-22 08:59:04,058 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 6 [2019-10-22 08:59:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:04,058 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-10-22 08:59:04,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:59:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-10-22 08:59:04,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:59:04,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:04,059 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,059 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1806853233, now seen corresponding path program 1 times [2019-10-22 08:59:04,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800612703] [2019-10-22 08:59:04,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:04,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800612703] [2019-10-22 08:59:04,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:04,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:59:04,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706909475] [2019-10-22 08:59:04,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:04,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:04,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:04,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:04,130 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 4 states. [2019-10-22 08:59:04,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:04,183 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-10-22 08:59:04,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:04,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:59:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:04,184 INFO L225 Difference]: With dead ends: 31 [2019-10-22 08:59:04,184 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 08:59:04,185 INFO L600 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 [2019-10-22 08:59:04,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 08:59:04,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2019-10-22 08:59:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 08:59:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-10-22 08:59:04,188 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2019-10-22 08:59:04,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:04,189 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-10-22 08:59:04,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-10-22 08:59:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:59:04,190 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:04,190 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,190 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,190 INFO L82 PathProgramCache]: Analyzing trace with hash -856511048, now seen corresponding path program 1 times [2019-10-22 08:59:04,190 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,191 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037245405] [2019-10-22 08:59:04,191 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,191 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:04,299 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037245405] [2019-10-22 08:59:04,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:04,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:04,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361492917] [2019-10-22 08:59:04,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:04,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:04,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:04,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:04,301 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 5 states. [2019-10-22 08:59:04,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:04,401 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2019-10-22 08:59:04,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:04,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 08:59:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:04,404 INFO L225 Difference]: With dead ends: 47 [2019-10-22 08:59:04,404 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:59:04,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:59:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:59:04,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 28. [2019-10-22 08:59:04,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-22 08:59:04,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-10-22 08:59:04,412 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 10 [2019-10-22 08:59:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:04,412 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-10-22 08:59:04,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:04,413 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-10-22 08:59:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:59:04,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:04,413 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,414 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1594081566, now seen corresponding path program 1 times [2019-10-22 08:59:04,414 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971526] [2019-10-22 08:59:04,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:04,592 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971526] [2019-10-22 08:59:04,592 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843084243] [2019-10-22 08:59:04,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-22 08:59:04,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:04,704 INFO L375 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 [2019-10-22 08:59:04,705 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,720 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,725 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:59:04,725 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,736 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,736 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,737 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:24 [2019-10-22 08:59:04,783 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,784 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-10-22 08:59:04,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,832 INFO L567 ElimStorePlain]: treesize reduction 14, result has 81.1 percent of original size [2019-10-22 08:59:04,839 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:04,861 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:04,873 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 20 [2019-10-22 08:59:04,874 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,888 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,889 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,889 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:62, output treesize:27 [2019-10-22 08:59:04,938 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,939 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2019-10-22 08:59:04,940 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:04,971 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:04,979 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_23|, |v_#memory_int_24|], 4=[|v_#memory_int_26|]} [2019-10-22 08:59:04,982 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:05,007 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:05,011 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:05,032 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:05,039 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:05,062 INFO L341 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2019-10-22 08:59:05,062 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 45 [2019-10-22 08:59:05,063 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:05,084 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:05,086 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:05,087 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:80, output treesize:43 [2019-10-22 08:59:05,188 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2019-10-22 08:59:05,191 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:05,199 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:05,200 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:05,200 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:45, output treesize:3 [2019-10-22 08:59:05,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:05,203 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:05,204 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-10-22 08:59:05,204 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958551880] [2019-10-22 08:59:05,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:59:05,204 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:05,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:59:05,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:05,207 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 11 states. [2019-10-22 08:59:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:05,675 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2019-10-22 08:59:05,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:59:05,675 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2019-10-22 08:59:05,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:05,677 INFO L225 Difference]: With dead ends: 60 [2019-10-22 08:59:05,677 INFO L226 Difference]: Without dead ends: 58 [2019-10-22 08:59:05,678 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:59:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-22 08:59:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 19. [2019-10-22 08:59:05,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:59:05,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-10-22 08:59:05,682 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-10-22 08:59:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:05,682 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-10-22 08:59:05,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:59:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-10-22 08:59:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:59:05,683 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:05,683 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:05,884 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:05,884 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:05,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,884 INFO L82 PathProgramCache]: Analyzing trace with hash -839217458, now seen corresponding path program 1 times [2019-10-22 08:59:05,885 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782532326] [2019-10-22 08:59:05,885 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,885 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:05,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:05,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782532326] [2019-10-22 08:59:05,978 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:05,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:05,978 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628630417] [2019-10-22 08:59:05,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:05,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:05,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:05,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:05,980 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 5 states. [2019-10-22 08:59:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:06,024 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-10-22 08:59:06,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:06,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-10-22 08:59:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:06,025 INFO L225 Difference]: With dead ends: 35 [2019-10-22 08:59:06,025 INFO L226 Difference]: Without dead ends: 27 [2019-10-22 08:59:06,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:06,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-22 08:59:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2019-10-22 08:59:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 08:59:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-10-22 08:59:06,028 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2019-10-22 08:59:06,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:06,029 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-10-22 08:59:06,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-10-22 08:59:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:59:06,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:06,029 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:06,030 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:06,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:06,030 INFO L82 PathProgramCache]: Analyzing trace with hash -839157876, now seen corresponding path program 1 times [2019-10-22 08:59:06,030 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:06,030 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078083639] [2019-10-22 08:59:06,030 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,030 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,065 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:06,065 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:59:06,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:06 BoogieIcfgContainer [2019-10-22 08:59:06,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:06,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:06,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:06,088 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:06,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:03" (3/4) ... [2019-10-22 08:59:06,091 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:59:06,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_796c4f48-7293-4ff4-b5f7-b09cd2aefe50/bin/uautomizer/witness.graphml [2019-10-22 08:59:06,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:06,143 INFO L168 Benchmark]: Toolchain (without parser) took 3417.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 944.5 MB in the beginning and 907.6 MB in the end (delta: 36.9 MB). Peak memory consumption was 220.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,143 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:06,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -223.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,145 INFO L168 Benchmark]: Boogie Preprocessor took 28.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,151 INFO L168 Benchmark]: RCFGBuilder took 423.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,151 INFO L168 Benchmark]: TraceAbstraction took 2339.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.8 MB in the end (delta: 217.1 MB). Peak memory consumption was 217.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,152 INFO L168 Benchmark]: Witness Printer took 54.04 ms. Allocated memory is still 1.2 GB. Free memory was 910.8 MB in the beginning and 907.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:06,154 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 527.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -223.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 423.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2339.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.8 MB in the end (delta: 217.1 MB). Peak memory consumption was 217.1 MB. Max. memory is 11.5 GB. * Witness Printer took 54.04 ms. Allocated memory is still 1.2 GB. Free memory was 910.8 MB in the beginning and 907.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L995] SLL* list = malloc(sizeof(SLL)); [L996] list->next = ((void*)0) [L997] list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1028] EXPR end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR end->colour [L1032] COND FALSE !(RED == end->colour) [L1038] EXPR end->next [L1038] COND TRUE !(end->next) [L1038] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 152 SDslu, 202 SDs, 0 SdLazy, 206 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 70 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 6 QuantifiedInterpolants, 7044 SizeOfPredicates, 11 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...