./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8242c02a65c511b095f42030318aeef939254d04 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 19:35:25,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:35:25,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:35:25,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:35:25,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:35:25,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:35:25,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:35:25,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:35:25,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:35:25,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:35:25,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:35:25,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:35:25,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:35:25,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:35:25,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:35:25,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:35:25,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:35:25,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:35:25,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:35:25,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:35:25,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:35:25,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:35:25,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:35:26,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:35:26,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:35:26,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:35:26,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:35:26,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:35:26,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:35:26,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:35:26,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:35:26,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:35:26,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:35:26,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:35:26,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:35:26,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:35:26,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:35:26,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:35:26,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:35:26,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:35:26,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:35:26,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 19:35:26,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:35:26,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:35:26,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:35:26,026 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:35:26,026 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:35:26,026 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:35:26,026 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 19:35:26,026 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:35:26,027 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:35:26,027 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 19:35:26,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 19:35:26,027 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:35:26,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 19:35:26,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 19:35:26,027 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 19:35:26,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:35:26,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 19:35:26,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 19:35:26,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 19:35:26,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:35:26,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:35:26,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:35:26,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:35:26,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:35:26,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:35:26,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:35:26,031 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8242c02a65c511b095f42030318aeef939254d04 [2020-12-09 19:35:26,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:35:26,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:35:26,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:35:26,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:35:26,230 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:35:26,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-12-09 19:35:26,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/data/9958c8517/91c985a366ca4d0cbadaeca83119ed74/FLAG072f80ae3 [2020-12-09 19:35:26,632 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:35:26,632 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-12-09 19:35:26,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/data/9958c8517/91c985a366ca4d0cbadaeca83119ed74/FLAG072f80ae3 [2020-12-09 19:35:26,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/data/9958c8517/91c985a366ca4d0cbadaeca83119ed74 [2020-12-09 19:35:26,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:35:26,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:35:26,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:35:26,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:35:26,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:35:26,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@178c2b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26, skipping insertion in model container [2020-12-09 19:35:26,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:35:26,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:35:26,788 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2020-12-09 19:35:26,798 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2020-12-09 19:35:26,803 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2020-12-09 19:35:26,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:35:26,814 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 19:35:26,827 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2020-12-09 19:35:26,832 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2020-12-09 19:35:26,835 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2020-12-09 19:35:26,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:35:26,852 INFO L208 MainTranslator]: Completed translation [2020-12-09 19:35:26,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26 WrapperNode [2020-12-09 19:35:26,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:35:26,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 19:35:26,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 19:35:26,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 19:35:26,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 19:35:26,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 19:35:26,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 19:35:26,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 19:35:26,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... [2020-12-09 19:35:26,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 19:35:26,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 19:35:26,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 19:35:26,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 19:35:26,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/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 [2020-12-09 19:35:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 19:35:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 19:35:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 19:35:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 19:35:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 19:35:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 19:35:27,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:35:27,173 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 19:35:27,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:35:27 BoogieIcfgContainer [2020-12-09 19:35:27,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:35:27,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:35:27,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:35:27,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:35:27,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:35:26" (1/3) ... [2020-12-09 19:35:27,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbd5202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:35:27, skipping insertion in model container [2020-12-09 19:35:27,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:35:26" (2/3) ... [2020-12-09 19:35:27,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbd5202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:35:27, skipping insertion in model container [2020-12-09 19:35:27,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:35:27" (3/3) ... [2020-12-09 19:35:27,180 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-12-09 19:35:27,190 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:35:27,192 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 19:35:27,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 19:35:27,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:35:27,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:35:27,216 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:35:27,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:35:27,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:35:27,216 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:35:27,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:35:27,216 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:35:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-12-09 19:35:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 19:35:27,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:27,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:27,231 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:27,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:27,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1546650789, now seen corresponding path program 1 times [2020-12-09 19:35:27,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:27,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884046870] [2020-12-09 19:35:27,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:27,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884046870] [2020-12-09 19:35:27,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:35:27,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 19:35:27,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23589488] [2020-12-09 19:35:27,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:35:27,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:27,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:35:27,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:35:27,420 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-12-09 19:35:27,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:27,441 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2020-12-09 19:35:27,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:35:27,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 19:35:27,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:27,449 INFO L225 Difference]: With dead ends: 42 [2020-12-09 19:35:27,449 INFO L226 Difference]: Without dead ends: 28 [2020-12-09 19:35:27,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:35:27,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-09 19:35:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-12-09 19:35:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 19:35:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-12-09 19:35:27,473 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 8 [2020-12-09 19:35:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:27,473 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-12-09 19:35:27,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:35:27,473 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-12-09 19:35:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 19:35:27,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:27,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:27,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 19:35:27,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:27,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:27,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1412593997, now seen corresponding path program 1 times [2020-12-09 19:35:27,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:27,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363603941] [2020-12-09 19:35:27,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:27,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363603941] [2020-12-09 19:35:27,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:35:27,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:35:27,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459740742] [2020-12-09 19:35:27,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:35:27,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:27,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:35:27,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:35:27,507 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2020-12-09 19:35:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:27,539 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-12-09 19:35:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:35:27,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 19:35:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:27,540 INFO L225 Difference]: With dead ends: 53 [2020-12-09 19:35:27,541 INFO L226 Difference]: Without dead ends: 33 [2020-12-09 19:35:27,541 INFO L677 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 [2020-12-09 19:35:27,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-09 19:35:27,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2020-12-09 19:35:27,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 19:35:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-12-09 19:35:27,547 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 9 [2020-12-09 19:35:27,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:27,547 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-12-09 19:35:27,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:35:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-12-09 19:35:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 19:35:27,548 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:27,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:27,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 19:35:27,549 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:27,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1344104488, now seen corresponding path program 1 times [2020-12-09 19:35:27,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:27,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184941109] [2020-12-09 19:35:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:27,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184941109] [2020-12-09 19:35:27,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:35:27,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 19:35:27,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684227815] [2020-12-09 19:35:27,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:35:27,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:27,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:35:27,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:35:27,594 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 4 states. [2020-12-09 19:35:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:27,619 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2020-12-09 19:35:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:35:27,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-09 19:35:27,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:27,621 INFO L225 Difference]: With dead ends: 46 [2020-12-09 19:35:27,621 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 19:35:27,622 INFO L677 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 [2020-12-09 19:35:27,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 19:35:27,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2020-12-09 19:35:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-09 19:35:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-12-09 19:35:27,628 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 9 [2020-12-09 19:35:27,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:27,628 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-12-09 19:35:27,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:35:27,628 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-12-09 19:35:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 19:35:27,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:27,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:27,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 19:35:27,629 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:27,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:27,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1220471443, now seen corresponding path program 1 times [2020-12-09 19:35:27,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:27,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093368862] [2020-12-09 19:35:27,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:27,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093368862] [2020-12-09 19:35:27,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:35:27,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 19:35:27,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923756058] [2020-12-09 19:35:27,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 19:35:27,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:27,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 19:35:27,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 19:35:27,663 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 3 states. [2020-12-09 19:35:27,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:27,688 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2020-12-09 19:35:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 19:35:27,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-09 19:35:27,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:27,689 INFO L225 Difference]: With dead ends: 49 [2020-12-09 19:35:27,690 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 19:35:27,690 INFO L677 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 [2020-12-09 19:35:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 19:35:27,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-12-09 19:35:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-09 19:35:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-12-09 19:35:27,694 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2020-12-09 19:35:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:27,694 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-12-09 19:35:27,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 19:35:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-12-09 19:35:27,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 19:35:27,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:27,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:27,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 19:35:27,696 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:27,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1299008504, now seen corresponding path program 1 times [2020-12-09 19:35:27,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:27,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646096678] [2020-12-09 19:35:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:28,328 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 86 [2020-12-09 19:35:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:28,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646096678] [2020-12-09 19:35:28,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:35:28,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 19:35:28,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410524649] [2020-12-09 19:35:28,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 19:35:28,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:28,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 19:35:28,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-09 19:35:28,386 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2020-12-09 19:35:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:28,670 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2020-12-09 19:35:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 19:35:28,671 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-12-09 19:35:28,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:28,671 INFO L225 Difference]: With dead ends: 39 [2020-12-09 19:35:28,671 INFO L226 Difference]: Without dead ends: 24 [2020-12-09 19:35:28,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-12-09 19:35:28,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-09 19:35:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-09 19:35:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-09 19:35:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-09 19:35:28,677 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 15 [2020-12-09 19:35:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:28,677 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-09 19:35:28,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 19:35:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-09 19:35:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 19:35:28,678 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:28,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:28,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 19:35:28,678 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:28,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:28,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1999003900, now seen corresponding path program 1 times [2020-12-09 19:35:28,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:28,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043668971] [2020-12-09 19:35:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:28,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043668971] [2020-12-09 19:35:28,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:35:28,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 19:35:28,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666240155] [2020-12-09 19:35:28,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 19:35:28,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:28,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 19:35:28,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 19:35:28,720 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 6 states. [2020-12-09 19:35:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:28,769 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-12-09 19:35:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 19:35:28,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-09 19:35:28,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:28,771 INFO L225 Difference]: With dead ends: 37 [2020-12-09 19:35:28,771 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 19:35:28,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 19:35:28,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 19:35:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 22. [2020-12-09 19:35:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-09 19:35:28,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-12-09 19:35:28,776 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-12-09 19:35:28,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:28,776 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-12-09 19:35:28,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 19:35:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-09 19:35:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 19:35:28,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:35:28,777 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:35:28,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 19:35:28,778 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:35:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:35:28,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1488428289, now seen corresponding path program 1 times [2020-12-09 19:35:28,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:35:28,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125501049] [2020-12-09 19:35:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:35:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:28,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125501049] [2020-12-09 19:35:28,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975796516] [2020-12-09 19:35:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/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 [2020-12-09 19:35:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:35:28,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 19:35:28,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:35:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:29,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:35:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:35:29,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1881992173] [2020-12-09 19:35:29,347 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2020-12-09 19:35:29,348 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 19:35:29,352 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 19:35:29,356 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 19:35:29,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 19:35:29,672 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 19:35:29,911 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2020-12-09 19:35:30,062 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-12-09 19:35:30,194 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-12-09 19:35:30,340 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-12-09 19:35:30,490 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-12-09 19:35:30,646 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-12-09 19:35:30,827 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2020-12-09 19:35:30,995 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2020-12-09 19:35:31,200 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-12-09 19:35:31,492 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2020-12-09 19:35:31,821 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-12-09 19:35:32,158 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-12-09 19:35:32,160 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 19:35:32,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 19:35:32,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2020-12-09 19:35:32,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480391338] [2020-12-09 19:35:32,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 19:35:32,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:35:32,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 19:35:32,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2020-12-09 19:35:32,161 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 9 states. [2020-12-09 19:35:32,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:35:32,304 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-12-09 19:35:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 19:35:32,305 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-12-09 19:35:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:35:32,305 INFO L225 Difference]: With dead ends: 25 [2020-12-09 19:35:32,306 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 19:35:32,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-12-09 19:35:32,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 19:35:32,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 19:35:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 19:35:32,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 19:35:32,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-09 19:35:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:35:32,307 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 19:35:32,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 19:35:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 19:35:32,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 19:35:32,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-09 19:35:32,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 19:35:32,788 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-12-09 19:35:32,833 INFO L262 CegarLoopResult]: For program point L31(lines 31 147) no Hoare annotation was computed. [2020-12-09 19:35:32,834 INFO L262 CegarLoopResult]: For program point L60(lines 60 93) no Hoare annotation was computed. [2020-12-09 19:35:32,834 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2020-12-09 19:35:32,834 INFO L258 CegarLoopResult]: At program point L151(lines 29 152) the Hoare annotation is: false [2020-12-09 19:35:32,834 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 19:35:32,834 INFO L262 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-09 19:35:32,834 INFO L262 CegarLoopResult]: For program point L40(lines 40 139) no Hoare annotation was computed. [2020-12-09 19:35:32,834 INFO L265 CegarLoopResult]: At program point L131(lines 98 132) the Hoare annotation is: true [2020-12-09 19:35:32,834 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 19:35:32,835 INFO L258 CegarLoopResult]: At program point L156(lines 26 157) the Hoare annotation is: (or (and (let ((.cse5 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse6 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (or (let ((.cse4 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse3 (select .cse4 (+ (* ULTIMATE.start_main_~main__index1~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse6 (- 17179869184))))) (.cse2 (select .cse4 (+ (* ULTIMATE.start_main_~main__index2~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse5 (- 17179869184)))))) (let ((.cse1 (+ .cse3 (* 4294967296 (div .cse2 4294967296)))) (.cse0 (+ .cse2 (* 4294967296 (div .cse3 4294967296))))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))))) (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 .cse5)) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse6))))) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index2~0 (* (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) ULTIMATE.start_main_~main__index1~0 4294967294) 4294967296) 4294967296) 4294867297) 4294967296)) 1) ULTIMATE.start_main_~main__index1~0) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (= ULTIMATE.start_main_~main__loop_entered~0 0)) [2020-12-09 19:35:32,835 INFO L262 CegarLoopResult]: For program point L57(lines 57 133) no Hoare annotation was computed. [2020-12-09 19:35:32,835 INFO L262 CegarLoopResult]: For program point L24(lines 24 162) no Hoare annotation was computed. [2020-12-09 19:35:32,835 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-12-09 19:35:32,835 INFO L258 CegarLoopResult]: At program point L119(lines 99 128) the Hoare annotation is: (let ((.cse5 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse6 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (let ((.cse8 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse6))) (.cse9 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (.cse7 (* 4294967296 .cse5))) (or (and (or (let ((.cse4 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse3 (select .cse4 (+ (* ULTIMATE.start_main_~main__index1~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse6 (- 17179869184))))) (.cse2 (select .cse4 (+ (* ULTIMATE.start_main_~main__index2~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse5 (- 17179869184)))))) (let ((.cse1 (+ .cse3 (* 4294967296 (div .cse2 4294967296)))) (.cse0 (+ .cse2 (* 4294967296 (div .cse3 4294967296))))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))))) (<= (+ ULTIMATE.start_main_~main__index1~0 .cse7) .cse8)) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index2~0 (* (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) ULTIMATE.start_main_~main__index1~0 4294967294) 4294967296) 4294967296) 4294867297) 4294967296)) 1) ULTIMATE.start_main_~main__index1~0) .cse9) (and (<= (+ ULTIMATE.start_main_~main__index1~0 .cse7 1) .cse8) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse9 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse7 99999)))))) [2020-12-09 19:35:32,835 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 19:35:32,835 INFO L262 CegarLoopResult]: For program point L62(lines 62 88) no Hoare annotation was computed. [2020-12-09 19:35:32,835 INFO L262 CegarLoopResult]: For program point L29(lines 29 152) no Hoare annotation was computed. [2020-12-09 19:35:32,836 INFO L258 CegarLoopResult]: At program point L87(lines 62 88) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)) 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index2~0 (* (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) ULTIMATE.start_main_~main__index1~0 4294967294) 4294967296) 4294967296) 4294867297) 4294967296)) 1) ULTIMATE.start_main_~main__index1~0) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) [2020-12-09 19:35:32,836 INFO L262 CegarLoopResult]: For program point L21(lines 21 167) no Hoare annotation was computed. [2020-12-09 19:35:32,836 INFO L262 CegarLoopResult]: For program point L50(lines 50 138) no Hoare annotation was computed. [2020-12-09 19:35:32,836 INFO L258 CegarLoopResult]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse3 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~main__index1~0 .cse3 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))))) (.cse1 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (.cse2 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse3 99999)))) (or (and (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) .cse0 .cse1 .cse2) (and .cse0 (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) .cse1 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0)) .cse2)))) [2020-12-09 19:35:32,836 INFO L262 CegarLoopResult]: For program point L108(lines 108 120) no Hoare annotation was computed. [2020-12-09 19:35:32,836 INFO L262 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-12-09 19:35:32,836 INFO L262 CegarLoopResult]: For program point L71(lines 71 80) no Hoare annotation was computed. [2020-12-09 19:35:32,836 INFO L265 CegarLoopResult]: At program point L166(lines 14 168) the Hoare annotation is: true [2020-12-09 19:35:32,836 INFO L258 CegarLoopResult]: At program point L92(lines 60 93) the Hoare annotation is: false [2020-12-09 19:35:32,836 INFO L262 CegarLoopResult]: For program point L26(lines 26 157) no Hoare annotation was computed. [2020-12-09 19:35:32,837 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-12-09 19:35:32,837 INFO L258 CegarLoopResult]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~main__loop_entered~0 0) (<= ULTIMATE.start_main_~main__index2~0 (+ .cse0 99999)))) [2020-12-09 19:35:32,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:35:32 BoogieIcfgContainer [2020-12-09 19:35:32,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:35:32,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:35:32,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:35:32,856 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:35:32,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:35:27" (3/4) ... [2020-12-09 19:35:32,858 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 19:35:32,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-09 19:35:32,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 19:35:32,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:35:32,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:35:32,902 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_77b0aca2-f56a-40a4-9496-4acf6c5429d6/bin/utaipan/witness.graphml [2020-12-09 19:35:32,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:35:32,903 INFO L168 Benchmark]: Toolchain (without parser) took 6250.91 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 78.0 MB in the beginning and 53.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 16.1 GB. [2020-12-09 19:35:32,904 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 102.8 MB. Free memory is still 83.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:35:32,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.70 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 66.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 19:35:32,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.47 ms. Allocated memory is still 102.8 MB. Free memory was 66.6 MB in the beginning and 64.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:35:32,904 INFO L168 Benchmark]: Boogie Preprocessor took 21.59 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 63.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:35:32,905 INFO L168 Benchmark]: RCFGBuilder took 266.80 ms. Allocated memory is still 102.8 MB. Free memory was 63.7 MB in the beginning and 75.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:35:32,905 INFO L168 Benchmark]: TraceAbstraction took 5679.53 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 74.8 MB in the beginning and 57.7 MB in the end (delta: 17.0 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. [2020-12-09 19:35:32,906 INFO L168 Benchmark]: Witness Printer took 46.81 ms. Allocated memory is still 148.9 MB. Free memory was 57.7 MB in the beginning and 53.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 19:35:32,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 102.8 MB. Free memory is still 83.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 198.70 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 66.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.47 ms. Allocated memory is still 102.8 MB. Free memory was 66.6 MB in the beginning and 64.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.59 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 63.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 266.80 ms. Allocated memory is still 102.8 MB. Free memory was 63.7 MB in the beginning and 75.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5679.53 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 74.8 MB in the beginning and 57.7 MB in the end (delta: 17.0 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. * Witness Printer took 46.81 ms. Allocated memory is still 148.9 MB. Free memory was 57.7 MB in the beginning and 53.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((main____CPAchecker_TMP_0 == 1 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) || ((((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296)) || main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && 4294967296 * ((main__index2 + (main__index2 * -1 + main__index1 + 4294967294) / 4294967296 * 4294967296 + 4294867297) / 4294967296) + 1 <= main__index1) && __VERIFIER_assert__cond == 1) || main__loop_entered == 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296)) || main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && 4294967296 * ((main__index2 + (main__index2 * -1 + main__index1 + 4294967294) / 4294967296 * 4294967296 + 4294867297) / 4294967296) + 1 <= main__index1) && __VERIFIER_assert__cond == 1) || (((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((!(main____CPAchecker_TMP_0 == 0) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && 4294967296 * ((main__index2 + (main__index2 * -1 + main__index1 + 4294967294) / 4294967296 * 4294967296 + 4294867297) / 4294967296) + 1 <= main__index1) && __VERIFIER_assert__cond == 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((main____CPAchecker_TMP_0 == 1 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && main__loop_entered == 0) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164 SDtfs, 175 SDslu, 174 SDs, 0 SdLazy, 148 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.4s 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, 7 MinimizatonAttempts, 44 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 21 NumberOfFragments, 541 HoareAnnotationTreeSize, 9 FomulaSimplifications, 482 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 146 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 43681 SizeOfPredicates, 3 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3/6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...