./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:18:06,992 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:18:06,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:18:07,002 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:18:07,002 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:18:07,003 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:18:07,004 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:18:07,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:18:07,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:18:07,006 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:18:07,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:18:07,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:18:07,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:18:07,008 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:18:07,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:18:07,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:18:07,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:18:07,010 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:18:07,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:18:07,012 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:18:07,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:18:07,013 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:18:07,015 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:18:07,015 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:18:07,015 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:18:07,016 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:18:07,016 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:18:07,017 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:18:07,017 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:18:07,018 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:18:07,018 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:18:07,019 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:18:07,019 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:18:07,019 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:18:07,020 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:18:07,020 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:18:07,020 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 08:18:07,029 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:18:07,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:18:07,030 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:18:07,030 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:18:07,030 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 08:18:07,031 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 08:18:07,031 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 08:18:07,031 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 08:18:07,031 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 08:18:07,031 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 08:18:07,031 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 08:18:07,032 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 08:18:07,032 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 08:18:07,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:18:07,032 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:18:07,033 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:18:07,034 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:18:07,034 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:18:07,034 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:18:07,034 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:18:07,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:18:07,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:18:07,035 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:18:07,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:18:07,035 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:18:07,035 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:18:07,035 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:18:07,035 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 08:18:07,035 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:18:07,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:18:07,036 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 08:18:07,036 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/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(__VERIFIER_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 -> 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 [2018-11-23 08:18:07,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:18:07,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:18:07,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:18:07,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:18:07,080 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:18:07,080 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-23 08:18:07,124 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/data/7dc44bd4a/5b8d1e433f6247bab1bd8973f15e67cb/FLAG17a481b05 [2018-11-23 08:18:07,441 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:18:07,441 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-23 08:18:07,445 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/data/7dc44bd4a/5b8d1e433f6247bab1bd8973f15e67cb/FLAG17a481b05 [2018-11-23 08:18:07,455 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/data/7dc44bd4a/5b8d1e433f6247bab1bd8973f15e67cb [2018-11-23 08:18:07,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:18:07,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:18:07,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:18:07,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:18:07,462 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:18:07,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cfd07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07, skipping insertion in model container [2018-11-23 08:18:07,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:18:07,485 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:18:07,604 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:18:07,607 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:18:07,624 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:18:07,636 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:18:07,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07 WrapperNode [2018-11-23 08:18:07,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:18:07,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:18:07,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:18:07,637 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:18:07,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:18:07,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:18:07,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:18:07,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:18:07,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... [2018-11-23 08:18:07,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:18:07,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:18:07,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:18:07,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:18:07,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/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 [2018-11-23 08:18:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:18:07,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:18:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:18:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:18:07,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:18:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 08:18:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:18:07,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:18:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 08:18:07,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 08:18:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 08:18:07,933 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:18:07,933 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 08:18:07,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:07 BoogieIcfgContainer [2018-11-23 08:18:07,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:18:07,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:18:07,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:18:07,938 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:18:07,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:18:07" (1/3) ... [2018-11-23 08:18:07,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308cf82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:18:07, skipping insertion in model container [2018-11-23 08:18:07,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:07" (2/3) ... [2018-11-23 08:18:07,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308cf82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:18:07, skipping insertion in model container [2018-11-23 08:18:07,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:07" (3/3) ... [2018-11-23 08:18:07,942 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-23 08:18:07,953 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:18:07,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:18:07,982 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:18:08,013 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:18:08,013 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:18:08,013 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:18:08,013 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:18:08,013 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:18:08,014 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:18:08,014 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:18:08,014 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:18:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-23 08:18:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 08:18:08,037 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:18:08,037 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:18:08,039 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:18:08,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:18:08,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1079158542, now seen corresponding path program 1 times [2018-11-23 08:18:08,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:18:08,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:18:08,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,084 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:18:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:18:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:18:08,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:18:08,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:18:08,241 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:18:08,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:18:08,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:18:08,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:18:08,256 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-11-23 08:18:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:18:08,343 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2018-11-23 08:18:08,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 08:18:08,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-23 08:18:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:18:08,352 INFO L225 Difference]: With dead ends: 56 [2018-11-23 08:18:08,352 INFO L226 Difference]: Without dead ends: 30 [2018-11-23 08:18:08,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:18:08,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-23 08:18:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-11-23 08:18:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 08:18:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-23 08:18:08,387 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2018-11-23 08:18:08,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:18:08,388 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-23 08:18:08,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:18:08,388 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-23 08:18:08,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 08:18:08,389 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:18:08,389 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:18:08,389 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:18:08,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:18:08,390 INFO L82 PathProgramCache]: Analyzing trace with hash -476045897, now seen corresponding path program 1 times [2018-11-23 08:18:08,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:18:08,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:18:08,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:18:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:18:08,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:18:08,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:18:08,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:18:08,451 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:18:08,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:18:08,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:18:08,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:18:08,453 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 3 states. [2018-11-23 08:18:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:18:08,463 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-11-23 08:18:08,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:18:08,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-23 08:18:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:18:08,464 INFO L225 Difference]: With dead ends: 36 [2018-11-23 08:18:08,464 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 08:18:08,465 INFO L631 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 [2018-11-23 08:18:08,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 08:18:08,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-11-23 08:18:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 08:18:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-23 08:18:08,470 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 13 [2018-11-23 08:18:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:18:08,471 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-23 08:18:08,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:18:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-23 08:18:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 08:18:08,471 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:18:08,472 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:18:08,472 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:18:08,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:18:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1393486425, now seen corresponding path program 1 times [2018-11-23 08:18:08,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:18:08,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:18:08,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:18:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:18:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:18:08,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:18:08,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 08:18:08,631 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:18:08,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 08:18:08,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 08:18:08,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 08:18:08,632 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 8 states. [2018-11-23 08:18:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:18:08,736 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-11-23 08:18:08,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 08:18:08,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-11-23 08:18:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:18:08,738 INFO L225 Difference]: With dead ends: 38 [2018-11-23 08:18:08,738 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 08:18:08,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-23 08:18:08,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 08:18:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2018-11-23 08:18:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 08:18:08,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-11-23 08:18:08,744 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 18 [2018-11-23 08:18:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:18:08,744 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-11-23 08:18:08,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 08:18:08,744 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-11-23 08:18:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 08:18:08,745 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:18:08,745 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:18:08,745 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:18:08,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:18:08,745 INFO L82 PathProgramCache]: Analyzing trace with hash 618852702, now seen corresponding path program 1 times [2018-11-23 08:18:08,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:18:08,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:18:08,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:18:08,746 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:18:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:18:09,101 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2018-11-23 08:18:09,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:18:09,156 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:18:09,157 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 08:18:09,157 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-11-23 08:18:09,158 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [16], [22], [31], [42], [45], [47], [50], [52], [53], [54], [55], [57], [58], [59] [2018-11-23 08:18:09,188 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:18:09,188 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:18:09,364 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 08:18:09,365 INFO L272 AbstractInterpreter]: Visited 19 different actions 35 times. Merged at 4 different actions 4 times. Never widened. Performed 158 root evaluator evaluations with a maximum evaluation depth of 7. Performed 158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 23 variables. [2018-11-23 08:18:09,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:18:09,383 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 08:18:09,383 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:18:09,383 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:18:09,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:18:09,390 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 08:18:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:18:09,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:18:52,368 WARN L180 SmtUtils]: Spent 38.21 s on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-11-23 08:18:52,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 126 [2018-11-23 08:18:52,454 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:18:52,459 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:18:52,468 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:18:52,470 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:18:52,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:18:52,484 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:18:52,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 121 [2018-11-23 08:18:52,521 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 08:18:52,647 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 08:19:29,658 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 88 [2018-11-23 08:19:29,669 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:19:29,675 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:29,685 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:19:29,689 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:29,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 80 [2018-11-23 08:19:29,702 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 08:19:29,718 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:19:29,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 16 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 08:19:29,747 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 80 variables, input treesize:1849, output treesize:23 [2018-11-23 08:19:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:29,788 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 08:19:29,995 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-11-23 08:19:30,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 140 [2018-11-23 08:19:30,222 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,223 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,224 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,225 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,226 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,227 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,228 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,229 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,242 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,265 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:19:30,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 219 [2018-11-23 08:19:30,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 08:19:30,363 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:01,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 106 [2018-11-23 08:21:01,865 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:01,865 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:01,873 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:01,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:01,875 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:01,883 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:01,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 137 [2018-11-23 08:21:01,893 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 08:21:01,929 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:39,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 152 [2018-11-23 08:21:39,131 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,131 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,144 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,145 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,145 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,146 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,147 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,147 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,157 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,157 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,162 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,162 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,167 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,168 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:39,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 319 [2018-11-23 08:21:39,228 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-23 08:21:39,348 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:22:53,246 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 142 [2018-11-23 08:22:53,264 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,265 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,265 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,275 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,275 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,281 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,281 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,281 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,283 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,293 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,405 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:22:53,824 INFO L303 Elim1Store]: Index analysis took 577 ms [2018-11-23 08:22:53,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 308 [2018-11-23 08:22:53,874 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-11-23 08:22:53,996 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:22:57,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 156 dim-0 vars, 78 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 08:22:57,018 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 234 variables, input treesize:12356, output treesize:29 [2018-11-23 08:22:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:22:57,160 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 08:22:57,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [8] total 13 [2018-11-23 08:22:57,160 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:22:57,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 08:22:57,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 08:22:57,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=121, Unknown=2, NotChecked=0, Total=156 [2018-11-23 08:22:57,161 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2018-11-23 08:23:06,832 WARN L180 SmtUtils]: Spent 7.41 s on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-11-23 08:23:18,946 WARN L180 SmtUtils]: Spent 10.06 s on a formula simplification that was a NOOP. DAG size: 57 [2018-11-23 08:23:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:23:19,071 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-11-23 08:23:19,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 08:23:19,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-11-23 08:23:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:23:19,072 INFO L225 Difference]: With dead ends: 34 [2018-11-23 08:23:19,072 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 08:23:19,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 65.2s TimeCoverageRelationStatistics Valid=54, Invalid=182, Unknown=4, NotChecked=0, Total=240 [2018-11-23 08:23:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 08:23:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 08:23:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 08:23:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:23:19,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-11-23 08:23:19,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:23:19,074 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:23:19,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 08:23:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:23:19,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 08:23:19,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 08:23:23,456 WARN L180 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-11-23 08:23:33,373 WARN L180 SmtUtils]: Spent 9.92 s on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-11-23 08:23:33,424 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:23:33,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 08:23:33,425 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:23:33,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L444 ceAbstractionStarter]: At program point L31-2(lines 31 37) the Hoare annotation is: (let ((.cse2 (* 4294967296 (div main_~index2~0 4294967296)))) (or (let ((.cse0 (+ main_~index2~0 1))) (and (<= (+ (* 4294967296 (div .cse0 4294967296)) main_~index1~0) (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) main_~index2~0 1)) (let ((.cse1 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse1 (+ (* 4 (mod .cse0 4294967296)) |main_~#array~0.offset|)) 4294967296) (mod (select .cse1 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))) (<= main_~index2~0 (+ .cse2 99998)))) (and (<= main_~index1~0 (+ (* 4294967296 (div main_~index1~0 4294967296)) 99999)) (<= main_~index2~0 (+ .cse2 99999)) (= main_~loop_entered~0 0)))) [2018-11-23 08:23:33,425 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 20 47) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2018-11-23 08:23:33,425 INFO L444 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: (or (let ((.cse2 (+ main_~index2~0 1))) (let ((.cse0 (* 4294967296 (div .cse2 4294967296)))) (and (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) main_~index2~0 1)) (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse1 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse1 (+ (* 4 (mod .cse2 4294967296)) |main_~#array~0.offset|)) 4294967296) (mod (select .cse1 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296)))))) (let ((.cse3 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse3 99999)) (<= (+ .cse3 main_~index1~0 1) (+ main_~index2~0 (* 4294967296 (div main_~index1~0 4294967296))))))) [2018-11-23 08:23:33,426 INFO L444 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (or (and (<= main_~index2~0 (+ .cse0 99999)) (= main_~loop_entered~0 0)) (<= main_~index2~0 (+ .cse0 99998))) (<= (+ .cse0 main_~index1~0 1) (+ main_~index2~0 (* 4294967296 (div main_~index1~0 4294967296)))))) [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2018-11-23 08:23:33,426 INFO L444 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: (let ((.cse4 (+ main_~index2~0 1))) (let ((.cse0 (* 4294967296 (div .cse4 4294967296))) (.cse2 (* 4294967296 (div |main_#t~mem7| 4294967296))) (.cse1 (+ (* 4294967296 (div |main_#t~mem8| 4294967296)) |main_#t~mem7|))) (and (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) main_~index2~0 1)) (< .cse1 (+ .cse2 |main_#t~mem8| 1)) (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse3 (+ (* 4 (mod .cse4 4294967296)) |main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))) (<= (+ .cse2 |main_#t~mem8|) .cse1)))) [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-11-23 08:23:33,426 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-11-23 08:23:33,431 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,432 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,438 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,438 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,439 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,439 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,440 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,440 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:23:33 BoogieIcfgContainer [2018-11-23 08:23:33,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 08:23:33,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:23:33,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:23:33,442 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:23:33,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:07" (3/4) ... [2018-11-23 08:23:33,445 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 08:23:33,449 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 08:23:33,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 08:23:33,450 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 08:23:33,453 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-23 08:23:33,453 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 08:23:33,453 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 08:23:33,488 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_08e7b180-b4fc-4044-b415-1e46cfa6808c/bin-2019/utaipan/witness.graphml [2018-11-23 08:23:33,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:23:33,489 INFO L168 Benchmark]: Toolchain (without parser) took 326030.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 958.2 MB in the beginning and 882.6 MB in the end (delta: 75.6 MB). Peak memory consumption was 237.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,490 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:23:33,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.55 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.29 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,491 INFO L168 Benchmark]: Boogie Preprocessor took 62.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,491 INFO L168 Benchmark]: RCFGBuilder took 217.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,491 INFO L168 Benchmark]: TraceAbstraction took 325507.11 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.5 MB). Free memory was 1.1 GB in the beginning and 888.1 MB in the end (delta: 234.0 MB). Peak memory consumption was 256.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,493 INFO L168 Benchmark]: Witness Printer took 46.37 ms. Allocated memory is still 1.2 GB. Free memory was 888.1 MB in the beginning and 882.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. [2018-11-23 08:23:33,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.55 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.29 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 217.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 325507.11 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.5 MB). Free memory was 1.1 GB in the beginning and 888.1 MB in the end (delta: 234.0 MB). Peak memory consumption was 256.5 MB. Max. memory is 11.5 GB. * Witness Printer took 46.37 ms. Allocated memory is still 1.2 GB. Free memory was 888.1 MB in the beginning and 882.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2018-11-23 08:23:33,498 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,498 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,499 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,499 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((4294967296 * ((index2 + 1) / 4294967296) + index1 <= 4294967296 * ((index1 + -1) / 4294967296) + index2 + 1 && index2 <= 4294967296 * ((index2 + 1) / 4294967296) + 99998) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) || (index2 <= 4294967296 * (index2 / 4294967296) + 99999 && 4294967296 * (index2 / 4294967296) + index1 + 1 <= index2 + 4294967296 * (index1 / 4294967296)) - InvariantResult [Line: 31]: Loop Invariant [2018-11-23 08:23:33,500 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,500 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,501 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 08:23:33,501 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((4294967296 * ((index2 + 1) / 4294967296) + index1 <= 4294967296 * ((index1 + -1) / 4294967296) + index2 + 1 && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) && index2 <= 4294967296 * (index2 / 4294967296) + 99998) || ((index1 <= 4294967296 * (index1 / 4294967296) + 99999 && index2 <= 4294967296 * (index2 / 4294967296) + 99999) && loop_entered == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 325.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 22.1s AutomataDifference, 0.0s DeadEndRemovalTime, 14.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 34 SDslu, 198 SDs, 0 SdLazy, 156 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 65.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 313 HoareAnnotationTreeSize, 15 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 299 FormulaSimplificationTreeSizeReductionInter, 14.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 288.3s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 58470 SizeOfPredicates, 10 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 12/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...