./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/transpose-u_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/transpose-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/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 90e0e7fa7b239327b49bddf09d7c464d84af093d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:14:54,972 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:14:54,973 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:14:54,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:14:54,983 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:14:54,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:14:54,984 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:14:54,985 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:14:54,987 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:14:54,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:14:54,988 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:14:54,988 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:14:54,989 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:14:54,990 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:14:54,991 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:14:54,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:14:54,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:14:54,993 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:14:55,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:14:55,002 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:14:55,003 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:14:55,004 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:14:55,006 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:14:55,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:14:55,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:14:55,011 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:14:55,012 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:14:55,012 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:14:55,013 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:14:55,014 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:14:55,014 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:14:55,017 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:14:55,018 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:14:55,018 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:14:55,019 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:14:55,019 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:14:55,020 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:14:55,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:14:55,035 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:14:55,036 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:14:55,036 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:14:55,036 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:14:55,036 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:14:55,036 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:14:55,036 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:14:55,037 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:14:55,037 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:14:55,037 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:14:55,038 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:14:55,038 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:14:55,038 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:14:55,038 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:14:55,038 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:14:55,038 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:14:55,038 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:14:55,039 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:14:55,039 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:14:55,039 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:14:55,039 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:14:55,039 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:14:55,039 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:14:55,039 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:14:55,040 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:14:55,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:14:55,041 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:14:55,041 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_c3226020-8976-4cf7-9f0a-14f5fe250ce0/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 -> 90e0e7fa7b239327b49bddf09d7c464d84af093d [2018-10-26 22:14:55,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:14:55,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:14:55,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:14:55,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:14:55,094 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:14:55,095 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/transpose-u_true-unreach-call.i [2018-10-26 22:14:55,153 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/data/1118446f5/dd69ac60c54a45ab9bcf1bd9c3714877/FLAG1070a7c0a [2018-10-26 22:14:55,537 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:14:55,537 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/sv-benchmarks/c/array-multidimensional/transpose-u_true-unreach-call.i [2018-10-26 22:14:55,544 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/data/1118446f5/dd69ac60c54a45ab9bcf1bd9c3714877/FLAG1070a7c0a [2018-10-26 22:14:55,555 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/data/1118446f5/dd69ac60c54a45ab9bcf1bd9c3714877 [2018-10-26 22:14:55,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:14:55,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:14:55,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:14:55,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:14:55,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:14:55,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8df7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55, skipping insertion in model container [2018-10-26 22:14:55,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:14:55,591 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:14:55,727 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:14:55,730 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:14:55,751 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:14:55,769 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:14:55,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55 WrapperNode [2018-10-26 22:14:55,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:14:55,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:14:55,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:14:55,771 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:14:55,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:14:55,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:14:55,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:14:55,815 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:14:55,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... [2018-10-26 22:14:55,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:14:55,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:14:55,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:14:55,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:14:55,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/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 [2018-10-26 22:14:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:14:56,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:14:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:14:56,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:14:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:14:56,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:14:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:14:56,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:14:56,534 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:14:56,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:14:56 BoogieIcfgContainer [2018-10-26 22:14:56,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:14:56,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:14:56,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:14:56,540 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:14:56,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:14:55" (1/3) ... [2018-10-26 22:14:56,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e21c158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:14:56, skipping insertion in model container [2018-10-26 22:14:56,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:14:55" (2/3) ... [2018-10-26 22:14:56,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e21c158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:14:56, skipping insertion in model container [2018-10-26 22:14:56,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:14:56" (3/3) ... [2018-10-26 22:14:56,544 INFO L112 eAbstractionObserver]: Analyzing ICFG transpose-u_true-unreach-call.i [2018-10-26 22:14:56,554 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:14:56,560 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:14:56,575 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:14:56,606 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:14:56,607 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:14:56,607 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:14:56,607 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:14:56,607 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:14:56,607 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:14:56,607 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:14:56,607 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:14:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-10-26 22:14:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:14:56,629 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:14:56,630 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:14:56,632 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:14:56,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:14:56,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1357915043, now seen corresponding path program 1 times [2018-10-26 22:14:56,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:14:56,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:14:56,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:56,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:14:56,674 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:14:56,704 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 22:14:56,704 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 22:14:56,705 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/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 [2018-10-26 22:14:56,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:56,724 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 22:14:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:14:56,770 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 22:14:56,772 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 22:14:56,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:14:56,772 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:14:56,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:56,780 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 22:14:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:14:56,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:14:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:14:56,831 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:14:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:14:56,890 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:14:56,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-10-26 22:14:56,890 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:14:56,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:14:56,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:14:56,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:14:56,906 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-10-26 22:14:56,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:14:56,926 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2018-10-26 22:14:56,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:14:56,928 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 22:14:56,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:14:56,936 INFO L225 Difference]: With dead ends: 70 [2018-10-26 22:14:56,936 INFO L226 Difference]: Without dead ends: 33 [2018-10-26 22:14:56,939 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:14:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-26 22:14:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-26 22:14:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 22:14:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-10-26 22:14:56,976 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 18 [2018-10-26 22:14:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:14:56,977 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-10-26 22:14:56,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:14:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-10-26 22:14:56,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 22:14:56,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:14:56,979 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:14:56,979 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:14:56,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:14:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1741814892, now seen corresponding path program 1 times [2018-10-26 22:14:56,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:14:56,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:14:56,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:56,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:14:56,981 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:14:56,990 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 22:14:56,991 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 22:14:56,991 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 22:14:56,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:56,999 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 22:14:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:14:57,049 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 22:14:57,049 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 22:14:57,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:14:57,049 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:14:57,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:57,058 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 22:14:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:14:57,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:14:57,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:14:57,171 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:14:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:14:57,228 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:14:57,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-10-26 22:14:57,228 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:14:57,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:14:57,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:14:57,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:14:57,230 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 3 states. [2018-10-26 22:14:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:14:57,373 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-10-26 22:14:57,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:14:57,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-10-26 22:14:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:14:57,375 INFO L225 Difference]: With dead ends: 60 [2018-10-26 22:14:57,375 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:14:57,376 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:14:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:14:57,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-10-26 22:14:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-26 22:14:57,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-10-26 22:14:57,383 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 20 [2018-10-26 22:14:57,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:14:57,384 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-10-26 22:14:57,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:14:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2018-10-26 22:14:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:14:57,385 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:14:57,385 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:14:57,385 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:14:57,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:14:57,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1347988783, now seen corresponding path program 1 times [2018-10-26 22:14:57,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:14:57,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:14:57,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:57,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:14:57,388 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:14:57,394 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 22:14:57,394 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 22:14:57,394 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 22:14:57,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:14:57,406 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 22:14:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:14:57,464 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-10-26 22:14:57,466 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [21], [29], [33], [37], [41], [61], [65], [70], [74], [79], [93], [96], [98], [104], [105], [106], [108] [2018-10-26 22:14:57,525 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 22:14:57,525 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 22:14:57,705 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 22:14:57,706 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 31 variables. [2018-10-26 22:14:57,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:14:57,717 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 22:14:57,839 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 79.74% of their original sizes. [2018-10-26 22:14:57,839 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 22:14:57,941 INFO L415 sIntCurrentIteration]: We unified 24 AI predicates to 24 [2018-10-26 22:14:57,941 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 22:14:57,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:14:57,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:14:57,942 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:14:57,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:14:57,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:14:57,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:14:57,944 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 4 states. [2018-10-26 22:14:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:14:58,005 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-10-26 22:14:58,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:14:58,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-26 22:14:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:14:58,006 INFO L225 Difference]: With dead ends: 37 [2018-10-26 22:14:58,006 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:14:58,007 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:14:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:14:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:14:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:14:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:14:58,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-10-26 22:14:58,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:14:58,009 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:14:58,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:14:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:14:58,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:14:58,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:14:58,776 WARN L179 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 18 [2018-10-26 22:14:59,507 WARN L179 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 24 [2018-10-26 22:14:59,515 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:14:59,516 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:14:59,516 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:14:59,516 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:14:59,516 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:14:59,516 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:14:59,516 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:14:59,516 INFO L425 ceAbstractionStarter]: For program point L35-3(lines 35 37) no Hoare annotation was computed. [2018-10-26 22:14:59,516 INFO L421 ceAbstractionStarter]: At program point L35-4(lines 35 37) the Hoare annotation is: false [2018-10-26 22:14:59,516 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 30) no Hoare annotation was computed. [2018-10-26 22:14:59,517 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 40) no Hoare annotation was computed. [2018-10-26 22:14:59,517 INFO L421 ceAbstractionStarter]: At program point L27-3(lines 27 30) the Hoare annotation is: false [2018-10-26 22:14:59,517 INFO L425 ceAbstractionStarter]: For program point L27-4(lines 27 30) no Hoare annotation was computed. [2018-10-26 22:14:59,517 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-10-26 22:14:59,517 INFO L425 ceAbstractionStarter]: For program point L15-3(lines 15 19) no Hoare annotation was computed. [2018-10-26 22:14:59,517 INFO L421 ceAbstractionStarter]: At program point L15-4(lines 15 19) the Hoare annotation is: (let ((.cse0 (+ |main_~#C~0.offset| main_~n~0))) (and (<= |main_~#A~0.offset| |main_~#C~0.offset|) (not (= |main_~#A~0.base| 0)) (<= (+ |main_~#C~0.offset| |main_~#A~0.offset|) 0) (= |main_~#A~0.offset| 0) (<= .cse0 1000) (= main_~i~0 0) (<= 1000 .cse0))) [2018-10-26 22:14:59,517 INFO L425 ceAbstractionStarter]: For program point L15-5(lines 15 19) no Hoare annotation was computed. [2018-10-26 22:14:59,518 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: false [2018-10-26 22:14:59,518 INFO L425 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-10-26 22:14:59,518 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-10-26 22:14:59,518 INFO L425 ceAbstractionStarter]: For program point L16-3(lines 16 18) no Hoare annotation was computed. [2018-10-26 22:14:59,518 INFO L421 ceAbstractionStarter]: At program point L16-4(lines 16 18) the Hoare annotation is: (and (<= main_~n~0 (+ |main_~#C~0.offset| 1000)) (<= (+ main_~i~0 main_~n~0) 1000) (not (= |main_~#A~0.base| 0)) (<= (+ |main_~#A~0.offset| 1000) main_~n~0) (<= 0 (+ main_~j~0 |main_~#A~0.offset|)) (<= (+ |main_~#C~0.offset| |main_~#A~0.offset|) 0) (<= (+ main_~j~0 1000) main_~n~0) (= main_~i~0 0)) [2018-10-26 22:14:59,518 INFO L425 ceAbstractionStarter]: For program point L25-1(lines 25 32) no Hoare annotation was computed. [2018-10-26 22:14:59,518 INFO L421 ceAbstractionStarter]: At program point L25-3(lines 25 32) the Hoare annotation is: false [2018-10-26 22:14:59,522 INFO L425 ceAbstractionStarter]: For program point L25-4(lines 25 32) no Hoare annotation was computed. [2018-10-26 22:14:59,523 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4 40) no Hoare annotation was computed. [2018-10-26 22:14:59,523 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 38) no Hoare annotation was computed. [2018-10-26 22:14:59,523 INFO L425 ceAbstractionStarter]: For program point L34-3(lines 34 38) no Hoare annotation was computed. [2018-10-26 22:14:59,523 INFO L421 ceAbstractionStarter]: At program point L34-4(lines 34 38) the Hoare annotation is: false [2018-10-26 22:14:59,523 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 40) the Hoare annotation is: true [2018-10-26 22:14:59,523 INFO L425 ceAbstractionStarter]: For program point L34-5(lines 34 38) no Hoare annotation was computed. [2018-10-26 22:14:59,524 INFO L425 ceAbstractionStarter]: For program point L35-1(lines 35 37) no Hoare annotation was computed. [2018-10-26 22:14:59,524 INFO L425 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-10-26 22:14:59,524 INFO L425 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-10-26 22:14:59,524 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-10-26 22:14:59,524 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-10-26 22:14:59,524 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-10-26 22:14:59,525 INFO L425 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-10-26 22:14:59,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:14:59 BoogieIcfgContainer [2018-10-26 22:14:59,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:14:59,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:14:59,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:14:59,551 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:14:59,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:14:56" (3/4) ... [2018-10-26 22:14:59,556 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:14:59,562 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:14:59,563 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:14:59,563 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 22:14:59,569 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2018-10-26 22:14:59,569 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-10-26 22:14:59,569 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 22:14:59,618 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c3226020-8976-4cf7-9f0a-14f5fe250ce0/bin-2019/utaipan/witness.graphml [2018-10-26 22:14:59,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:14:59,620 INFO L168 Benchmark]: Toolchain (without parser) took 4061.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 959.7 MB in the beginning and 941.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 170.9 MB. Max. memory is 11.5 GB. [2018-10-26 22:14:59,620 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:14:59,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:14:59,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.69 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:14:59,622 INFO L168 Benchmark]: Boogie Preprocessor took 36.20 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:14:59,622 INFO L168 Benchmark]: RCFGBuilder took 684.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-10-26 22:14:59,623 INFO L168 Benchmark]: TraceAbstraction took 3014.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.7 MB in the end (delta: 183.8 MB). Peak memory consumption was 183.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:14:59,623 INFO L168 Benchmark]: Witness Printer took 68.32 ms. Allocated memory is still 1.2 GB. Free memory was 946.7 MB in the beginning and 941.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:14:59,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 210.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 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 43.69 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.20 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 684.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3014.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.7 MB in the end (delta: 183.8 MB). Peak memory consumption was 183.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.32 ms. Allocated memory is still 1.2 GB. Free memory was 946.7 MB in the beginning and 941.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 15]: Loop Invariant Derived loop invariant: (((((A <= C && !(A == 0)) && C + A <= 0) && A == 0) && C + n <= 1000) && i == 0) && 1000 <= C + n - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((((((n <= C + 1000 && i + n <= 1000) && !(A == 0)) && A + 1000 <= n) && 0 <= j + A) && C + A <= 0) && j + 1000 <= n) && i == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 38 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 7 SDslu, 32 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9715053763440861 AbsIntWeakeningRatio, 1.25 AbsIntAvgWeakeningVarsNumRemoved, 60.041666666666664 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 77 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 344 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 1604 SizeOfPredicates, 2 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...