./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:37:58,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:37:58,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:37:58,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:37:58,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:37:58,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:37:58,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:37:58,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:37:58,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:37:58,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:37:58,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:37:58,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:37:58,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:37:58,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:37:58,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:37:58,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:37:58,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:37:58,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:37:58,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:37:58,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:37:58,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:37:58,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:37:58,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:37:58,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:37:58,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:37:58,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:37:58,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:37:58,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:37:58,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:37:58,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:37:58,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:37:58,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:37:58,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:37:58,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:37:58,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:37:58,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:37:58,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:37:58,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:37:58,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:37:58,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:37:58,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:37:58,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2019-11-26 02:37:58,787 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:37:58,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:37:58,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:37:58,798 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:37:58,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:37:58,798 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:37:58,798 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:37:58,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:37:58,799 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:37:58,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:37:58,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:37:58,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:37:58,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:37:58,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:37:58,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:37:58,802 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 02:37:58,802 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 02:37:58,802 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 02:37:58,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:37:58,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:37:58,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:37:58,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:37:58,803 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:37:58,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:37:58,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:37:58,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:37:58,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:37:58,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:37:58,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:37:58,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:37:58,805 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:37:58,805 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:37:58,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:37:58,806 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2019-11-26 02:37:58,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:37:58,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:37:58,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:37:58,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:37:58,952 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:37:58,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-11-26 02:37:58,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/data/33176305e/ec0543e5b5a34c3da28bdc7a00d96f1f/FLAGcefc4c127 [2019-11-26 02:37:59,391 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:37:59,392 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-11-26 02:37:59,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/data/33176305e/ec0543e5b5a34c3da28bdc7a00d96f1f/FLAGcefc4c127 [2019-11-26 02:37:59,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/data/33176305e/ec0543e5b5a34c3da28bdc7a00d96f1f [2019-11-26 02:37:59,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:37:59,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:37:59,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:37:59,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:37:59,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:37:59,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:37:59" (1/1) ... [2019-11-26 02:37:59,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd8ea04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:59, skipping insertion in model container [2019-11-26 02:37:59,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:37:59" (1/1) ... [2019-11-26 02:37:59,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:37:59,816 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:37:59,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:37:59,983 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:00,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:00,088 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:00,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00 WrapperNode [2019-11-26 02:38:00,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:00,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:00,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:00,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:00,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:00,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:00,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:00,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:00,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... [2019-11-26 02:38:00,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:00,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:00,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:00,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:00,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:38:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:38:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:38:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:38:00,461 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:00,462 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:38:00,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:00 BoogieIcfgContainer [2019-11-26 02:38:00,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:00,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:00,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:00,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:00,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:37:59" (1/3) ... [2019-11-26 02:38:00,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1ca3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:00, skipping insertion in model container [2019-11-26 02:38:00,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:00" (2/3) ... [2019-11-26 02:38:00,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1ca3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:00, skipping insertion in model container [2019-11-26 02:38:00,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:00" (3/3) ... [2019-11-26 02:38:00,469 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2019-11-26 02:38:00,478 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:00,483 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-26 02:38:00,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-26 02:38:00,510 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:00,511 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-26 02:38:00,511 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:00,511 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:00,511 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:00,511 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:00,511 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:00,511 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:00,526 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:38:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:38:00,532 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:00,533 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:38:00,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-11-26 02:38:00,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:00,538 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2019-11-26 02:38:00,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:00,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [331392281] [2019-11-26 02:38:00,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:00,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:38:00,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:00,670 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-26 02:38:00,671 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:38:00,680 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:38:00,681 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 02:38:00,681 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-26 02:38:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:00,697 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:00,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [331392281] [2019-11-26 02:38:00,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:00,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:38:00,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321878274] [2019-11-26 02:38:00,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:38:00,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:00,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:38:00,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:38:00,716 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-26 02:38:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:00,793 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-11-26 02:38:00,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:38:00,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-26 02:38:00,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:00,800 INFO L225 Difference]: With dead ends: 21 [2019-11-26 02:38:00,801 INFO L226 Difference]: Without dead ends: 19 [2019-11-26 02:38:00,802 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:38:00,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-26 02:38:00,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-26 02:38:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:38:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-26 02:38:00,826 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 3 [2019-11-26 02:38:00,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:00,826 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-26 02:38:00,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:38:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-26 02:38:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:38:00,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:00,827 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:38:01,028 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:01,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-11-26 02:38:01,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:01,029 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-11-26 02:38:01,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:01,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [304779547] [2019-11-26 02:38:01,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:01,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:38:01,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:01,087 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-26 02:38:01,088 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:38:01,098 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:38:01,099 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 02:38:01,099 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-26 02:38:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:01,110 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:01,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [304779547] [2019-11-26 02:38:01,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:01,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-26 02:38:01,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620079458] [2019-11-26 02:38:01,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:38:01,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:01,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:38:01,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:01,160 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2019-11-26 02:38:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:01,208 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-26 02:38:01,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:38:01,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-26 02:38:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:01,210 INFO L225 Difference]: With dead ends: 14 [2019-11-26 02:38:01,210 INFO L226 Difference]: Without dead ends: 14 [2019-11-26 02:38:01,211 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:01,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-26 02:38:01,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-26 02:38:01,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-26 02:38:01,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-11-26 02:38:01,213 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 3 [2019-11-26 02:38:01,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:01,214 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-11-26 02:38:01,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:38:01,214 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-11-26 02:38:01,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:38:01,214 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:01,214 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:01,418 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:01,420 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-11-26 02:38:01,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:01,420 INFO L82 PathProgramCache]: Analyzing trace with hash 59325613, now seen corresponding path program 1 times [2019-11-26 02:38:01,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:01,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1982194288] [2019-11-26 02:38:01,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:01,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:38:01,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:01,499 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-26 02:38:01,499 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:38:01,501 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:38:01,502 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 02:38:01,502 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-26 02:38:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:01,558 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:01,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1982194288] [2019-11-26 02:38:01,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:01,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2019-11-26 02:38:01,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577826392] [2019-11-26 02:38:01,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:38:01,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:01,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:38:01,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:38:01,584 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 7 states. [2019-11-26 02:38:01,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:01,699 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-26 02:38:01,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:38:01,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-26 02:38:01,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:01,700 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:38:01,701 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:38:01,701 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:38:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:38:01,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:38:01,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:38:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:38:01,702 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-26 02:38:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:01,702 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:38:01,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:38:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:38:01,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:38:01,903 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:01,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:38:01 BoogieIcfgContainer [2019-11-26 02:38:01,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:38:01,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:38:01,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:38:01,908 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:38:01,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:00" (3/4) ... [2019-11-26 02:38:01,911 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:38:01,918 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:38:01,919 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:38:01,919 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:38:01,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e5bb7c1-91cd-41a6-af37-cda58ea20bc7/bin/utaipan/witness.graphml [2019-11-26 02:38:01,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:38:01,953 INFO L168 Benchmark]: Toolchain (without parser) took 2164.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -98.2 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:01,953 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:01,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:01,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:01,955 INFO L168 Benchmark]: Boogie Preprocessor took 22.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:01,955 INFO L168 Benchmark]: RCFGBuilder took 313.20 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:01,955 INFO L168 Benchmark]: TraceAbstraction took 1443.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:01,956 INFO L168 Benchmark]: Witness Printer took 44.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:01,958 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 313.20 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1443.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 11 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 57 SDslu, 13 SDs, 0 SdLazy, 45 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 1 QuantifiedInterpolants, 1087 SizeOfPredicates, 1 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...