./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_true-unreach-call1_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_true-unreach-call1_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60e6b615607c81d5d8be3edb90a3b8bafc35bf36 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:16:41,705 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:16:41,706 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:16:41,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:16:41,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:16:41,713 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:16:41,713 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:16:41,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:16:41,715 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:16:41,715 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:16:41,716 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:16:41,716 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:16:41,716 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:16:41,717 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:16:41,717 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:16:41,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:16:41,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:16:41,719 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:16:41,720 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:16:41,721 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:16:41,721 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:16:41,722 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:16:41,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:16:41,723 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:16:41,723 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:16:41,724 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:16:41,724 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:16:41,725 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:16:41,725 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:16:41,726 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:16:41,726 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:16:41,726 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:16:41,726 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:16:41,726 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:16:41,727 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:16:41,727 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:16:41,727 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 00:16:41,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:16:41,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:16:41,735 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:16:41,735 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:16:41,736 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 00:16:41,736 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:16:41,736 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:16:41,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:16:41,737 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:16:41,737 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 00:16:41,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:16:41,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:16:41,738 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60e6b615607c81d5d8be3edb90a3b8bafc35bf36 [2018-12-09 00:16:41,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:16:41,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:16:41,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:16:41,766 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:16:41,766 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:16:41,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/../../sv-benchmarks/c/loop-acceleration/array_true-unreach-call1_true-termination.i [2018-12-09 00:16:41,800 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/data/0db8f9b43/f81fee6bda644d12b52fde7ac395f317/FLAG53858c055 [2018-12-09 00:16:42,149 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:16:42,149 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/sv-benchmarks/c/loop-acceleration/array_true-unreach-call1_true-termination.i [2018-12-09 00:16:42,153 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/data/0db8f9b43/f81fee6bda644d12b52fde7ac395f317/FLAG53858c055 [2018-12-09 00:16:42,533 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/data/0db8f9b43/f81fee6bda644d12b52fde7ac395f317 [2018-12-09 00:16:42,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:16:42,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:16:42,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:16:42,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:16:42,540 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:16:42,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c56171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42, skipping insertion in model container [2018-12-09 00:16:42,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:16:42,558 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:16:42,647 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:16:42,649 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:16:42,659 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:16:42,669 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:16:42,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42 WrapperNode [2018-12-09 00:16:42,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:16:42,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:16:42,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:16:42,670 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:16:42,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:16:42,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:16:42,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:16:42,684 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:16:42,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... [2018-12-09 00:16:42,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:16:42,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:16:42,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:16:42,726 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:16:42,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:16:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 00:16:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:16:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:16:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:16:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:16:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:16:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 00:16:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:16:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:16:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 00:16:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 00:16:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:16:42,856 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:16:42,856 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 00:16:42,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:16:42 BoogieIcfgContainer [2018-12-09 00:16:42,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:16:42,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:16:42,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:16:42,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:16:42,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:16:42" (1/3) ... [2018-12-09 00:16:42,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4903765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:16:42, skipping insertion in model container [2018-12-09 00:16:42,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:42" (2/3) ... [2018-12-09 00:16:42,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4903765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:16:42, skipping insertion in model container [2018-12-09 00:16:42,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:16:42" (3/3) ... [2018-12-09 00:16:42,862 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call1_true-termination.i [2018-12-09 00:16:42,867 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:16:42,871 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:16:42,881 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:16:42,899 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:16:42,899 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:16:42,899 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:16:42,899 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:16:42,899 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:16:42,900 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:16:42,900 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:16:42,900 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:16:42,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:16:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-09 00:16:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 00:16:42,913 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:42,914 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:42,915 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:42,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:42,919 INFO L82 PathProgramCache]: Analyzing trace with hash -267856937, now seen corresponding path program 1 times [2018-12-09 00:16:42,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:16:42,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:16:42,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:42,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:42,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:42,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:16:42,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:16:42,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:16:42,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:16:42,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:16:42,999 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-12-09 00:16:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:43,011 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-12-09 00:16:43,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:16:43,012 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-12-09 00:16:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:43,016 INFO L225 Difference]: With dead ends: 34 [2018-12-09 00:16:43,016 INFO L226 Difference]: Without dead ends: 14 [2018-12-09 00:16:43,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:16:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-09 00:16:43,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-09 00:16:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-09 00:16:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-12-09 00:16:43,038 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-12-09 00:16:43,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:43,038 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-12-09 00:16:43,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:16:43,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-12-09 00:16:43,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 00:16:43,039 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:43,039 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:43,039 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:43,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:43,039 INFO L82 PathProgramCache]: Analyzing trace with hash -439631843, now seen corresponding path program 1 times [2018-12-09 00:16:43,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:16:43,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:16:43,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:43,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:43,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:16:43,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:16:43,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:16:43,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:16:43,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:16:43,072 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2018-12-09 00:16:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:43,083 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-12-09 00:16:43,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:16:43,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-09 00:16:43,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:43,084 INFO L225 Difference]: With dead ends: 22 [2018-12-09 00:16:43,084 INFO L226 Difference]: Without dead ends: 16 [2018-12-09 00:16:43,084 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:16:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-09 00:16:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-12-09 00:16:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 00:16:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-12-09 00:16:43,087 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-12-09 00:16:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:43,087 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-12-09 00:16:43,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:16:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-09 00:16:43,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 00:16:43,088 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:43,088 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:43,088 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:43,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:43,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1874839487, now seen corresponding path program 1 times [2018-12-09 00:16:43,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:16:43,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:16:43,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:43,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:43,120 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:43,120 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:16:43,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:43,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:16:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:43,172 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 00:16:43,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-12-09 00:16:43,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:16:43,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:16:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:16:43,173 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2018-12-09 00:16:43,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:43,187 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-12-09 00:16:43,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:16:43,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-09 00:16:43,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:43,188 INFO L225 Difference]: With dead ends: 24 [2018-12-09 00:16:43,188 INFO L226 Difference]: Without dead ends: 18 [2018-12-09 00:16:43,188 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:16:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-09 00:16:43,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-12-09 00:16:43,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-09 00:16:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-12-09 00:16:43,190 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-12-09 00:16:43,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:43,190 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-12-09 00:16:43,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:16:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-12-09 00:16:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 00:16:43,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:43,191 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:43,191 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:43,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:43,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1288728289, now seen corresponding path program 2 times [2018-12-09 00:16:43,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:16:43,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:16:43,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:43,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:43,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:43,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:43,217 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/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 [2018-12-09 00:16:43,224 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 00:16:43,236 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 00:16:43,236 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 00:16:43,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:16:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:43,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 00:16:43,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-12-09 00:16:43,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:16:43,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:16:43,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:16:43,268 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 6 states. [2018-12-09 00:16:43,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:43,284 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-12-09 00:16:43,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 00:16:43,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-09 00:16:43,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:43,285 INFO L225 Difference]: With dead ends: 26 [2018-12-09 00:16:43,285 INFO L226 Difference]: Without dead ends: 20 [2018-12-09 00:16:43,286 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:16:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-09 00:16:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-12-09 00:16:43,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-09 00:16:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-12-09 00:16:43,289 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2018-12-09 00:16:43,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:43,289 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-12-09 00:16:43,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:16:43,289 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-12-09 00:16:43,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 00:16:43,290 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:43,290 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:43,290 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:43,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash 676582787, now seen corresponding path program 3 times [2018-12-09 00:16:43,291 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:16:43,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:16:43,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,292 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 00:16:43,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:43,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:43,326 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:16:43,332 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-09 00:16:43,341 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-09 00:16:43,341 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 00:16:43,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:16:43,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-09 00:16:43,364 INFO L478 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 12 treesize of output 11 [2018-12-09 00:16:43,364 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 00:16:43,366 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:16:43,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:16:43,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-12-09 00:16:43,404 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-12-09 00:16:43,406 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:16:43,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-12-09 00:16:43,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 00:16:43,409 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:16:43,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:16:43,416 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:7 [2018-12-09 00:16:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 00:16:43,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:16:43,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-09 00:16:43,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 00:16:43,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 00:16:43,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-12-09 00:16:43,461 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 12 states. [2018-12-09 00:16:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:45,613 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-12-09 00:16:45,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 00:16:45,613 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2018-12-09 00:16:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:45,613 INFO L225 Difference]: With dead ends: 26 [2018-12-09 00:16:45,613 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:16:45,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2018-12-09 00:16:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:16:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:16:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:16:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:16:45,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-12-09 00:16:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:45,614 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:16:45,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 00:16:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:16:45,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:16:45,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:16:45,648 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:16:45,649 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:16:45,649 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:16:45,649 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:16:45,649 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 00:16:45,649 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:16:45,649 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:16:45,649 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 15) the Hoare annotation is: true [2018-12-09 00:16:45,650 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 15) no Hoare annotation was computed. [2018-12-09 00:16:45,650 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (<= 1023 |main_#t~mem1|) (exists ((v_main_~i~0_10 Int)) (and (< v_main_~i~0_10 1024) (= v_main_~i~0_10 (select (select |#memory_int| |main_~#A~0.base|) (+ (* 4 v_main_~i~0_10) |main_~#A~0.offset|))) (<= 1023 v_main_~i~0_10))) (exists ((v_main_~i~0_10 Int)) (and (< v_main_~i~0_10 1024) (<= main_~i~0 (+ v_main_~i~0_10 1)) (= v_main_~i~0_10 (select (select |#memory_int| |main_~#A~0.base|) (+ (* 4 v_main_~i~0_10) |main_~#A~0.offset|))))) (< |main_#t~mem1| 1024)) [2018-12-09 00:16:45,650 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-12-09 00:16:45,650 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 15) no Hoare annotation was computed. [2018-12-09 00:16:45,650 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2018-12-09 00:16:45,650 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (or (exists ((v_main_~i~0_10 Int)) (and (< v_main_~i~0_10 1024) (<= main_~i~0 (+ v_main_~i~0_10 1)) (= v_main_~i~0_10 (select (select |#memory_int| |main_~#A~0.base|) (+ (* 4 v_main_~i~0_10) |main_~#A~0.offset|))))) (= main_~i~0 0)) [2018-12-09 00:16:45,650 INFO L448 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2018-12-09 00:16:45,651 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-12-09 00:16:45,651 INFO L448 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-12-09 00:16:45,651 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-12-09 00:16:45,651 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-12-09 00:16:45,651 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-12-09 00:16:45,651 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-12-09 00:16:45,655 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,655 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,655 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,656 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,657 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:16:45,660 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,660 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,660 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,661 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,661 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:16:45,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:16:45 BoogieIcfgContainer [2018-12-09 00:16:45,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:16:45,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:16:45,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:16:45,663 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:16:45,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:16:42" (3/4) ... [2018-12-09 00:16:45,666 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:16:45,670 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:16:45,670 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:16:45,670 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 00:16:45,672 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 00:16:45,673 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 00:16:45,673 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 00:16:45,690 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_main_~i~0_10 : int :: (v_main_~i~0_10 < 1024 && i <= v_main_~i~0_10 + 1) && v_main_~i~0_10 == unknown-#memory_int-unknown[A][4 * v_main_~i~0_10 + A]) || i == 0 [2018-12-09 00:16:45,696 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fdeaa7bd-657d-4af4-ac65-53fe496a6146/bin-2019/uautomizer/witness.graphml [2018-12-09 00:16:45,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:16:45,697 INFO L168 Benchmark]: Toolchain (without parser) took 3161.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 956.0 MB in the beginning and 934.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:16:45,698 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:16:45,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.36 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:16:45,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.62 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:16:45,699 INFO L168 Benchmark]: Boogie Preprocessor took 41.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:16:45,699 INFO L168 Benchmark]: RCFGBuilder took 131.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:16:45,700 INFO L168 Benchmark]: TraceAbstraction took 2805.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.6 MB in the end (delta: 130.9 MB). Peak memory consumption was 130.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:16:45,700 INFO L168 Benchmark]: Witness Printer took 33.94 ms. Allocated memory is still 1.1 GB. Free memory is still 934.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:16:45,702 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.36 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 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 13.62 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 131.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2805.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.6 MB in the end (delta: 130.9 MB). Peak memory consumption was 130.9 MB. Max. memory is 11.5 GB. * Witness Printer took 33.94 ms. Allocated memory is still 1.1 GB. Free memory is still 934.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 11]: Loop Invariant [2018-12-09 00:16:45,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,706 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:16:45,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2018-12-09 00:16:45,707 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (\exists v_main_~i~0_10 : int :: (v_main_~i~0_10 < 1024 && i <= v_main_~i~0_10 + 1) && v_main_~i~0_10 == unknown-#memory_int-unknown[A][4 * v_main_~i~0_10 + A]) || i == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 11 SDslu, 109 SDs, 0 SdLazy, 80 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 77 HoareAnnotationTreeSize, 12 FomulaSimplifications, 75 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 120 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 2 QuantifiedInterpolants, 3378 SizeOfPredicates, 8 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...