./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 282a32bc5fb3d70423f87a450340f7a26ab0f093 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:40:57,622 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:40:57,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:40:57,630 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:40:57,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:40:57,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:40:57,631 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:40:57,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:40:57,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:40:57,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:40:57,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:40:57,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:40:57,636 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:40:57,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:40:57,637 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:40:57,638 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:40:57,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:40:57,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:40:57,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:40:57,642 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:40:57,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:40:57,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:40:57,645 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:40:57,645 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:40:57,645 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:40:57,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:40:57,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:40:57,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:40:57,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:40:57,648 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:40:57,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:40:57,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:40:57,649 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:40:57,649 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:40:57,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:40:57,650 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:40:57,650 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:40:57,659 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:40:57,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:40:57,660 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:40:57,660 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:40:57,660 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:40:57,660 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:40:57,660 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:40:57,661 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:40:57,661 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:40:57,662 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:40:57,662 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:40:57,662 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:40:57,662 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:40:57,662 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:40:57,662 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:40:57,662 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:40:57,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:40:57,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:40:57,663 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:40:57,663 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:40:57,663 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:40:57,663 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:40:57,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:40:57,663 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_d722714d-227a-4204-835d-038780b66e91/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 282a32bc5fb3d70423f87a450340f7a26ab0f093 [2018-11-28 12:40:57,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:40:57,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:40:57,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:40:57,699 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:40:57,699 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:40:57,700 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:40:57,740 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/data/cee38a932/a1923b22a1a04cb3b4888909168a7dea/FLAG269c473a0 [2018-11-28 12:40:58,129 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:40:58,129 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:40:58,133 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/data/cee38a932/a1923b22a1a04cb3b4888909168a7dea/FLAG269c473a0 [2018-11-28 12:40:58,143 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/data/cee38a932/a1923b22a1a04cb3b4888909168a7dea [2018-11-28 12:40:58,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:40:58,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:40:58,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:58,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:40:58,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:40:58,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b9ef64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58, skipping insertion in model container [2018-11-28 12:40:58,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:40:58,164 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:40:58,263 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:58,265 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:40:58,277 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:58,287 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:40:58,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58 WrapperNode [2018-11-28 12:40:58,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:58,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:40:58,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:40:58,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:40:58,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:40:58,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:40:58,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:40:58,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:40:58,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... [2018-11-28 12:40:58,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:40:58,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:40:58,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:40:58,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:40:58,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/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 [2018-11-28 12:40:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:40:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:40:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:40:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:40:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:40:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:40:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:40:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:40:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:40:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:40:58,541 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:40:58,541 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:40:58,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:58 BoogieIcfgContainer [2018-11-28 12:40:58,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:40:58,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:40:58,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:40:58,545 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:40:58,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:40:58" (1/3) ... [2018-11-28 12:40:58,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9cc1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:40:58, skipping insertion in model container [2018-11-28 12:40:58,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:58" (2/3) ... [2018-11-28 12:40:58,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9cc1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:40:58, skipping insertion in model container [2018-11-28 12:40:58,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:58" (3/3) ... [2018-11-28 12:40:58,548 INFO L112 eAbstractionObserver]: Analyzing ICFG Arrays03-ValueRestictsIndex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:40:58,556 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:40:58,562 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 12:40:58,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 12:40:58,600 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:40:58,601 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:40:58,601 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:40:58,601 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:40:58,601 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:40:58,601 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:40:58,601 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:40:58,601 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:40:58,601 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:40:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-28 12:40:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:40:58,621 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:58,622 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:58,623 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:40:58,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:58,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1095362267, now seen corresponding path program 1 times [2018-11-28 12:40:58,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:58,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:58,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:58,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:58,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:58,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:58,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:58,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:40:58,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:40:58,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:40:58,784 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2018-11-28 12:40:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:58,842 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2018-11-28 12:40:58,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:40:58,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 12:40:58,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:58,849 INFO L225 Difference]: With dead ends: 44 [2018-11-28 12:40:58,849 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 12:40:58,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:40:58,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 12:40:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-28 12:40:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 12:40:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-28 12:40:58,873 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 9 [2018-11-28 12:40:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:58,873 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-28 12:40:58,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:40:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-28 12:40:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:40:58,874 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:58,874 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:58,874 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:40:58,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:58,874 INFO L82 PathProgramCache]: Analyzing trace with hash -702419999, now seen corresponding path program 1 times [2018-11-28 12:40:58,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:58,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:58,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:58,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:58,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:40:58,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:58,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:58,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:40:58,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:40:58,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:40:58,921 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2018-11-28 12:40:58,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:58,943 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-11-28 12:40:58,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:40:58,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-28 12:40:58,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:58,945 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:40:58,945 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 12:40:58,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:40:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 12:40:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 12:40:58,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 12:40:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-28 12:40:58,949 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 13 [2018-11-28 12:40:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:58,949 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-28 12:40:58,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:40:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-28 12:40:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:40:58,949 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:58,950 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:58,950 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:40:58,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:58,950 INFO L82 PathProgramCache]: Analyzing trace with hash -300183440, now seen corresponding path program 1 times [2018-11-28 12:40:58,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:58,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:58,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:58,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:58,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:59,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:40:59,027 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/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 [2018-11-28 12:40:59,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:59,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:59,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:40:59,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2018-11-28 12:40:59,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:40:59,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:40:59,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:40:59,135 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 8 states. [2018-11-28 12:40:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:59,177 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-28 12:40:59,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:40:59,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-11-28 12:40:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:59,178 INFO L225 Difference]: With dead ends: 23 [2018-11-28 12:40:59,178 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 12:40:59,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:40:59,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 12:40:59,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2018-11-28 12:40:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 12:40:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-28 12:40:59,181 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 14 [2018-11-28 12:40:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:59,181 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-28 12:40:59,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:40:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-28 12:40:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 12:40:59,182 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:59,182 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:59,182 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:40:59,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:59,182 INFO L82 PathProgramCache]: Analyzing trace with hash -761155646, now seen corresponding path program 1 times [2018-11-28 12:40:59,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:59,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:59,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:59,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:59,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:59,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:40:59,217 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/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 [2018-11-28 12:40:59,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:59,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:59,265 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:40:59,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-28 12:40:59,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:40:59,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:40:59,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:40:59,266 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 7 states. [2018-11-28 12:40:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:59,311 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2018-11-28 12:40:59,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:40:59,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 12:40:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:59,312 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:40:59,312 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 12:40:59,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:40:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 12:40:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2018-11-28 12:40:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 12:40:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-28 12:40:59,316 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2018-11-28 12:40:59,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:59,316 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-28 12:40:59,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:40:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-28 12:40:59,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 12:40:59,317 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:59,317 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:59,318 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:40:59,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:59,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1660776058, now seen corresponding path program 2 times [2018-11-28 12:40:59,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:59,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:59,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:59,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:59,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:59,367 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:40:59,367 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/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 [2018-11-28 12:40:59,381 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:40:59,391 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 12:40:59,391 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:40:59,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 12:40:59,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:40:59,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-11-28 12:40:59,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:40:59,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:40:59,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:40:59,421 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 9 states. [2018-11-28 12:40:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:59,516 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2018-11-28 12:40:59,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:40:59,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-11-28 12:40:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:59,517 INFO L225 Difference]: With dead ends: 37 [2018-11-28 12:40:59,517 INFO L226 Difference]: Without dead ends: 29 [2018-11-28 12:40:59,517 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:40:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-28 12:40:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2018-11-28 12:40:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 12:40:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-11-28 12:40:59,520 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2018-11-28 12:40:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:59,520 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-11-28 12:40:59,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:40:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-11-28 12:40:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 12:40:59,521 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:59,521 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:59,521 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:40:59,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:59,521 INFO L82 PathProgramCache]: Analyzing trace with hash -171362237, now seen corresponding path program 1 times [2018-11-28 12:40:59,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:59,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:59,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:59,522 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:59,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:40:59,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:59,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:59,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:40:59,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:40:59,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:40:59,556 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 4 states. [2018-11-28 12:40:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:59,569 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-11-28 12:40:59,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:40:59,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-28 12:40:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:59,570 INFO L225 Difference]: With dead ends: 26 [2018-11-28 12:40:59,570 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:40:59,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:40:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:40:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:40:59,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:40:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:40:59,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-28 12:40:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:59,571 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:40:59,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:40:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:40:59,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:40:59,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:40:59,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:40:59,612 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:40:59,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:40:59,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:40:59,612 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:40:59,612 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 28) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 26) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 28) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-11-28 12:40:59,613 INFO L448 ceAbstractionStarter]: For program point L15-4(line 15) no Hoare annotation was computed. [2018-11-28 12:40:59,614 INFO L444 ceAbstractionStarter]: At program point L15-5(lines 15 17) the Hoare annotation is: (or (= 0 main_~i~0) (<= 1 main_~i~0)) [2018-11-28 12:40:59,614 INFO L448 ceAbstractionStarter]: For program point L15-6(lines 11 28) no Hoare annotation was computed. [2018-11-28 12:40:59,614 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 12:40:59,614 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:40:59,614 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 28) the Hoare annotation is: true [2018-11-28 12:40:59,614 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 12:40:59,614 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 1 main_~i~0) (<= 0 main_~k~0) (<= main_~k~0 1047)) [2018-11-28 12:40:59,614 INFO L448 ceAbstractionStarter]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2018-11-28 12:40:59,615 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 12:40:59,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:40:59 BoogieIcfgContainer [2018-11-28 12:40:59,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:40:59,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:40:59,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:40:59,624 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:40:59,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:58" (3/4) ... [2018-11-28 12:40:59,627 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:40:59,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:40:59,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:40:59,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 12:40:59,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 12:40:59,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:40:59,668 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d722714d-227a-4204-835d-038780b66e91/bin-2019/uautomizer/witness.graphml [2018-11-28 12:40:59,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:40:59,669 INFO L168 Benchmark]: Toolchain (without parser) took 1524.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.0 MB in the beginning and 997.8 MB in the end (delta: -41.8 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:59,670 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-28 12:40:59,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.01 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. [2018-11-28 12:40:59,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.94 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. [2018-11-28 12:40:59,671 INFO L168 Benchmark]: Boogie Preprocessor took 55.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:59,671 INFO L168 Benchmark]: RCFGBuilder took 178.61 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:59,672 INFO L168 Benchmark]: TraceAbstraction took 1081.74 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: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:59,672 INFO L168 Benchmark]: Witness Printer took 44.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 997.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:59,674 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 142.01 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 18.94 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 55.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 178.61 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1081.74 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: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 997.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 1 <= i) && 0 <= k) && k <= 1047 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 == i || 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 4 error locations. SAFE Result, 1.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 59 SDslu, 233 SDs, 0 SdLazy, 146 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, 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, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 24 HoareAnnotationTreeSize, 6 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 147 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 4088 SizeOfPredicates, 4 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...