./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3a725921be8310e882457f7f33c9ff7dbee0bc2 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:14:58,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:14:58,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:14:58,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:14:58,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:14:59,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:14:59,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:14:59,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:14:59,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:14:59,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:14:59,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:14:59,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:14:59,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:14:59,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:14:59,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:14:59,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:14:59,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:14:59,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:14:59,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:14:59,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:14:59,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:14:59,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:14:59,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:14:59,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:14:59,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:14:59,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:14:59,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:14:59,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:14:59,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:14:59,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:14:59,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:14:59,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:14:59,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:14:59,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:14:59,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:14:59,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:14:59,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:14:59,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:14:59,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:14:59,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:14:59,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:14:59,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:14:59,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:14:59,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:14:59,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:14:59,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:14:59,150 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:14:59,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:14:59,151 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:14:59,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:14:59,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:14:59,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:14:59,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:14:59,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:14:59,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:14:59,153 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:14:59,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:14:59,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:14:59,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:14:59,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:14:59,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:14:59,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:14:59,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:14:59,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:14:59,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:14:59,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:14:59,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:14:59,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:14:59,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:14:59,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:14:59,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:14:59,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3a725921be8310e882457f7f33c9ff7dbee0bc2 [2020-11-30 00:14:59,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:14:59,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:14:59,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:14:59,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:14:59,465 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:14:59,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/nested6.i [2020-11-30 00:14:59,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/data/6ada6b84c/213a6ffe86a942cc89b8ed96c94ebcfc/FLAGe3b3ae1e4 [2020-11-30 00:15:00,057 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:15:00,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/sv-benchmarks/c/loop-invgen/nested6.i [2020-11-30 00:15:00,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/data/6ada6b84c/213a6ffe86a942cc89b8ed96c94ebcfc/FLAGe3b3ae1e4 [2020-11-30 00:15:00,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/data/6ada6b84c/213a6ffe86a942cc89b8ed96c94ebcfc [2020-11-30 00:15:00,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:15:00,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:15:00,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:15:00,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:15:00,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:15:00,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74354a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00, skipping insertion in model container [2020-11-30 00:15:00,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:15:00,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:15:00,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:15:00,713 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:15:00,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:15:00,751 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:15:00,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00 WrapperNode [2020-11-30 00:15:00,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:15:00,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:15:00,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:15:00,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:15:00,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:15:00,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:15:00,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:15:00,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:15:00,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... [2020-11-30 00:15:00,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:15:00,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:15:00,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:15:00,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:15:00,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/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 [2020-11-30 00:15:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:15:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:15:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:15:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:15:01,237 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:15:01,237 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-30 00:15:01,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:15:01 BoogieIcfgContainer [2020-11-30 00:15:01,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:15:01,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:15:01,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:15:01,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:15:01,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:15:00" (1/3) ... [2020-11-30 00:15:01,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73309908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:15:01, skipping insertion in model container [2020-11-30 00:15:01,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:00" (2/3) ... [2020-11-30 00:15:01,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73309908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:15:01, skipping insertion in model container [2020-11-30 00:15:01,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:15:01" (3/3) ... [2020-11-30 00:15:01,270 INFO L111 eAbstractionObserver]: Analyzing ICFG nested6.i [2020-11-30 00:15:01,284 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:15:01,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 00:15:01,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 00:15:01,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:15:01,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:15:01,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:15:01,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:15:01,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:15:01,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:15:01,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:15:01,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:15:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-30 00:15:01,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:15:01,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:15:01,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:15:01,354 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:15:01,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:15:01,359 INFO L82 PathProgramCache]: Analyzing trace with hash 34097461, now seen corresponding path program 1 times [2020-11-30 00:15:01,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:15:01,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903227957] [2020-11-30 00:15:01,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:15:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:01,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903227957] [2020-11-30 00:15:01,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:15:01,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:15:01,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084942119] [2020-11-30 00:15:01,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:15:01,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:15:01,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:15:01,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:15:01,644 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2020-11-30 00:15:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:15:01,797 INFO L93 Difference]: Finished difference Result 72 states and 102 transitions. [2020-11-30 00:15:01,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:15:01,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 00:15:01,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:15:01,809 INFO L225 Difference]: With dead ends: 72 [2020-11-30 00:15:01,810 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:15:01,813 INFO L677 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 [2020-11-30 00:15:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:15:01,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-11-30 00:15:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 00:15:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-11-30 00:15:01,850 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 12 [2020-11-30 00:15:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:15:01,850 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-11-30 00:15:01,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:15:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-11-30 00:15:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:15:01,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:15:01,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:15:01,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:15:01,853 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:15:01,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:15:01,854 INFO L82 PathProgramCache]: Analyzing trace with hash 85566779, now seen corresponding path program 1 times [2020-11-30 00:15:01,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:15:01,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886498848] [2020-11-30 00:15:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:15:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:01,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886498848] [2020-11-30 00:15:01,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:15:01,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:15:01,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088440670] [2020-11-30 00:15:01,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:15:01,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:15:01,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:15:01,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:15:01,963 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 5 states. [2020-11-30 00:15:02,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:15:02,217 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-11-30 00:15:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:15:02,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-30 00:15:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:15:02,221 INFO L225 Difference]: With dead ends: 44 [2020-11-30 00:15:02,221 INFO L226 Difference]: Without dead ends: 40 [2020-11-30 00:15:02,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:15:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-30 00:15:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 20. [2020-11-30 00:15:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 00:15:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-11-30 00:15:02,232 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2020-11-30 00:15:02,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:15:02,233 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-11-30 00:15:02,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:15:02,234 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-11-30 00:15:02,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:15:02,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:15:02,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:15:02,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:15:02,237 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:15:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:15:02,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1206597064, now seen corresponding path program 1 times [2020-11-30 00:15:02,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:15:02,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088772484] [2020-11-30 00:15:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:15:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:02,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088772484] [2020-11-30 00:15:02,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:15:02,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:15:02,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469901447] [2020-11-30 00:15:02,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:15:02,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:15:02,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:15:02,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:15:02,377 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2020-11-30 00:15:02,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:15:02,486 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-11-30 00:15:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:15:02,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 00:15:02,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:15:02,488 INFO L225 Difference]: With dead ends: 42 [2020-11-30 00:15:02,488 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 00:15:02,489 INFO L677 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 [2020-11-30 00:15:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 00:15:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2020-11-30 00:15:02,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 00:15:02,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-11-30 00:15:02,499 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 14 [2020-11-30 00:15:02,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:15:02,500 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-11-30 00:15:02,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:15:02,500 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-11-30 00:15:02,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:15:02,501 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:15:02,502 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:15:02,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:15:02,502 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:15:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:15:02,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1979855453, now seen corresponding path program 1 times [2020-11-30 00:15:02,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:15:02,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359905228] [2020-11-30 00:15:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:15:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:02,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359905228] [2020-11-30 00:15:02,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204493787] [2020-11-30 00:15:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:15:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:02,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:15:02,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:15:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:03,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:15:03,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-11-30 00:15:03,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228370108] [2020-11-30 00:15:03,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:15:03,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:15:03,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:15:03,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:15:03,011 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 5 states. [2020-11-30 00:15:03,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:15:03,224 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2020-11-30 00:15:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:15:03,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-30 00:15:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:15:03,227 INFO L225 Difference]: With dead ends: 86 [2020-11-30 00:15:03,227 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 00:15:03,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:15:03,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 00:15:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 32. [2020-11-30 00:15:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 00:15:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-11-30 00:15:03,247 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2020-11-30 00:15:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:15:03,247 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-11-30 00:15:03,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:15:03,248 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-11-30 00:15:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:15:03,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:15:03,249 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:15:03,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:15:03,473 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:15:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:15:03,474 INFO L82 PathProgramCache]: Analyzing trace with hash -535634136, now seen corresponding path program 1 times [2020-11-30 00:15:03,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:15:03,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694037213] [2020-11-30 00:15:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:15:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:03,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694037213] [2020-11-30 00:15:03,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424739375] [2020-11-30 00:15:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:15:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:03,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:15:03,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:15:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:03,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:15:03,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-11-30 00:15:03,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35385056] [2020-11-30 00:15:03,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:15:03,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:15:03,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:15:03,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:15:03,751 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 11 states. [2020-11-30 00:15:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:15:04,723 INFO L93 Difference]: Finished difference Result 76 states and 98 transitions. [2020-11-30 00:15:04,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-30 00:15:04,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-11-30 00:15:04,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:15:04,725 INFO L225 Difference]: With dead ends: 76 [2020-11-30 00:15:04,725 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:15:04,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2020-11-30 00:15:04,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:15:04,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:15:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:15:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:15:04,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-30 00:15:04,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:15:04,728 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:15:04,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:15:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:15:04,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:15:04,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:15:04,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:15:05,273 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 19 [2020-11-30 00:15:05,475 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2020-11-30 00:15:05,669 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 28 [2020-11-30 00:15:05,820 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,821 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-30 00:15:05,821 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-11-30 00:15:05,821 INFO L274 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-11-30 00:15:05,821 INFO L270 CegarLoopResult]: At program point L36-2(lines 36 38) the Hoare annotation is: (let ((.cse0 (* 2 ULTIMATE.start_main_~i~0))) (let ((.cse1 (<= .cse0 ULTIMATE.start_main_~k~0))) (or (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= .cse0 ULTIMATE.start_main_~j~0) (<= (+ ULTIMATE.start_main_~j~0 1) ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~n~0) .cse1) (let ((.cse2 (+ (div (+ ULTIMATE.start_main_~j~0 (- 1)) 2) 1))) (and (<= .cse2 0) (= ULTIMATE.start_main_~i~0 0) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0) .cse1 (< .cse2 ULTIMATE.start_main_~n~0)))))) [2020-11-30 00:15:05,821 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:15:05,821 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:15:05,822 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-11-30 00:15:05,822 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,823 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,823 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,823 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,823 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L274 CegarLoopResult]: For program point L12-7(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L274 CegarLoopResult]: For program point L12-11(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L274 CegarLoopResult]: For program point L29(lines 29 32) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L274 CegarLoopResult]: For program point L29-1(lines 29 32) no Hoare annotation was computed. [2020-11-30 00:15:05,824 INFO L277 CegarLoopResult]: At program point L46(lines 24 48) the Hoare annotation is: true [2020-11-30 00:15:05,825 INFO L277 CegarLoopResult]: At program point L47(lines 24 48) the Hoare annotation is: true [2020-11-30 00:15:05,825 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:15:05,825 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,825 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:15:05,825 INFO L274 CegarLoopResult]: For program point L33-2(lines 33 45) no Hoare annotation was computed. [2020-11-30 00:15:05,825 INFO L270 CegarLoopResult]: At program point L33-3(lines 33 45) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~k~0)) (.cse1 (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~i~0 0) .cse0 .cse1) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse0 (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0) .cse1))) [2020-11-30 00:15:05,826 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 44) the Hoare annotation is: (let ((.cse0 (<= (* 2 ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~j~0)) (.cse1 (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~k~0)) (.cse2 (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~n~0))) (or (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse0 .cse1 .cse2) (let ((.cse3 (+ (div (+ ULTIMATE.start_main_~j~0 (- 1)) 2) 1))) (and (<= .cse3 0) .cse0 .cse1 (= ULTIMATE.start_main_~i~0 0) .cse2 (< .cse3 ULTIMATE.start_main_~n~0))))) [2020-11-30 00:15:05,826 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:15:05,826 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-30 00:15:05,826 INFO L270 CegarLoopResult]: At program point L18-2(lines 1 48) the Hoare annotation is: (let ((.cse0 (* 2 ULTIMATE.start_main_~i~0))) (and (<= .cse0 ULTIMATE.start_main_~j~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~k~0 1) ULTIMATE.start_main_~n~0) (<= (+ ULTIMATE.start_main_~j~0 1) ULTIMATE.start_main_~n~0) (<= .cse0 ULTIMATE.start_main_~k~0))) [2020-11-30 00:15:05,826 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2020-11-30 00:15:05,826 INFO L270 CegarLoopResult]: At program point L18-5(lines 17 22) the Hoare annotation is: (and (<= (* 2 ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~j~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~k~0) (<= (+ ULTIMATE.start_main_~j~0 1) ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~n~0)) [2020-11-30 00:15:05,827 INFO L274 CegarLoopResult]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2020-11-30 00:15:05,827 INFO L270 CegarLoopResult]: At program point L18-8(lines 1 48) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (* 2 ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~k~0) (<= (+ ULTIMATE.start_main_~j~0 1) ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~n~0)) [2020-11-30 00:15:05,827 INFO L274 CegarLoopResult]: For program point L35(lines 35 43) no Hoare annotation was computed. [2020-11-30 00:15:05,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:15:05 BoogieIcfgContainer [2020-11-30 00:15:05,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:15:05,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:15:05,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:15:05,874 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:15:05,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:15:01" (3/4) ... [2020-11-30 00:15:05,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:15:05,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-30 00:15:05,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:15:05,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:15:05,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:15:05,984 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_af812c81-7036-4627-8e95-0db258b3b441/bin/uautomizer/witness.graphml [2020-11-30 00:15:05,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:15:05,986 INFO L168 Benchmark]: Toolchain (without parser) took 5535.23 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 71.9 MB in the beginning and 94.6 MB in the end (delta: -22.8 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:05,986 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:15:05,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.85 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 80.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:05,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.92 ms. Allocated memory is still 102.8 MB. Free memory was 80.1 MB in the beginning and 79.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:05,988 INFO L168 Benchmark]: Boogie Preprocessor took 27.36 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:15:05,989 INFO L168 Benchmark]: RCFGBuilder took 417.51 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 63.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:05,989 INFO L168 Benchmark]: TraceAbstraction took 4616.23 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 62.9 MB in the beginning and 97.8 MB in the end (delta: -34.9 MB). Peak memory consumption was 57.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:05,990 INFO L168 Benchmark]: Witness Printer took 111.09 ms. Allocated memory is still 130.0 MB. Free memory was 97.8 MB in the beginning and 94.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:05,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.85 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 80.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.92 ms. Allocated memory is still 102.8 MB. Free memory was 80.1 MB in the beginning and 79.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.36 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 417.51 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 63.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4616.23 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 62.9 MB in the beginning and 97.8 MB in the end (delta: -34.9 MB). Peak memory consumption was 57.4 MB. Max. memory is 16.1 GB. * Witness Printer took 111.09 ms. Allocated memory is still 130.0 MB. Free memory was 97.8 MB in the beginning and 94.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((!(0 == cond) && 2 * i <= j) && n <= k) && j + 1 <= n) && k <= n - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((2 * i <= j && !(0 == cond)) && k + 1 <= n) && j + 1 <= n) && 2 * i <= k - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((!(0 == cond) && 2 * i <= j) && n <= k) && k <= n) || ((((((j + -1) / 2 + 1 <= 0 && 2 * i <= j) && n <= k) && i == 0) && k <= n) && (j + -1) / 2 + 1 < n) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((!(0 == cond) && 2 * i <= j) && j + 1 <= n) && k <= n) && 2 * i <= k) || (((((j + -1) / 2 + 1 <= 0 && i == 0) && k <= j) && 2 * i <= k) && (j + -1) / 2 + 1 < n) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((2 * i <= j && !(0 == cond)) && n <= k) && j + 1 <= n) && k <= n - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((i == 0 && n <= k) && k <= n) || (((!(0 == cond) && n <= k) && n <= j) && k <= n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 184 SDslu, 141 SDs, 0 SdLazy, 285 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 67 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 47 NumberOfFragments, 198 HoareAnnotationTreeSize, 8 FomulaSimplifications, 6409 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 1804 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 110 ConstructedInterpolants, 1 QuantifiedInterpolants, 5374 SizeOfPredicates, 7 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 4/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...