./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nest-if3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/nest-if3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a6ea3567a534d80cc2c4496700797b4364bacf8f ................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:48:27,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:48:27,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:48:27,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:48:27,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:48:27,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:48:27,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:48:27,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:48:27,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:48:27,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:48:27,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:48:27,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:48:27,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:48:27,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:48:27,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:48:27,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:48:27,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:48:27,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:48:27,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:48:27,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:48:27,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:48:27,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:48:27,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:48:27,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:48:27,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:48:27,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:48:27,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:48:27,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:48:27,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:48:27,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:48:27,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:48:27,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:48:27,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:48:27,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:48:27,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:48:27,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:48:27,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:48:27,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:48:27,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:48:27,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:48:27,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:48:27,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:48:27,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:48:27,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:48:27,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:48:27,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:48:27,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:48:27,224 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:48:27,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:48:27,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:48:27,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:48:27,231 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:48:27,233 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:48:27,233 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:48:27,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:48:27,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:48:27,234 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:48:27,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:48:27,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:48:27,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:48:27,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:48:27,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:48:27,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:48:27,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:48:27,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:48:27,236 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:48:27,237 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:48:27,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:48:27,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:48:27,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:48:27,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:48:27,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:48:27,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:48:27,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:48:27,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:48:27,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:48:27,241 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:48:27,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:48:27,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:48:27,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:48:27,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:48:27,242 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6ea3567a534d80cc2c4496700797b4364bacf8f [2021-10-13 07:48:27,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:48:27,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:48:27,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:48:27,592 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:48:27,593 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:48:27,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loop-invgen/nest-if3.i [2021-10-13 07:48:27,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/data/1a0c6b59a/fc78786c0bff42ae8d54352dd99197d2/FLAG6bd957b31 [2021-10-13 07:48:28,244 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:48:28,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/sv-benchmarks/c/loop-invgen/nest-if3.i [2021-10-13 07:48:28,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/data/1a0c6b59a/fc78786c0bff42ae8d54352dd99197d2/FLAG6bd957b31 [2021-10-13 07:48:28,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/data/1a0c6b59a/fc78786c0bff42ae8d54352dd99197d2 [2021-10-13 07:48:28,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:48:28,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:48:28,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:48:28,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:48:28,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:48:28,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a20717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28, skipping insertion in model container [2021-10-13 07:48:28,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:48:28,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:48:28,800 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/sv-benchmarks/c/loop-invgen/nest-if3.i[893,906] [2021-10-13 07:48:28,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:48:28,825 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:48:28,839 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/sv-benchmarks/c/loop-invgen/nest-if3.i[893,906] [2021-10-13 07:48:28,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:48:28,858 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:48:28,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28 WrapperNode [2021-10-13 07:48:28,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:48:28,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:48:28,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:48:28,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:48:28,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:48:28,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:48:28,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:48:28,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:48:28,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:48:28,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:48:28,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:48:28,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:48:28,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (1/1) ... [2021-10-13 07:48:28,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:48:28,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:48:29,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:48:29,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:48:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:48:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:48:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:48:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:48:29,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:48:29,337 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 07:48:29,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:48:29 BoogieIcfgContainer [2021-10-13 07:48:29,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:48:29,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:48:29,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:48:29,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:48:29,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:48:28" (1/3) ... [2021-10-13 07:48:29,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf304bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:48:29, skipping insertion in model container [2021-10-13 07:48:29,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:48:28" (2/3) ... [2021-10-13 07:48:29,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf304bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:48:29, skipping insertion in model container [2021-10-13 07:48:29,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:48:29" (3/3) ... [2021-10-13 07:48:29,369 INFO L111 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2021-10-13 07:48:29,376 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:48:29,376 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:48:29,448 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:48:29,464 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:48:29,464 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:48:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:48:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:48:29,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:48:29,488 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:48:29,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:48:29,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:48:29,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1150189689, now seen corresponding path program 1 times [2021-10-13 07:48:29,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:48:29,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186898073] [2021-10-13 07:48:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:48:29,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:48:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:48:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:48:29,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:48:29,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186898073] [2021-10-13 07:48:29,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186898073] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:48:29,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:48:29,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:48:29,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371700504] [2021-10-13 07:48:29,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:48:29,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:48:29,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:48:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:48:29,812 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:48:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:48:29,895 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-10-13 07:48:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:48:29,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 07:48:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:48:29,904 INFO L225 Difference]: With dead ends: 27 [2021-10-13 07:48:29,904 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:48:29,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:48:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:48:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:48:29,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:48:29,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:48:29,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-13 07:48:29,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:48:29,943 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:48:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:48:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:48:29,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:48:29,947 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:48:29,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:48:29,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:48:29,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:48:29,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:48:29,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:48:29,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:48:30,029 INFO L853 garLoopResultBuilder]: At program point L31-3(lines 31 37) the Hoare annotation is: (<= 1 ULTIMATE.start_main_~l~0) [2021-10-13 07:48:30,029 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-13 07:48:30,030 INFO L853 garLoopResultBuilder]: At program point L32-2(lines 32 34) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start_main_~l~0)) [2021-10-13 07:48:30,030 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:48:30,030 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-13 07:48:30,031 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-13 07:48:30,031 INFO L860 garLoopResultBuilder]: At program point L24(lines 24 38) the Hoare annotation is: true [2021-10-13 07:48:30,031 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:48:30,031 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-13 07:48:30,033 INFO L857 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-10-13 07:48:30,033 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-13 07:48:30,034 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 1 38) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start_main_~l~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-13 07:48:30,039 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:48:30,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:48:30 BoogieIcfgContainer [2021-10-13 07:48:30,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:48:30,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:48:30,069 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:48:30,070 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:48:30,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:48:29" (3/4) ... [2021-10-13 07:48:30,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:48:30,087 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-13 07:48:30,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 07:48:30,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:48:30,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:48:30,187 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:48:30,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:48:30,189 INFO L168 Benchmark]: Toolchain (without parser) took 1606.18 ms. Allocated memory was 88.1 MB in the beginning and 125.8 MB in the end (delta: 37.7 MB). Free memory was 59.4 MB in the beginning and 101.8 MB in the end (delta: -42.4 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:48:30,190 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:48:30,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.25 ms. Allocated memory was 88.1 MB in the beginning and 125.8 MB in the end (delta: 37.7 MB). Free memory was 59.2 MB in the beginning and 102.5 MB in the end (delta: -43.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:48:30,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.10 ms. Allocated memory is still 125.8 MB. Free memory was 102.5 MB in the beginning and 100.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:48:30,191 INFO L168 Benchmark]: Boogie Preprocessor took 55.57 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 99.9 MB in the end (delta: 958.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:48:30,192 INFO L168 Benchmark]: RCFGBuilder took 379.25 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 88.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:48:30,192 INFO L168 Benchmark]: TraceAbstraction took 719.02 ms. Allocated memory is still 125.8 MB. Free memory was 88.3 MB in the beginning and 65.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:48:30,193 INFO L168 Benchmark]: Witness Printer took 118.86 ms. Allocated memory is still 125.8 MB. Free memory was 65.2 MB in the beginning and 102.3 MB in the end (delta: -37.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:48:30,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.25 ms. Allocated memory was 88.1 MB in the beginning and 125.8 MB in the end (delta: 37.7 MB). Free memory was 59.2 MB in the beginning and 102.5 MB in the end (delta: -43.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.10 ms. Allocated memory is still 125.8 MB. Free memory was 102.5 MB in the beginning and 100.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.57 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 99.9 MB in the end (delta: 958.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 379.25 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 88.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 719.02 ms. Allocated memory is still 125.8 MB. Free memory was 88.3 MB in the beginning and 65.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 118.86 ms. Allocated memory is still 125.8 MB. Free memory was 65.2 MB in the beginning and 102.3 MB in the end (delta: -37.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 592.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 12.4ms, AutomataDifference: 126.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 79.7ms, InitialAbstractionConstructionTime: 11.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 14 SDslu, 18 SDs, 0 SdLazy, 21 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 54.9ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 16.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 6.7ms SsaConstructionTime, 39.8ms SatisfiabilityAnalysisTime, 134.5ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 <= i && 1 <= l - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (1 <= i && 1 <= l) && !(0 == cond) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= l RESULT: Ultimate proved your program to be correct! [2021-10-13 07:48:30,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd6e31c-3c7d-410e-830b-1fe77306d293/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...