./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI --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 edd6561cca2d352ad9794df9d30edf5094107348 ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:25,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:25,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:25,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:25,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:25,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:25,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:25,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:25,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:25,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:25,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:25,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:25,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:25,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:25,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:25,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:25,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:25,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:25,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:25,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:25,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:25,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:25,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:25,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:25,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:25,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:25,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:25,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:25,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:25,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:25,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:25,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:25,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:25,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:25,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:25,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:25,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:25,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:25,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:25,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:25,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:25,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:25,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:25,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:25,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:25,541 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:25,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:25,541 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:25,541 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:25,542 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:25,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:25,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:25,542 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:25,543 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:25,543 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:25,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:25,543 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:25,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:25,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:25,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:25,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:25,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:25,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:25,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:25,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:25,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:25,550 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:25,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:25,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:25,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:25,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:25,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:25,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:25,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:25,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:25,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:25,553 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:25,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:25,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:25,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:25,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:25,557 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_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd6561cca2d352ad9794df9d30edf5094107348 [2021-10-11 02:32:25,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:25,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:25,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:25,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:25,874 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:25,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2021-10-11 02:32:25,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/data/83635c152/017ea38152434f12b08539f369e424b4/FLAG0a6b2a225 [2021-10-11 02:32:26,463 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:26,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2021-10-11 02:32:26,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/data/83635c152/017ea38152434f12b08539f369e424b4/FLAG0a6b2a225 [2021-10-11 02:32:26,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/data/83635c152/017ea38152434f12b08539f369e424b4 [2021-10-11 02:32:26,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:26,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:26,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:26,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:26,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:26,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:26" (1/1) ... [2021-10-11 02:32:26,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0bbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:26, skipping insertion in model container [2021-10-11 02:32:26,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:26" (1/1) ... [2021-10-11 02:32:26,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:26,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:27,034 WARN L226 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_c0704da4-6711-4335-9902-dc995d5eb11a/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2021-10-11 02:32:27,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:27,054 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:27,066 WARN L226 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_c0704da4-6711-4335-9902-dc995d5eb11a/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2021-10-11 02:32:27,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:27,083 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:27,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27 WrapperNode [2021-10-11 02:32:27,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:27,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:27,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:27,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:27,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:27,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:27,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:27,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:27,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:27,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:27,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:27,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:27,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:27,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:27,439 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:32:27,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:27 BoogieIcfgContainer [2021-10-11 02:32:27,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:27,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:27,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:27,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:27,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:26" (1/3) ... [2021-10-11 02:32:27,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f924cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:27, skipping insertion in model container [2021-10-11 02:32:27,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (2/3) ... [2021-10-11 02:32:27,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f924cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:27, skipping insertion in model container [2021-10-11 02:32:27,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:27" (3/3) ... [2021-10-11 02:32:27,452 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2021-10-11 02:32:27,467 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:27,471 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:27,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:27,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:27,507 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:27,508 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:27,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:27,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:27,508 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:27,508 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:27,508 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-10-11 02:32:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:32:27,528 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:27,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:32:27,530 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:27,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1983092628, now seen corresponding path program 1 times [2021-10-11 02:32:27,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:27,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116859723] [2021-10-11 02:32:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:27,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116859723] [2021-10-11 02:32:27,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:27,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:27,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819465465] [2021-10-11 02:32:27,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:27,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:27,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:27,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:27,711 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2021-10-11 02:32:27,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:27,743 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2021-10-11 02:32:27,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:27,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 02:32:27,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:27,754 INFO L225 Difference]: With dead ends: 26 [2021-10-11 02:32:27,754 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:32:27,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:32:27,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2021-10-11 02:32:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:32:27,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-11 02:32:27,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-10-11 02:32:27,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:27,804 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-11 02:32:27,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:27,804 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-11 02:32:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:27,805 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:27,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:27,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:27,821 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:27,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:27,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1323983189, now seen corresponding path program 1 times [2021-10-11 02:32:27,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:27,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095241420] [2021-10-11 02:32:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:27,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095241420] [2021-10-11 02:32:27,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:27,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:27,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129119066] [2021-10-11 02:32:27,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:27,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:27,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:27,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:27,889 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2021-10-11 02:32:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:27,909 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-11 02:32:27,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:27,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:32:27,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:27,910 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:32:27,910 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:32:27,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:32:27,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:32:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:32:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 02:32:27,914 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-10-11 02:32:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:27,915 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 02:32:27,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-11 02:32:27,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:27,916 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:27,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:27,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:27,916 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:27,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:27,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1903903079, now seen corresponding path program 1 times [2021-10-11 02:32:27,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:27,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699474714] [2021-10-11 02:32:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:27,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699474714] [2021-10-11 02:32:27,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522793458] [2021-10-11 02:32:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:28,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:32:28,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130633353] [2021-10-11 02:32:28,173 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-11 02:32:28,174 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:32:28,179 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:32:28,186 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:32:28,187 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:32:28,817 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:32:28,932 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-10-11 02:32:29,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:32:29,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 11 [2021-10-11 02:32:29,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413664155] [2021-10-11 02:32:29,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:32:29,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:29,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:32:29,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:32:29,197 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2021-10-11 02:32:29,333 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2021-10-11 02:32:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:29,503 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-11 02:32:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:32:29,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2021-10-11 02:32:29,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:29,505 INFO L225 Difference]: With dead ends: 9 [2021-10-11 02:32:29,505 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:32:29,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:32:29,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:32:29,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:32:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:32:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:32:29,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 02:32:29,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:29,509 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:32:29,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:32:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:32:29,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:32:29,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 02:32:29,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:32:29,909 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-10-11 02:32:29,912 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:32:29,913 INFO L265 CegarLoopResult]: At program point L29(lines 19 30) the Hoare annotation is: true [2021-10-11 02:32:29,913 INFO L258 CegarLoopResult]: At program point L23-2(lines 23 27) the Hoare annotation is: (let ((.cse0 (= |#t~string1.offset| 0)) (.cse1 (= |#NULL.base| 0)) (.cse3 (= |#NULL.offset| 0)) (.cse4 (= |#t~string0.offset| 0))) (or (let ((.cse2 (select |#memory_int| |#t~string0.base|))) (and .cse0 (<= 0 ULTIMATE.start_main_~i~0) (= (select |#length| |#t~string1.base|) 26) (<= 0 ULTIMATE.start_main_~c~0) (<= ULTIMATE.start_main_~i~0 0) .cse1 (= (select .cse2 |#t~string0.offset|) 48) (= (select .cse2 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= 2 (select |#length| |#t~string0.base|)) (<= ULTIMATE.start_main_~c~0 2147483647) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) .cse3 (= (select |#valid| |#t~string1.base|) 1) .cse4)) (and .cse0 (<= 0 |#t~string0.base|) (< ULTIMATE.start_main_~i~0 101) .cse1 (<= ULTIMATE.start_main_~i~0 (+ ULTIMATE.start_main_~c~0 1)) (<= 1 ULTIMATE.start_main_~i~0) .cse3 .cse4 (<= 0 |#t~string1.base|) (<= 0 |#StackHeapBarrier|)))) [2021-10-11 02:32:29,914 INFO L262 CegarLoopResult]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2021-10-11 02:32:29,914 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-11 02:32:29,914 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:32:29,914 INFO L262 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2021-10-11 02:32:29,914 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-10-11 02:32:29,914 INFO L262 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-11 02:32:29,915 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-11 02:32:29,915 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-11 02:32:29,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:29 BoogieIcfgContainer [2021-10-11 02:32:29,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:29,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:29,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:29,938 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:29,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:27" (3/4) ... [2021-10-11 02:32:29,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:29,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:32:29,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:32:29,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:29,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:29,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0704da4-6711-4335-9902-dc995d5eb11a/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:29,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:29,984 INFO L168 Benchmark]: Toolchain (without parser) took 3154.29 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 93.7 MB in the beginning and 62.2 MB in the end (delta: 31.5 MB). Peak memory consumption was 66.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:29,985 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 102.6 MB in the end (delta: 21.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:29,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.07 ms. Allocated memory is still 130.0 MB. Free memory was 93.3 MB in the beginning and 103.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:29,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.32 ms. Allocated memory is still 130.0 MB. Free memory was 103.7 MB in the beginning and 102.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:29,986 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 ms. Allocated memory is still 130.0 MB. Free memory was 102.2 MB in the beginning and 101.6 MB in the end (delta: 534.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:29,987 INFO L168 Benchmark]: RCFGBuilder took 285.11 ms. Allocated memory is still 130.0 MB. Free memory was 101.6 MB in the beginning and 88.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:29,987 INFO L168 Benchmark]: TraceAbstraction took 2493.81 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 87.5 MB in the beginning and 64.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:29,988 INFO L168 Benchmark]: Witness Printer took 45.48 ms. Allocated memory is still 165.7 MB. Free memory was 64.3 MB in the beginning and 62.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:29,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 102.6 MB in the end (delta: 21.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.07 ms. Allocated memory is still 130.0 MB. Free memory was 93.3 MB in the beginning and 103.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.32 ms. Allocated memory is still 130.0 MB. Free memory was 103.7 MB in the beginning and 102.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.79 ms. Allocated memory is still 130.0 MB. Free memory was 102.2 MB in the beginning and 101.6 MB in the end (delta: 534.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 285.11 ms. Allocated memory is still 130.0 MB. Free memory was 101.6 MB in the beginning and 88.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2493.81 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 87.5 MB in the beginning and 64.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. * Witness Printer took 45.48 ms. Allocated memory is still 165.7 MB. Free memory was 64.3 MB in the beginning and 62.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((((((((((((("benchmark10_conjunctive.c" == 0 && 0 <= i) && unknown-#length-unknown["benchmark10_conjunctive.c"] == 26) && 0 <= c) && i <= 0) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 2 == unknown-#length-unknown["0"]) && c <= 2147483647) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark10_conjunctive.c") && #NULL == 0) && \valid["benchmark10_conjunctive.c"] == 1) && "0" == 0) || ((((((((("benchmark10_conjunctive.c" == 0 && 0 <= "0") && i < 101) && #NULL == 0) && i <= c + 1) && 1 <= i) && #NULL == 0) && "0" == 0) && 0 <= "benchmark10_conjunctive.c") && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 23 SDslu, 6 SDs, 0 SdLazy, 30 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 110 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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: OVERALL_TIME[ms]: 644, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 12, TOOLS_POST_TIME[ms]: 308, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 12, TOOLS_QUANTIFIERELIM_TIME[ms]: 294, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 243, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 26, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 256, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 16, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME[ms]: 13, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 330, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 329, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 47, DAG_COMPRESSION_RETAINED_NODES: 23, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...