./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark37_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_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/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_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/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_a5c4006d-1581-4382-8a72-3e7b5186423a/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 8a833a1b9e7471f6481f3d298fb7b827e4068305 ............................................................................................................................................................................................................................................................................................................................................... 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 02:29:13,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:13,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:13,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:13,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:13,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:13,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:13,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:13,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:13,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:13,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:13,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:13,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:13,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:13,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:13,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:13,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:13,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:13,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:13,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:13,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:13,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:13,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:13,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:13,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:13,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:13,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:13,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:13,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:13,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:13,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:13,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:13,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:13,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:13,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:13,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:13,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:13,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:13,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:13,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:13,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:13,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:13,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:13,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:13,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:13,694 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:13,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:13,695 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:13,695 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:13,695 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:13,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:13,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:13,704 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:13,704 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:13,705 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:13,705 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:13,705 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:13,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:13,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:13,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:13,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:13,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:13,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:13,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:13,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:13,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:13,708 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:13,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:13,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:13,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:13,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:13,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:13,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:13,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:13,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:13,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:13,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:13,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:13,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:13,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:13,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:13,718 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_a5c4006d-1581-4382-8a72-3e7b5186423a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a833a1b9e7471f6481f3d298fb7b827e4068305 [2021-10-11 02:29:14,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:14,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:14,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:14,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:14,081 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:14,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2021-10-11 02:29:14,172 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/data/58f83e1f3/e364d9d2e3d348fb992d97ffa3e0ae25/FLAGb79d9d0d9 [2021-10-11 02:29:14,794 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:14,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2021-10-11 02:29:14,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/data/58f83e1f3/e364d9d2e3d348fb992d97ffa3e0ae25/FLAGb79d9d0d9 [2021-10-11 02:29:15,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/data/58f83e1f3/e364d9d2e3d348fb992d97ffa3e0ae25 [2021-10-11 02:29:15,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:15,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:15,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:15,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:15,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:15,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421f7f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15, skipping insertion in model container [2021-10-11 02:29:15,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:15,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:15,376 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_a5c4006d-1581-4382-8a72-3e7b5186423a/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i[873,886] [2021-10-11 02:29:15,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:15,395 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:15,408 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_a5c4006d-1581-4382-8a72-3e7b5186423a/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i[873,886] [2021-10-11 02:29:15,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:15,424 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:15,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15 WrapperNode [2021-10-11 02:29:15,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:15,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:15,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:15,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:15,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:15,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:15,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:15,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:15,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... [2021-10-11 02:29:15,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:15,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:15,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:15,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:15,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/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 02:29:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:15,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:15,920 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:29:15,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:15 BoogieIcfgContainer [2021-10-11 02:29:15,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:15,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:15,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:15,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:15,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:15" (1/3) ... [2021-10-11 02:29:15,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da98bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:15, skipping insertion in model container [2021-10-11 02:29:15,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:15" (2/3) ... [2021-10-11 02:29:15,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da98bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:15, skipping insertion in model container [2021-10-11 02:29:15,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:15" (3/3) ... [2021-10-11 02:29:15,934 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark37_conjunctive.i [2021-10-11 02:29:15,948 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:15,951 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:15,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:15,983 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:15,983 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:15,984 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:15,984 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:15,984 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:15,984 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:15,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:15,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:29:16,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:29:16,015 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:16,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:29:16,017 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:16,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:16,022 INFO L82 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2021-10-11 02:29:16,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:16,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314095227] [2021-10-11 02:29:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:16,262 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 02:29:16,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314095227] [2021-10-11 02:29:16,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:16,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:16,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868967042] [2021-10-11 02:29:16,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:16,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:16,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:16,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:16,293 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:29:16,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:16,387 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:29:16,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:16,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:29:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:16,399 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:29:16,400 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:29:16,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:16,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:29:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:29:16,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:29:16,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:29:16,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:29:16,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:16,437 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:29:16,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:29:16,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:29:16,438 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:16,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:29:16,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:16,439 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:16,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1839242300, now seen corresponding path program 1 times [2021-10-11 02:29:16,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:16,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204231480] [2021-10-11 02:29:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:16,503 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 02:29:16,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204231480] [2021-10-11 02:29:16,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720680066] [2021-10-11 02:29:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/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 02:29:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:16,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:29:16,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:16,675 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 02:29:16,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:16,723 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:29:16,770 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 02:29:16,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [680119501] [2021-10-11 02:29:16,804 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:29:16,804 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:29:16,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:29:16,815 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:29:16,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:29:17,051 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:29:17,218 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-10-11 02:29:17,379 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2021-10-11 02:29:17,563 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-10-11 02:29:17,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:29:17,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 10 [2021-10-11 02:29:17,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886556313] [2021-10-11 02:29:17,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:17,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:17,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:17,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:29:17,571 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2021-10-11 02:29:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:17,595 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-11 02:29:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:17,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2021-10-11 02:29:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:17,600 INFO L225 Difference]: With dead ends: 7 [2021-10-11 02:29:17,600 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:29:17,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:29:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:29:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:29:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:29:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:29:17,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:29:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:17,603 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:29:17,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:29:17,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:17,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:29:17,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:29:17,897 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:29:17,898 INFO L258 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= (select |#length| |#t~string1.base|) 26) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= 2 (select |#length| |#t~string0.base|)) (<= ULTIMATE.start_main_~y~0 2147483647) (< |#StackHeapBarrier| |#t~string0.base|) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~x~0) (= (select |#valid| |#t~string0.base|) 1) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2021-10-11 02:29:17,898 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-11 02:29:17,898 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:29:17,899 INFO L265 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-10-11 02:29:17,899 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-10-11 02:29:17,899 INFO L262 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-11 02:29:17,900 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-11 02:29:17,900 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-11 02:29:17,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:17 BoogieIcfgContainer [2021-10-11 02:29:17,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:17,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:17,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:17,932 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:17,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:15" (3/4) ... [2021-10-11 02:29:17,938 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:17,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:29:17,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:29:17,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:17,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:17,984 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c4006d-1581-4382-8a72-3e7b5186423a/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:17,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:17,985 INFO L168 Benchmark]: Toolchain (without parser) took 2845.23 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 74.9 MB in the beginning and 63.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:17,986 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 84.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:17,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.75 ms. Allocated memory is still 111.1 MB. Free memory was 74.7 MB in the beginning and 86.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:17,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:17,987 INFO L168 Benchmark]: Boogie Preprocessor took 19.67 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 84.6 MB in the end (delta: 919.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:17,988 INFO L168 Benchmark]: RCFGBuilder took 442.91 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 71.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:17,988 INFO L168 Benchmark]: TraceAbstraction took 2007.34 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 70.5 MB in the beginning and 65.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:17,989 INFO L168 Benchmark]: Witness Printer took 52.06 ms. Allocated memory is still 134.2 MB. Free memory was 65.6 MB in the beginning and 63.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:17,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 84.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.75 ms. Allocated memory is still 111.1 MB. Free memory was 74.7 MB in the beginning and 86.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.67 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 84.6 MB in the end (delta: 919.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 442.91 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 71.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2007.34 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 70.5 MB in the beginning and 65.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * Witness Printer took 52.06 ms. Allocated memory is still 134.2 MB. Free memory was 65.6 MB in the beginning and 63.5 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: ((((((((((((((("benchmark37_conjunctive.c" == 0 && unknown-#length-unknown["benchmark37_conjunctive.c"] == 26) && #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"]) && y <= 2147483647) && unknown-#StackHeapBarrier-unknown < "0") && y == x) && 0 <= x) && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark37_conjunctive.c") && #NULL == 0) && \valid["benchmark37_conjunctive.c"] == 1) && "0" == 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 12 SDslu, 11 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 73 HoareAnnotationTreeSize, 2 FomulaSimplifications, 76 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 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]: 247, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 5, TOOLS_POST_TIME[ms]: 180, 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: 5, TOOLS_QUANTIFIERELIM_TIME[ms]: 177, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 166, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 13, 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: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 4, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 10, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 17, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 17, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, 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]: 4, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 14, DAG_COMPRESSION_PROCESSED_NODES: 33, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...