./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark18_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_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/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_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark18_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/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_0b2f8320-dc07-44e1-954d-4afd3e14ffef/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 f8588652636fd0551cf3f66b36ed7ad34574fc7b ................................................................................................................................................................................................................................................................................................................................................. 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 02:29:28,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:28,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:28,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:28,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:28,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:28,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:28,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:28,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:28,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:28,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:28,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:28,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:28,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:28,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:28,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:28,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:28,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:28,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:28,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:28,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:28,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:28,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:28,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:28,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:28,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:28,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:28,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:28,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:28,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:28,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:28,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:28,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:28,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:29,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:29,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:29,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:29,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:29,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:29,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:29,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:29,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:29,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:29,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:29,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:29,053 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:29,054 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:29,054 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:29,054 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:29,054 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:29,054 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:29,055 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:29,062 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:29,062 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:29,062 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:29,063 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:29,063 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:29,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:29,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:29,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:29,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:29,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:29,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:29,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:29,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:29,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:29,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:29,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:29,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:29,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:29,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:29,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:29,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:29,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:29,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:29,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:29,068 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:29,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:29,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:29,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:29,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:29,070 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_0b2f8320-dc07-44e1-954d-4afd3e14ffef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8588652636fd0551cf3f66b36ed7ad34574fc7b [2021-10-11 02:29:29,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:29,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:29,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:29,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:29,361 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:29,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-zilu/benchmark18_conjunctive.i [2021-10-11 02:29:29,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/data/3cdacc9b7/f63ab9931b864161916ccee73370e7bc/FLAG44dc77cab [2021-10-11 02:29:29,893 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:29,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/sv-benchmarks/c/loop-zilu/benchmark18_conjunctive.i [2021-10-11 02:29:29,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/data/3cdacc9b7/f63ab9931b864161916ccee73370e7bc/FLAG44dc77cab [2021-10-11 02:29:29,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/data/3cdacc9b7/f63ab9931b864161916ccee73370e7bc [2021-10-11 02:29:29,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:29,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:29,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:29,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:29,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:29,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:29" (1/1) ... [2021-10-11 02:29:29,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2ea42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:29, skipping insertion in model container [2021-10-11 02:29:29,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:29" (1/1) ... [2021-10-11 02:29:29,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:29,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:30,130 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_0b2f8320-dc07-44e1-954d-4afd3e14ffef/sv-benchmarks/c/loop-zilu/benchmark18_conjunctive.i[873,886] [2021-10-11 02:29:30,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:30,152 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:30,166 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_0b2f8320-dc07-44e1-954d-4afd3e14ffef/sv-benchmarks/c/loop-zilu/benchmark18_conjunctive.i[873,886] [2021-10-11 02:29:30,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:30,184 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:30,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30 WrapperNode [2021-10-11 02:29:30,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:30,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:30,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:30,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:30,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:30,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:30,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:30,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:30,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:30,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:30,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:30,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:30,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/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 02:29:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:30,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:30,734 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:29:30,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:30 BoogieIcfgContainer [2021-10-11 02:29:30,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:30,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:30,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:30,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:30,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:29" (1/3) ... [2021-10-11 02:29:30,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de20634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:30, skipping insertion in model container [2021-10-11 02:29:30,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30" (2/3) ... [2021-10-11 02:29:30,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de20634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:30, skipping insertion in model container [2021-10-11 02:29:30,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:30" (3/3) ... [2021-10-11 02:29:30,759 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark18_conjunctive.i [2021-10-11 02:29:30,773 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:30,776 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:30,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:30,811 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:30,811 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:30,811 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:30,811 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:30,811 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:30,812 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:30,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:30,812 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:30,824 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:29:30,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:29:30,829 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:30,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:29:30,830 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:30,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:30,836 INFO L82 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2021-10-11 02:29:30,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:30,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780455779] [2021-10-11 02:29:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:31,131 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 02:29:31,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780455779] [2021-10-11 02:29:31,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:31,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:31,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222776628] [2021-10-11 02:29:31,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:31,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:31,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:31,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:31,160 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-10-11 02:29:31,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:31,202 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2021-10-11 02:29:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:31,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:29:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:31,223 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:29:31,223 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:29:31,226 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 02:29:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:29:31,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:29:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:29:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:29:31,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:29:31,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:31,265 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:29:31,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:29:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:29:31,265 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:31,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:29:31,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:31,267 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:31,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:31,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1839242300, now seen corresponding path program 1 times [2021-10-11 02:29:31,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:31,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051535808] [2021-10-11 02:29:31,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:31,462 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 02:29:31,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051535808] [2021-10-11 02:29:31,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109016798] [2021-10-11 02:29:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/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 02:29:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:31,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-11 02:29:31,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:31,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:29:31,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:29:31,703 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 02:29:31,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:31,724 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:29:31,775 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 02:29:31,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [363633682] [2021-10-11 02:29:31,798 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:29:31,798 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:29:31,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:29:31,810 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:29:31,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:29:32,328 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:29:32,484 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2021-10-11 02:29:32,649 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-10-11 02:29:32,851 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:29:32,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:29:32,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-10-11 02:29:32,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794143414] [2021-10-11 02:29:32,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:29:32,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:32,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:29:32,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:29:32,855 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 10 states. [2021-10-11 02:29:32,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:32,915 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-11 02:29:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:32,915 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 6 [2021-10-11 02:29:32,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:32,915 INFO L225 Difference]: With dead ends: 9 [2021-10-11 02:29:32,916 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:29:32,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-10-11 02:29:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:29:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:29:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:29:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:29:32,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:29:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:32,919 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:29:32,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:29:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:29:32,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:33,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:29:33,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:29:33,172 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:29:33,172 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-11 02:29:33,172 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-11 02:29:33,172 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:29:33,172 INFO L265 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-10-11 02:29:33,173 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-10-11 02:29:33,173 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 26) the Hoare annotation is: (and (< ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~n~0 1)) (< ULTIMATE.start_main_~i~0 (+ ULTIMATE.start_main_~k~0 1)) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~i~0)) [2021-10-11 02:29:33,173 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-11 02:29:33,173 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-11 02:29:33,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:33 BoogieIcfgContainer [2021-10-11 02:29:33,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:33,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:33,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:33,187 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:33,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:30" (3/4) ... [2021-10-11 02:29:33,191 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:33,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:29:33,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:29:33,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:33,199 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:33,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2f8320-dc07-44e1-954d-4afd3e14ffef/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:33,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:33,233 INFO L168 Benchmark]: Toolchain (without parser) took 3314.55 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 67.3 MB in the beginning and 58.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,233 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:33,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.44 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 67.3 MB in the beginning and 97.4 MB in the end (delta: -30.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.33 ms. Allocated memory is still 121.6 MB. Free memory was 97.4 MB in the beginning and 96.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,235 INFO L168 Benchmark]: Boogie Preprocessor took 46.47 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 95.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:33,236 INFO L168 Benchmark]: RCFGBuilder took 460.17 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 80.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,236 INFO L168 Benchmark]: TraceAbstraction took 2449.16 ms. Allocated memory is still 121.6 MB. Free memory was 80.4 MB in the beginning and 61.3 MB in the end (delta: 19.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,237 INFO L168 Benchmark]: Witness Printer took 44.41 ms. Allocated memory is still 121.6 MB. Free memory was 61.3 MB in the beginning and 58.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.44 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 67.3 MB in the beginning and 97.4 MB in the end (delta: -30.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.33 ms. Allocated memory is still 121.6 MB. Free memory was 97.4 MB in the beginning and 96.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.47 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 95.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 460.17 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 80.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2449.16 ms. Allocated memory is still 121.6 MB. Free memory was 80.4 MB in the beginning and 61.3 MB in the end (delta: 19.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * Witness Printer took 44.41 ms. Allocated memory is still 121.6 MB. Free memory was 61.3 MB in the beginning and 58.2 MB in the end (delta: 3.1 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: 24]: Loop Invariant Derived loop invariant: (k < n + 1 && i < k + 1) && k <= i - 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: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 7 SDs, 0 SdLazy, 19 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 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, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 472 SizeOfPredicates, 7 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 13 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...