./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.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-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan --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 e274006309db7a6ae6e7d3a14420548e35b766ad ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:31:57,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:31:57,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:31:57,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:31:57,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:31:57,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:31:57,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:31:57,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:31:57,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:31:57,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:31:57,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:31:57,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:31:57,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:31:57,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:31:57,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:31:57,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:31:57,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:31:57,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:31:57,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:31:57,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:31:57,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:31:57,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:31:57,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:31:57,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:31:57,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:31:57,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:31:57,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:31:57,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:31:57,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:31:57,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:31:57,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:31:57,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:31:57,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:31:57,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:31:57,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:31:57,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:31:57,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:31:57,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:31:57,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:31:57,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:31:57,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:31:57,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:31:57,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:31:57,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:31:57,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:31:57,363 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:31:57,364 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:31:57,364 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:31:57,364 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:31:57,364 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:31:57,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:31:57,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:31:57,366 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:31:57,366 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:31:57,367 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:31:57,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:31:57,367 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:31:57,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:31:57,368 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:31:57,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:31:57,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:31:57,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:31:57,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:31:57,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:31:57,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:31:57,370 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:31:57,370 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:31:57,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:31:57,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:31:57,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:31:57,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:31:57,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:31:57,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:57,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:31:57,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:31:57,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:31:57,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:31:57,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:31:57,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:31:57,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:31:57,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:31:57,373 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-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e274006309db7a6ae6e7d3a14420548e35b766ad [2020-12-03 12:31:57,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:31:57,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:31:57,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:31:57,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:31:57,661 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:31:57,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2020-12-03 12:31:57,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/data/eac6d46ca/f13335f2be294f5a99dd4038dafec86c/FLAG328a1c51d [2020-12-03 12:31:58,296 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:31:58,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/sv-benchmarks/c/loop-acceleration/array_3-1.i [2020-12-03 12:31:58,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/data/eac6d46ca/f13335f2be294f5a99dd4038dafec86c/FLAG328a1c51d [2020-12-03 12:31:58,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/data/eac6d46ca/f13335f2be294f5a99dd4038dafec86c [2020-12-03 12:31:58,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:31:58,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:31:58,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:58,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:31:58,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:31:58,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16305579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58, skipping insertion in model container [2020-12-03 12:31:58,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:31:58,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:31:58,829 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2020-12-03 12:31:58,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:58,848 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:31:58,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2020-12-03 12:31:58,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:58,907 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:31:58,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58 WrapperNode [2020-12-03 12:31:58,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:58,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:58,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:31:58,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:31:58,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:58,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:31:58,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:31:58,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:31:58,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... [2020-12-03 12:31:58,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:31:58,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:31:58,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:31:58,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:31:58,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:31:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:31:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:31:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 12:31:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:31:59,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:31:59,290 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-03 12:31:59,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:59 BoogieIcfgContainer [2020-12-03 12:31:59,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:31:59,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:31:59,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:31:59,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:31:59,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:31:58" (1/3) ... [2020-12-03 12:31:59,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d43c8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:59, skipping insertion in model container [2020-12-03 12:31:59,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:58" (2/3) ... [2020-12-03 12:31:59,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d43c8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:59, skipping insertion in model container [2020-12-03 12:31:59,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:59" (3/3) ... [2020-12-03 12:31:59,301 INFO L111 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2020-12-03 12:31:59,315 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:31:59,319 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:31:59,330 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 12:31:59,353 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:31:59,354 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:31:59,354 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:31:59,354 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:31:59,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:31:59,354 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:31:59,355 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:31:59,355 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:31:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-03 12:31:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:31:59,372 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:59,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:31:59,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:31:59,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:59,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1893687477, now seen corresponding path program 1 times [2020-12-03 12:31:59,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:59,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218083899] [2020-12-03 12:31:59,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:31:59,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218083899] [2020-12-03 12:31:59,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:31:59,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:31:59,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601346880] [2020-12-03 12:31:59,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:31:59,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:31:59,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:31:59,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:31:59,608 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-12-03 12:31:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:31:59,701 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2020-12-03 12:31:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:31:59,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:31:59,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:31:59,712 INFO L225 Difference]: With dead ends: 30 [2020-12-03 12:31:59,712 INFO L226 Difference]: Without dead ends: 17 [2020-12-03 12:31:59,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:31:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-03 12:31:59,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2020-12-03 12:31:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-03 12:31:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-12-03 12:31:59,768 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2020-12-03 12:31:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:31:59,769 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-12-03 12:31:59,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:31:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-12-03 12:31:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:31:59,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:59,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:31:59,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:31:59,771 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:31:59,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:59,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1733130924, now seen corresponding path program 1 times [2020-12-03 12:31:59,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:59,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481854921] [2020-12-03 12:31:59,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:31:59,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481854921] [2020-12-03 12:31:59,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249650164] [2020-12-03 12:31:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:31:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:59,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-03 12:31:59,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:32:00,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:00,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:32:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:00,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1892650474] [2020-12-03 12:32:00,073 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-03 12:32:00,074 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:32:00,079 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:32:00,085 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:32:00,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:32:00,733 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:32:00,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:32:00,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3, 3] total 11 [2020-12-03 12:32:00,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041667094] [2020-12-03 12:32:00,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 12:32:00,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:00,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 12:32:00,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2020-12-03 12:32:00,930 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 7 states. [2020-12-03 12:32:00,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:00,972 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-12-03 12:32:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:32:00,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-12-03 12:32:00,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:00,974 INFO L225 Difference]: With dead ends: 17 [2020-12-03 12:32:00,974 INFO L226 Difference]: Without dead ends: 13 [2020-12-03 12:32:00,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2020-12-03 12:32:00,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-03 12:32:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-03 12:32:00,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-03 12:32:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-12-03 12:32:00,979 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2020-12-03 12:32:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:00,980 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-12-03 12:32:00,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 12:32:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-03 12:32:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:32:00,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:00,981 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:01,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-03 12:32:01,197 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:01,198 INFO L82 PathProgramCache]: Analyzing trace with hash -121190839, now seen corresponding path program 1 times [2020-12-03 12:32:01,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:01,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230589180] [2020-12-03 12:32:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 12:32:01,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230589180] [2020-12-03 12:32:01,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967238950] [2020-12-03 12:32:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:32:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:01,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-03 12:32:01,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:32:01,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 12:32:01,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:32:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 12:32:01,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [53663427] [2020-12-03 12:32:01,364 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-12-03 12:32:01,364 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:32:01,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:32:01,365 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:32:01,366 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:32:01,883 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:32:02,194 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-03 12:32:02,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:32:02,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2020-12-03 12:32:02,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762311920] [2020-12-03 12:32:02,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 12:32:02,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:02,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 12:32:02,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-03 12:32:02,202 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 7 states. [2020-12-03 12:32:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:02,266 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2020-12-03 12:32:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:02,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-03 12:32:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:02,269 INFO L225 Difference]: With dead ends: 40 [2020-12-03 12:32:02,269 INFO L226 Difference]: Without dead ends: 30 [2020-12-03 12:32:02,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-03 12:32:02,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-03 12:32:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2020-12-03 12:32:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-03 12:32:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-12-03 12:32:02,279 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 11 [2020-12-03 12:32:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:02,279 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-12-03 12:32:02,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 12:32:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-12-03 12:32:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:32:02,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:02,281 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:02,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-03 12:32:02,497 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:02,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:02,498 INFO L82 PathProgramCache]: Analyzing trace with hash -508079591, now seen corresponding path program 2 times [2020-12-03 12:32:02,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:02,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118396254] [2020-12-03 12:32:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-03 12:32:02,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118396254] [2020-12-03 12:32:02,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340954842] [2020-12-03 12:32:02,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:32:02,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-03 12:32:02,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-03 12:32:02,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 12:32:02,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:32:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-03 12:32:02,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:32:02,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-03 12:32:02,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [608761357] [2020-12-03 12:32:02,675 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-12-03 12:32:02,675 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:32:02,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:32:02,676 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:32:02,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:32:03,036 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:32:03,411 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-03 12:32:03,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:32:03,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-03 12:32:03,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199370995] [2020-12-03 12:32:03,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-03 12:32:03,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:03,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-03 12:32:03,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-12-03 12:32:03,414 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 9 states. [2020-12-03 12:32:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:03,478 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2020-12-03 12:32:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:32:03,478 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-12-03 12:32:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:03,479 INFO L225 Difference]: With dead ends: 24 [2020-12-03 12:32:03,479 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:32:03,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2020-12-03 12:32:03,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:32:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:32:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:32:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:32:03,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-03 12:32:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:03,481 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:32:03,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-03 12:32:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:32:03,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:32:03,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-12-03 12:32:03,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:32:03,884 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:32:03,885 INFO L262 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-12-03 12:32:03,885 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-03 12:32:03,885 INFO L265 CegarLoopResult]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2020-12-03 12:32:03,885 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:32:03,886 INFO L262 CegarLoopResult]: For program point L28-1(lines 28 32) no Hoare annotation was computed. [2020-12-03 12:32:03,887 INFO L258 CegarLoopResult]: At program point L28-4(lines 28 32) the Hoare annotation is: (and (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_main_~i~0) (<= |#t~string1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (= |#NULL.base| 0) (< ULTIMATE.start_main_~i~0 1024) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-12-03 12:32:03,887 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-12-03 12:32:03,888 INFO L262 CegarLoopResult]: For program point L28-5(lines 28 32) no Hoare annotation was computed. [2020-12-03 12:32:03,888 INFO L258 CegarLoopResult]: At program point L24-3(lines 24 26) the Hoare annotation is: (and (<= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_main_~i~0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= ULTIMATE.start_main_~i~0 1024) (= |#NULL.base| 0) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-12-03 12:32:03,888 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-12-03 12:32:03,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:32:03 BoogieIcfgContainer [2020-12-03 12:32:03,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:32:03,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:32:03,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:32:03,912 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:32:03,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:59" (3/4) ... [2020-12-03 12:32:03,915 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:32:03,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-03 12:32:03,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 12:32:03,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 12:32:03,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:32:03,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b224caa-64c9-414a-994d-3ed1048fac07/bin/utaipan/witness.graphml [2020-12-03 12:32:03,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:32:03,982 INFO L168 Benchmark]: Toolchain (without parser) took 5321.99 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 70.4 MB in the beginning and 53.7 MB in the end (delta: 16.7 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:03,982 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:03,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.34 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 72.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:03,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.71 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:03,987 INFO L168 Benchmark]: Boogie Preprocessor took 21.70 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 70.1 MB in the end (delta: 999.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:03,987 INFO L168 Benchmark]: RCFGBuilder took 328.63 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 54.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:03,988 INFO L168 Benchmark]: TraceAbstraction took 4616.89 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 54.0 MB in the beginning and 55.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:03,988 INFO L168 Benchmark]: Witness Printer took 69.52 ms. Allocated memory is still 134.2 MB. Free memory was 55.7 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:03,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.34 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 72.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.71 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.70 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 70.1 MB in the end (delta: 999.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.63 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 54.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4616.89 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 54.0 MB in the beginning and 55.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * Witness Printer took 69.52 ms. Allocated memory is still 134.2 MB. Free memory was 55.7 MB in the beginning and 53.7 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: 24]: Loop Invariant Derived loop invariant: (((((((((("array_3-1.c" <= 0 && 0 <= "0") && 0 <= i) && 0 <= A) && i <= 1024) && #NULL == 0) && 0 <= "array_3-1.c") && #NULL == 0) && "0" == 0) && 0 <= "array_3-1.c") && A == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((0 <= "0" && 0 <= i) && "array_3-1.c" <= 0) && 0 <= A) && #NULL == 0) && i < 1024) && 0 <= "array_3-1.c") && #NULL == 0) && 0 <= "array_3-1.c") && A == 0) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 70 SDslu, 35 SDs, 0 SdLazy, 82 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=3, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 13 NumberOfFragments, 75 HoareAnnotationTreeSize, 3 FomulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 221 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 1765 SizeOfPredicates, 2 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 36/48 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]: 660, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 410, 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: 9, TOOLS_QUANTIFIERELIM_TIME[ms]: 405, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 181, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 23, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 189, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 9, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME[ms]: 7, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 422, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 422, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 51, DAG_COMPRESSION_RETAINED_NODES: 22, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...