./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.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_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/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_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/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_50d19cc2-4826-4feb-b877-713c7d9d917e/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 3a501c55d63fd9a2de7fb7a25d7fd900352e0181 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:50,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:50,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:50,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:50,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:50,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:50,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:50,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:50,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:50,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:50,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:50,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:50,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:50,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:50,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:50,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:50,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:50,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:50,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:50,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:50,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:50,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:50,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:50,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:50,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:50,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:50,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:50,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:50,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:50,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:50,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:50,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:50,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:50,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:50,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:50,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:50,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:50,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:50,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:50,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:50,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:50,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:50,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:50,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:50,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:50,248 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:50,249 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:50,249 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:50,249 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:50,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:50,250 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:50,250 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:50,250 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:50,250 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:50,251 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:50,251 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:50,251 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:50,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:50,252 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:50,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:50,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:50,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:50,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:50,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:50,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:50,254 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:50,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:50,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:50,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:50,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:50,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:50,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:50,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:50,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:50,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:50,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:50,257 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:50,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:50,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:50,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:50,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:50,258 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_50d19cc2-4826-4feb-b877-713c7d9d917e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a501c55d63fd9a2de7fb7a25d7fd900352e0181 [2021-10-11 02:32:50,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:50,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:50,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:50,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:50,534 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:50,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2021-10-11 02:32:50,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/data/56c2764d2/74a0d4d423994e908627fdc76ab65cc9/FLAG632b20aca [2021-10-11 02:32:51,336 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:51,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2021-10-11 02:32:51,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/data/56c2764d2/74a0d4d423994e908627fdc76ab65cc9/FLAG632b20aca [2021-10-11 02:32:51,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/data/56c2764d2/74a0d4d423994e908627fdc76ab65cc9 [2021-10-11 02:32:51,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:51,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:51,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:51,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:51,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:51,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:51" (1/1) ... [2021-10-11 02:32:51,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8fadb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:51, skipping insertion in model container [2021-10-11 02:32:51,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:51" (1/1) ... [2021-10-11 02:32:51,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:51,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:51,984 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_50d19cc2-4826-4feb-b877-713c7d9d917e/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2021-10-11 02:32:51,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:51,998 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:52,048 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_50d19cc2-4826-4feb-b877-713c7d9d917e/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2021-10-11 02:32:52,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:52,105 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:52,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52 WrapperNode [2021-10-11 02:32:52,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:52,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:52,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:52,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:52,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:52,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:52,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:52,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:52,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:52,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:52,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:52,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:52,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:32:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:32:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:32:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:32:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 02:32:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:53,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:53,065 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-11 02:32:53,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:53 BoogieIcfgContainer [2021-10-11 02:32:53,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:53,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:53,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:53,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:53,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:51" (1/3) ... [2021-10-11 02:32:53,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e9679f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:53, skipping insertion in model container [2021-10-11 02:32:53,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (2/3) ... [2021-10-11 02:32:53,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e9679f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:53, skipping insertion in model container [2021-10-11 02:32:53,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:53" (3/3) ... [2021-10-11 02:32:53,077 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2021-10-11 02:32:53,091 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:53,095 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:53,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:53,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:53,130 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:53,130 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:53,130 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:53,131 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:53,131 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:53,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:53,131 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2021-10-11 02:32:53,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:53,149 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:53,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:53,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:53,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:53,156 INFO L82 PathProgramCache]: Analyzing trace with hash 73302926, now seen corresponding path program 1 times [2021-10-11 02:32:53,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:53,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459942868] [2021-10-11 02:32:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:53,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459942868] [2021-10-11 02:32:53,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:53,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:53,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228737875] [2021-10-11 02:32:53,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:53,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:53,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:53,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,368 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2021-10-11 02:32:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:53,425 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2021-10-11 02:32:53,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:53,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2021-10-11 02:32:53,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:53,435 INFO L225 Difference]: With dead ends: 27 [2021-10-11 02:32:53,436 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:32:53,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:32:53,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-11 02:32:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:32:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-10-11 02:32:53,473 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 7 [2021-10-11 02:32:53,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:53,473 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-11 02:32:53,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-11 02:32:53,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:53,474 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:53,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:53,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:53,475 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:53,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:53,476 INFO L82 PathProgramCache]: Analyzing trace with hash -401203551, now seen corresponding path program 1 times [2021-10-11 02:32:53,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:53,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583551402] [2021-10-11 02:32:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:53,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583551402] [2021-10-11 02:32:53,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545254792] [2021-10-11 02:32:53,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:53,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:53,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:53,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:53,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [935006775] [2021-10-11 02:32:53,853 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-11 02:32:53,853 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:32:53,857 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:32:53,862 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:32:53,863 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:32:54,321 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:32:55,149 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-10-11 02:32:55,344 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-10-11 02:32:55,366 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:32:55,388 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:32:56,290 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:32:56,730 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-10-11 02:32:56,886 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-10-11 02:32:57,010 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:32:57,031 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:32:57,855 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:32:58,094 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-10-11 02:32:59,134 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-10-11 02:32:59,431 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-10-11 02:32:59,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:32:59,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 7 [2021-10-11 02:32:59,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846733815] [2021-10-11 02:32:59,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:59,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:59,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:59,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:59,439 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand 5 states. [2021-10-11 02:32:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:59,579 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2021-10-11 02:32:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:59,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:32:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:59,581 INFO L225 Difference]: With dead ends: 18 [2021-10-11 02:32:59,581 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:32:59,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:59,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:32:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-11 02:32:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:32:59,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-11 02:32:59,588 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 9 [2021-10-11 02:32:59,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:59,589 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 02:32:59,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:59,589 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-10-11 02:32:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:32:59,590 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:59,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:59,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:32:59,803 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:59,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1970333447, now seen corresponding path program 1 times [2021-10-11 02:32:59,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:59,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461839000] [2021-10-11 02:32:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:32:59,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461839000] [2021-10-11 02:32:59,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918857511] [2021-10-11 02:32:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:59,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:59,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:33:00,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:33:00,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1570542176] [2021-10-11 02:33:00,059 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-11 02:33:00,059 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:33:00,060 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:33:00,060 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:33:00,061 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:33:00,223 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:00,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:00,272 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:00,683 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:00,789 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:01,272 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:01,434 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:01,449 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:02,165 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:02,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:02,197 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:33:02,327 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2021-10-11 02:33:02,542 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-10-11 02:33:02,753 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-10-11 02:33:03,052 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-10-11 02:33:03,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:33:03,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 8 [2021-10-11 02:33:03,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027645442] [2021-10-11 02:33:03,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:03,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:03,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:03,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:03,056 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand 6 states. [2021-10-11 02:33:03,248 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-10-11 02:33:03,509 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-10-11 02:33:03,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:03,542 INFO L93 Difference]: Finished difference Result 21 states and 30 transitions. [2021-10-11 02:33:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:33:03,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-10-11 02:33:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:03,544 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:33:03,544 INFO L226 Difference]: Without dead ends: 14 [2021-10-11 02:33:03,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:33:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-11 02:33:03,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-10-11 02:33:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:33:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-11 02:33:03,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 11 [2021-10-11 02:33:03,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:03,551 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-11 02:33:03,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:03,551 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-10-11 02:33:03,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:33:03,552 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:03,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:03,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-11 02:33:03,766 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:03,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:03,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2106720172, now seen corresponding path program 1 times [2021-10-11 02:33:03,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:03,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424019686] [2021-10-11 02:33:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:33:03,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424019686] [2021-10-11 02:33:03,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347713149] [2021-10-11 02:33:03,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:33:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:33:03,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:33:03,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:33:03,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1392733518] [2021-10-11 02:33:03,992 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-11 02:33:03,992 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:33:03,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:33:03,997 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:33:03,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:33:04,148 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:04,775 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:04,791 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:05,451 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:05,879 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:05,918 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:06,563 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:06,575 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:33:07,059 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:33:07,357 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-10-11 02:33:08,323 WARN L197 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-10-11 02:33:08,439 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:08,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:33:08,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2021-10-11 02:33:08,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496772307] [2021-10-11 02:33:08,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:08,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:08,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:08,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:33:08,441 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand 5 states. [2021-10-11 02:33:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:08,495 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2021-10-11 02:33:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:08,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:33:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:08,502 INFO L225 Difference]: With dead ends: 24 [2021-10-11 02:33:08,502 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:33:08,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:33:08,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:33:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 02:33:08,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 02:33:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-11 02:33:08,508 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 12 [2021-10-11 02:33:08,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:08,509 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-11 02:33:08,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-10-11 02:33:08,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:33:08,509 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:08,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:08,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-10-11 02:33:08,719 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:08,720 INFO L82 PathProgramCache]: Analyzing trace with hash -122988255, now seen corresponding path program 2 times [2021-10-11 02:33:08,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:08,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719748391] [2021-10-11 02:33:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:08,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:33:08,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719748391] [2021-10-11 02:33:08,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:08,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:33:08,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618297579] [2021-10-11 02:33:08,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:08,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:08,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:08,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:08,828 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand 4 states. [2021-10-11 02:33:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:08,852 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-10-11 02:33:08,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:08,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:33:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:08,853 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:33:08,854 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:33:08,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:33:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:33:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:33:08,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:33:08,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-11 02:33:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:08,856 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:33:08,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:33:08,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:33:08,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-10-11 02:33:08,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:33:09,495 WARN L197 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2021-10-11 02:33:09,777 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2021-10-11 02:33:10,153 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 49 [2021-10-11 02:33:10,317 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2021-10-11 02:33:10,320 INFO L262 CegarLoopResult]: For program point L589(lines 589 591) no Hoare annotation was computed. [2021-10-11 02:33:10,321 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:33:10,321 INFO L265 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: true [2021-10-11 02:33:10,321 INFO L258 CegarLoopResult]: At program point L633-3(lines 633 638) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) (<= ULTIMATE.start_main_~data~0 1) (= |#NULL.base| 0) (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) (<= 1 ULTIMATE.start_main_~data~0) (<= |ULTIMATE.start_dll_create_#in~data| 1) (<= 1 ULTIMATE.start_dll_create_~data) (<= 2 |ULTIMATE.start_dll_create_#in~len|) (= 2 ULTIMATE.start_main_~len~0) (<= 0 |#t~string1.base|) (<= ULTIMATE.start_dll_create_~head~0.offset 0) (<= ULTIMATE.start_main_~len~0 (+ ULTIMATE.start_main_~i~0 1)) (<= ULTIMATE.start_dll_create_~len 2) (<= 1 |ULTIMATE.start_dll_create_#in~data|) (<= 0 ULTIMATE.start_dll_create_~head~0.offset) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~len| 2) (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0) (<= ULTIMATE.start_dll_create_~data 1) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 ULTIMATE.start_dll_create_~len)) [2021-10-11 02:33:10,321 INFO L265 CegarLoopResult]: At program point L642(lines 624 643) the Hoare annotation is: true [2021-10-11 02:33:10,322 INFO L258 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (and (<= 2 ULTIMATE.start_main_~len~0) (<= 0 |#NULL.offset|) (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) (<= ULTIMATE.start_main_~len~0 2) (<= |#t~string1.offset| 0) (<= ULTIMATE.start_dll_create_~head~0.offset 0) (<= 0 ULTIMATE.start_dll_create_~head~0.offset) (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) (<= |#NULL.base| 0) (<= ULTIMATE.start_main_~data~0 1) (<= 1 ULTIMATE.start_main_~data~0) (<= |ULTIMATE.start_dll_create_#in~data| 1) (<= 1 ULTIMATE.start_dll_create_~data) (<= 2 |ULTIMATE.start_dll_create_#in~len|) (<= 0 |#t~string1.base|) (<= |#t~string0.offset| 0) (<= 0 |#t~string0.offset|) (<= ULTIMATE.start_dll_create_~len 2) (<= 1 |ULTIMATE.start_dll_create_#in~data|) (<= 0 |#t~string1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_dll_create_#in~len| 2) (<= ULTIMATE.start_dll_create_~data 1) (<= 0 ULTIMATE.start_dll_create_~len) (<= |#NULL.offset| 0)) [2021-10-11 02:33:10,322 INFO L262 CegarLoopResult]: For program point L635(lines 635 637) no Hoare annotation was computed. [2021-10-11 02:33:10,322 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2021-10-11 02:33:10,322 INFO L258 CegarLoopResult]: At program point L611-2(lines 611 614) the Hoare annotation is: false [2021-10-11 02:33:10,322 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:33:10,322 INFO L258 CegarLoopResult]: At program point L636(lines 624 643) the Hoare annotation is: false [2021-10-11 02:33:10,323 INFO L258 CegarLoopResult]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse0 (= |#t~string1.offset| 0)) (.cse1 (<= 0 |#t~string0.base|)) (.cse2 (<= ULTIMATE.start_main_~data~0 1)) (.cse3 (= |#NULL.base| 0)) (.cse4 (<= 1 ULTIMATE.start_main_~data~0)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~data| 1)) (.cse6 (<= 1 ULTIMATE.start_dll_create_~data)) (.cse7 (<= 2 |ULTIMATE.start_dll_create_#in~len|)) (.cse8 (<= 0 |#t~string1.base|)) (.cse9 (<= ULTIMATE.start_dll_create_~head~0.offset 0)) (.cse11 (<= 1 |ULTIMATE.start_dll_create_#in~data|)) (.cse12 (<= 0 ULTIMATE.start_dll_create_~head~0.offset)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (<= |ULTIMATE.start_dll_create_#in~len| 2)) (.cse10 (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0)) (.cse15 (<= ULTIMATE.start_dll_create_~data 1)) (.cse16 (= |#t~string0.offset| 0)) (.cse17 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 (= ULTIMATE.start_dll_create_~len ULTIMATE.start_main_~len~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= ULTIMATE.start_dll_create_~len 2) (or (= ULTIMATE.start_dll_create_~head~0.base 0) .cse10) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse0 .cse1 (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) .cse2 .cse3 (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) .cse4 .cse5 .cse6 .cse7 (= 2 ULTIMATE.start_main_~len~0) .cse8 .cse9 (<= ULTIMATE.start_dll_create_~len 2) .cse11 .cse12 .cse13 .cse14 .cse10 .cse15 .cse16 .cse17 (<= 0 ULTIMATE.start_dll_create_~len)))) [2021-10-11 02:33:10,323 INFO L265 CegarLoopResult]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2021-10-11 02:33:10,323 INFO L258 CegarLoopResult]: At program point L629-2(lines 629 632) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_dll_create_~new_head~0.offset) (<= ULTIMATE.start_main_~data~0 1) (= |#NULL.base| 0) (<= ULTIMATE.start_dll_create_~new_head~0.offset 0) (<= 1 ULTIMATE.start_main_~data~0) (<= |ULTIMATE.start_dll_create_#in~data| 1) (<= 1 ULTIMATE.start_dll_create_~data) (<= 2 |ULTIMATE.start_dll_create_#in~len|) (= 2 ULTIMATE.start_main_~len~0) (<= 0 |#t~string1.base|) (<= ULTIMATE.start_dll_create_~head~0.offset 0) (<= ULTIMATE.start_dll_create_~len 2) (<= 1 |ULTIMATE.start_dll_create_#in~data|) (<= 0 ULTIMATE.start_dll_create_~head~0.offset) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~len| 2) (= |ULTIMATE.start_dll_create_#t~malloc6.offset| 0) (<= ULTIMATE.start_dll_create_~data 1) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 ULTIMATE.start_dll_create_~len)) [2021-10-11 02:33:10,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:10 BoogieIcfgContainer [2021-10-11 02:33:10,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:10,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:10,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:10,364 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:10,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:53" (3/4) ... [2021-10-11 02:33:10,368 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:33:10,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-10-11 02:33:10,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:33:10,385 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:33:10,385 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:33:10,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && len == len) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len == 2) && (head == 0 || malloc(sizeof(struct node)) == 0)) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len) [2021-10-11 02:33:10,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len [2021-10-11 02:33:10,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= i + 1) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len [2021-10-11 02:33:10,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((2 <= len && 0 <= #NULL) && new_head <= 0) && len <= 2) && "dll2n_update_all_reverse.c" <= 0) && head <= 0) && 0 <= head) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= "0") && 0 <= new_head) && #NULL <= 0) && data <= 1) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 0 <= "dll2n_update_all_reverse.c") && "0" <= 0) && 0 <= "0") && len <= 2) && 1 <= \old(data)) && 0 <= "dll2n_update_all_reverse.c") && 0 <= #NULL) && \old(len) <= 2) && data <= 1) && 0 <= len) && #NULL <= 0 [2021-10-11 02:33:10,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d19cc2-4826-4feb-b877-713c7d9d917e/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:33:10,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:10,441 INFO L168 Benchmark]: Toolchain (without parser) took 18895.96 ms. Allocated memory was 123.7 MB in the beginning and 304.1 MB in the end (delta: 180.4 MB). Free memory was 91.1 MB in the beginning and 145.3 MB in the end (delta: -54.2 MB). Peak memory consumption was 125.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,442 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 41.5 MB in the beginning and 41.5 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:10,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.30 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 85.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 123.7 MB. Free memory was 85.5 MB in the beginning and 83.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,443 INFO L168 Benchmark]: Boogie Preprocessor took 46.19 ms. Allocated memory is still 123.7 MB. Free memory was 83.4 MB in the beginning and 82.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,443 INFO L168 Benchmark]: RCFGBuilder took 862.22 ms. Allocated memory is still 123.7 MB. Free memory was 82.2 MB in the beginning and 84.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,444 INFO L168 Benchmark]: TraceAbstraction took 17293.92 ms. Allocated memory was 123.7 MB in the beginning and 304.1 MB in the end (delta: 180.4 MB). Free memory was 83.4 MB in the beginning and 148.4 MB in the end (delta: -65.0 MB). Peak memory consumption was 165.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,444 INFO L168 Benchmark]: Witness Printer took 76.51 ms. Allocated memory is still 304.1 MB. Free memory was 148.4 MB in the beginning and 145.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:10,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 41.5 MB in the beginning and 41.5 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 557.30 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 85.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 123.7 MB. Free memory was 85.5 MB in the beginning and 83.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.19 ms. Allocated memory is still 123.7 MB. Free memory was 83.4 MB in the beginning and 82.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 862.22 ms. Allocated memory is still 123.7 MB. Free memory was 82.2 MB in the beginning and 84.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17293.92 ms. Allocated memory was 123.7 MB in the beginning and 304.1 MB in the end (delta: 180.4 MB). Free memory was 83.4 MB in the beginning and 148.4 MB in the end (delta: -65.0 MB). Peak memory consumption was 165.9 MB. Max. memory is 16.1 GB. * Witness Printer took 76.51 ms. Allocated memory is still 304.1 MB. Free memory was 148.4 MB in the beginning and 145.3 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: 641]: 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: 587]: Loop Invariant Derived loop invariant: ((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && len == len) && data <= 1) && #NULL == 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len == 2) && (head == 0 || malloc(sizeof(struct node)) == 0)) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: ((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((2 <= len && 0 <= #NULL) && new_head <= 0) && len <= 2) && "dll2n_update_all_reverse.c" <= 0) && head <= 0) && 0 <= head) && malloc(sizeof(struct node)) == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= "0") && 0 <= new_head) && #NULL <= 0) && data <= 1) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 0 <= "dll2n_update_all_reverse.c") && "0" <= 0) && 0 <= "0") && len <= 2) && 1 <= \old(data)) && 0 <= "dll2n_update_all_reverse.c") && 0 <= #NULL) && \old(len) <= 2) && data <= 1) && 0 <= len) && #NULL <= 0 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (((((((((((((((((((((("dll2n_update_all_reverse.c" == 0 && 0 <= "0") && 0 <= new_head) && data <= 1) && #NULL == 0) && new_head <= 0) && 1 <= data) && \old(data) <= 1) && 1 <= data) && 2 <= \old(len)) && 2 == len) && 0 <= "dll2n_update_all_reverse.c") && head <= 0) && len <= i + 1) && len <= 2) && 1 <= \old(data)) && 0 <= head) && #NULL == 0) && \old(len) <= 2) && malloc(sizeof(struct node)) == 0) && data <= 1) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= len - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 50 SDslu, 49 SDs, 0 SdLazy, 70 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=4, 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 20 NumberOfFragments, 371 HoareAnnotationTreeSize, 9 FomulaSimplifications, 839 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 834 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1956 SizeOfPredicates, 6 NumberOfNonLiveVariables, 369 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 15/24 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]: 6143, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME[ms]: 5640, 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: 21, TOOLS_QUANTIFIERELIM_TIME[ms]: 5626, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 1381, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 46, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 228, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 157, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME[ms]: 15, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME[ms]: 29, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 3370, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3370, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, 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]: 4, DAG_COMPRESSION_TIME[ms]: 21, DAG_COMPRESSION_PROCESSED_NODES: 292, DAG_COMPRESSION_RETAINED_NODES: 59, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...