./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/heavy-2.c --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_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/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_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/heavy-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/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_eab18141-64fd-459c-977e-00883b421d31/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 12cc72c171310a5d1c1c1ed79b09d06400e5b2d9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:26:47,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:47,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:47,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:47,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:47,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:47,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:47,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:47,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:47,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:47,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:47,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:47,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:47,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:47,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:47,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:47,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:47,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:47,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:47,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:47,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:47,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:47,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:47,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:47,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:47,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:47,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:47,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:47,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:47,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:47,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:47,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:47,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:47,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:47,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:47,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:47,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:47,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:47,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:47,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:47,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:47,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:47,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:47,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:47,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:47,460 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:47,460 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:47,460 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:47,460 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:47,461 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:47,461 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:47,461 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:47,461 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:47,462 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:47,462 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:47,462 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:47,462 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:47,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:47,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:47,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:47,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:47,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:47,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:47,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:47,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:47,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:47,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:47,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:47,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:47,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:47,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:47,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:47,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:47,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:47,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:47,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:47,468 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:47,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:47,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:47,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:47,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:47,469 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_eab18141-64fd-459c-977e-00883b421d31/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12cc72c171310a5d1c1c1ed79b09d06400e5b2d9 [2021-10-11 02:26:47,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:47,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:47,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:47,773 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:47,774 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:47,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loops/heavy-2.c [2021-10-11 02:26:47,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/data/b0f441294/f5ff9b684b4d44e4bb6b328988e1a18b/FLAG024a66ca8 [2021-10-11 02:26:48,291 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:48,292 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/sv-benchmarks/c/loops/heavy-2.c [2021-10-11 02:26:48,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/data/b0f441294/f5ff9b684b4d44e4bb6b328988e1a18b/FLAG024a66ca8 [2021-10-11 02:26:48,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/data/b0f441294/f5ff9b684b4d44e4bb6b328988e1a18b [2021-10-11 02:26:48,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:48,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:48,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:48,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:48,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:48,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:48" (1/1) ... [2021-10-11 02:26:48,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486487ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:48, skipping insertion in model container [2021-10-11 02:26:48,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:48" (1/1) ... [2021-10-11 02:26:48,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:48,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:48,952 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_eab18141-64fd-459c-977e-00883b421d31/sv-benchmarks/c/loops/heavy-2.c[600,613] [2021-10-11 02:26:48,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:49,063 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:49,095 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_eab18141-64fd-459c-977e-00883b421d31/sv-benchmarks/c/loops/heavy-2.c[600,613] [2021-10-11 02:26:49,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:49,169 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:49,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49 WrapperNode [2021-10-11 02:26:49,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:49,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:49,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:49,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:49,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:49,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:49,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:49,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:49,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... [2021-10-11 02:26:49,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:49,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:49,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:49,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:49,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/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 02:26:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:26:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:26:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-10-11 02:26:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:49,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:49,755 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:26:49,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:49 BoogieIcfgContainer [2021-10-11 02:26:49,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:49,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:49,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:49,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:49,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:48" (1/3) ... [2021-10-11 02:26:49,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1589b559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:49, skipping insertion in model container [2021-10-11 02:26:49,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:49" (2/3) ... [2021-10-11 02:26:49,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1589b559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:49, skipping insertion in model container [2021-10-11 02:26:49,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:49" (3/3) ... [2021-10-11 02:26:49,773 INFO L111 eAbstractionObserver]: Analyzing ICFG heavy-2.c [2021-10-11 02:26:49,786 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:49,790 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:49,799 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:49,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:49,823 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:49,823 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:49,823 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:49,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:49,824 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:49,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:49,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:26:49,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:26:49,841 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:49,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:26:49,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:49,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:49,848 INFO L82 PathProgramCache]: Analyzing trace with hash 2499948, now seen corresponding path program 1 times [2021-10-11 02:26:49,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:49,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977365467] [2021-10-11 02:26:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,058 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 02:26:50,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977365467] [2021-10-11 02:26:50,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:50,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:50,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440140880] [2021-10-11 02:26:50,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:50,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:50,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:50,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:50,081 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-10-11 02:26:50,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:50,117 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-10-11 02:26:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:50,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:26:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:50,127 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:26:50,127 INFO L226 Difference]: Without dead ends: 10 [2021-10-11 02:26:50,130 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 [2021-10-11 02:26:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-11 02:26:50,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2021-10-11 02:26:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:26:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-10-11 02:26:50,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 4 [2021-10-11 02:26:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:50,158 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-11 02:26:50,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:50,159 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2021-10-11 02:26:50,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:26:50,159 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:50,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:26:50,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:26:50,160 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:50,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:50,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1936446113, now seen corresponding path program 1 times [2021-10-11 02:26:50,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:50,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897040046] [2021-10-11 02:26:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,255 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 02:26:50,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897040046] [2021-10-11 02:26:50,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601346141] [2021-10-11 02:26:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/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 02:26:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:50,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:50,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:50,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:50,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2021-10-11 02:26:50,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731913626] [2021-10-11 02:26:50,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:50,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:50,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:50,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:50,438 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand 4 states. [2021-10-11 02:26:50,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:50,482 INFO L93 Difference]: Finished difference Result 17 states and 24 transitions. [2021-10-11 02:26:50,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:50,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:26:50,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:50,483 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:26:50,484 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:26:50,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:26:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:26:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:26:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-11 02:26:50,493 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 6 [2021-10-11 02:26:50,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:50,494 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-11 02:26:50,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-10-11 02:26:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:26:50,496 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:50,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:50,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:26:50,702 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:50,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:50,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1094664557, now seen corresponding path program 1 times [2021-10-11 02:26:50,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:50,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958136551] [2021-10-11 02:26:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 02:26:50,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958136551] [2021-10-11 02:26:50,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151438538] [2021-10-11 02:26:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/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 02:26:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:26:50,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:50,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:51,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1521812572] [2021-10-11 02:26:51,120 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-11 02:26:51,120 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:26:51,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:26:51,131 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:26:51,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:26:51,664 FATAL L? ?]: Ignoring exception! java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1134) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:26:51,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:26:51,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2021-10-11 02:26:51,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326018632] [2021-10-11 02:26:51,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 02:26:51,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:51,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 02:26:51,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:26:51,669 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 11 states. [2021-10-11 02:26:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:51,894 INFO L93 Difference]: Finished difference Result 33 states and 48 transitions. [2021-10-11 02:26:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:26:51,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2021-10-11 02:26:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:51,896 INFO L225 Difference]: With dead ends: 33 [2021-10-11 02:26:51,896 INFO L226 Difference]: Without dead ends: 30 [2021-10-11 02:26:51,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:26:51,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-11 02:26:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2021-10-11 02:26:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 02:26:51,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2021-10-11 02:26:51,904 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 10 [2021-10-11 02:26:51,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:51,905 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2021-10-11 02:26:51,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 02:26:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2021-10-11 02:26:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 02:26:51,909 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:51,909 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 1, 1, 1, 1] [2021-10-11 02:26:52,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:52,122 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:52,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:52,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1828701968, now seen corresponding path program 2 times [2021-10-11 02:26:52,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:52,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103607483] [2021-10-11 02:26:52,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-11 02:26:52,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103607483] [2021-10-11 02:26:52,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625139257] [2021-10-11 02:26:52,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/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 02:26:52,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-11 02:26:52,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:26:52,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:52,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-11 02:26:52,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:52,475 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-11 02:26:52,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:52,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [6] total 8 [2021-10-11 02:26:52,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986985555] [2021-10-11 02:26:52,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:52,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:52,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:52,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:52,479 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 4 states. [2021-10-11 02:26:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:52,485 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2021-10-11 02:26:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:52,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2021-10-11 02:26:52,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:52,486 INFO L225 Difference]: With dead ends: 29 [2021-10-11 02:26:52,486 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:52,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:52,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:52,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:52,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-10-11 02:26:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:52,490 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:52,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:52,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:52,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-11 02:26:52,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:52,841 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:52,842 INFO L258 CegarLoopResult]: At program point L13-3(lines 13 15) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 1) (< (mod ULTIMATE.start_main_~i~0 4294967296) 1048576)) [2021-10-11 02:26:52,842 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:52,842 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-10-11 02:26:52,843 INFO L265 CegarLoopResult]: At program point L22(lines 7 23) the Hoare annotation is: true [2021-10-11 02:26:52,844 INFO L258 CegarLoopResult]: At program point L18(lines 8 23) the Hoare annotation is: false [2021-10-11 02:26:52,844 INFO L258 CegarLoopResult]: At program point L14-3(lines 14 15) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 1) (< (mod ULTIMATE.start_main_~j~0 4294967296) 1048576) (< (mod ULTIMATE.start_main_~i~0 4294967296) 1048576)) [2021-10-11 02:26:52,844 INFO L258 CegarLoopResult]: At program point L12-3(lines 12 15) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 1) (or (< (mod (+ ULTIMATE.start_main_~i~0 1) 4294967296) 1048576) (<= 1048576 (mod ULTIMATE.start_main_~j~0 4294967296)))) [2021-10-11 02:26:52,844 INFO L262 CegarLoopResult]: For program point L12-4(lines 8 23) no Hoare annotation was computed. [2021-10-11 02:26:52,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:52 BoogieIcfgContainer [2021-10-11 02:26:52,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:52,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:52,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:52,866 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:52,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:49" (3/4) ... [2021-10-11 02:26:52,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:52,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:26:52,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 02:26:52,885 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:26:52,885 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:52,935 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab18141-64fd-459c-977e-00883b421d31/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:52,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:52,943 INFO L168 Benchmark]: Toolchain (without parser) took 4277.96 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 52.4 MB in the beginning and 69.6 MB in the end (delta: -17.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:52,943 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 68.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:52,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.56 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.2 MB in the beginning and 85.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:52,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.69 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 84.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:52,946 INFO L168 Benchmark]: Boogie Preprocessor took 22.43 ms. Allocated memory is still 111.1 MB. Free memory was 83.8 MB in the beginning and 83.0 MB in the end (delta: 762.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:52,946 INFO L168 Benchmark]: RCFGBuilder took 518.25 ms. Allocated memory is still 111.1 MB. Free memory was 82.6 MB in the beginning and 64.5 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:52,947 INFO L168 Benchmark]: TraceAbstraction took 3104.72 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 64.1 MB in the beginning and 71.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:52,947 INFO L168 Benchmark]: Witness Printer took 75.66 ms. Allocated memory is still 134.2 MB. Free memory was 71.7 MB in the beginning and 69.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:52,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 68.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 506.56 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.2 MB in the beginning and 85.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.69 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 84.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.43 ms. Allocated memory is still 111.1 MB. Free memory was 83.8 MB in the beginning and 83.0 MB in the end (delta: 762.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 518.25 ms. Allocated memory is still 111.1 MB. Free memory was 82.6 MB in the beginning and 64.5 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3104.72 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 64.1 MB in the beginning and 71.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Witness Printer took 75.66 ms. Allocated memory is still 134.2 MB. Free memory was 71.7 MB in the beginning and 69.6 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: 21]: 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: 13]: Loop Invariant Derived loop invariant: a == 1 && i % 4294967296 < 1048576 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (a == 1 && j % 4294967296 < 1048576) && i % 4294967296 < 1048576 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: a == 1 && ((i + 1) % 4294967296 < 1048576 || 1048576 <= j % 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 8, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 64 SDslu, 22 SDs, 0 SdLazy, 81 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 31 NumberOfFragments, 42 HoareAnnotationTreeSize, 5 FomulaSimplifications, 221 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 92 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 11332 SizeOfPredicates, 4 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 233/330 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...