./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.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-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe54aa6cbf5093caec91497905a5a8a5f126c540 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 05:25:21,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:25:21,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:25:21,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:25:21,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:25:21,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:25:21,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:25:21,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:25:21,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:25:21,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:25:21,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:25:21,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:25:21,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:25:21,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:25:21,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:25:21,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:25:21,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:25:21,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:25:21,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:25:21,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:25:21,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:25:21,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:25:21,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:25:21,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:25:21,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:25:21,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:25:21,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:25:21,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:25:21,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:25:21,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:25:21,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:25:21,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:25:21,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:25:21,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:25:21,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:25:21,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:25:21,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:25:21,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:25:21,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:25:21,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:25:21,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:25:21,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:25:21,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:25:21,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:25:21,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:25:21,426 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:25:21,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:25:21,427 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:25:21,427 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:25:21,427 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:25:21,427 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:25:21,428 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:25:21,428 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:25:21,428 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:25:21,428 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:25:21,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:25:21,429 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:25:21,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:25:21,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:25:21,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:25:21,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:25:21,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:25:21,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:25:21,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:25:21,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:25:21,431 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:25:21,431 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:25:21,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:25:21,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:25:21,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:25:21,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:25:21,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:25:21,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:25:21,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:25:21,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:25:21,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:25:21,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:25:21,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:25:21,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:25:21,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:25:21,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:25:21,434 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe54aa6cbf5093caec91497905a5a8a5f126c540 [2020-12-09 05:25:21,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:25:21,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:25:21,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:25:21,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:25:21,627 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:25:21,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2020-12-09 05:25:21,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/data/0d8abc4f5/f63f6ffeed5d48e8bd419304f98bb1e9/FLAG2848d83a9 [2020-12-09 05:25:22,034 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:25:22,034 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2020-12-09 05:25:22,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/data/0d8abc4f5/f63f6ffeed5d48e8bd419304f98bb1e9/FLAG2848d83a9 [2020-12-09 05:25:22,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/data/0d8abc4f5/f63f6ffeed5d48e8bd419304f98bb1e9 [2020-12-09 05:25:22,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:25:22,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:25:22,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:25:22,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:25:22,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:25:22,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b1db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22, skipping insertion in model container [2020-12-09 05:25:22,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:25:22,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:25:22,186 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[7766,7779] [2020-12-09 05:25:22,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:25:22,195 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:25:22,208 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[7766,7779] [2020-12-09 05:25:22,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:25:22,218 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:25:22,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22 WrapperNode [2020-12-09 05:25:22,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:25:22,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:25:22,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:25:22,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:25:22,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:25:22,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:25:22,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:25:22,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:25:22,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... [2020-12-09 05:25:22,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:25:22,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:25:22,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:25:22,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:25:22,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:25:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:25:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:25:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:25:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:25:22,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:25:22,528 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 05:25:22,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:25:22 BoogieIcfgContainer [2020-12-09 05:25:22,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:25:22,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:25:22,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:25:22,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:25:22,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:25:22" (1/3) ... [2020-12-09 05:25:22,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4c3ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:25:22, skipping insertion in model container [2020-12-09 05:25:22,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:25:22" (2/3) ... [2020-12-09 05:25:22,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4c3ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:25:22, skipping insertion in model container [2020-12-09 05:25:22,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:25:22" (3/3) ... [2020-12-09 05:25:22,536 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2020-12-09 05:25:22,545 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:25:22,548 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:25:22,555 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:25:22,571 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:25:22,572 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:25:22,572 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:25:22,572 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:25:22,572 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:25:22,572 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:25:22,572 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:25:22,572 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:25:22,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 05:25:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 05:25:22,585 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:25:22,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 05:25:22,586 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:25:22,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:25:22,590 INFO L82 PathProgramCache]: Analyzing trace with hash 4062681, now seen corresponding path program 1 times [2020-12-09 05:25:22,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:25:22,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900179643] [2020-12-09 05:25:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:25:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:25:22,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900179643] [2020-12-09 05:25:22,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:25:22,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:25:22,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290062298] [2020-12-09 05:25:22,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:25:22,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:25:22,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:25:22,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:25:22,737 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-12-09 05:25:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:25:22,777 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2020-12-09 05:25:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:25:22,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 05:25:22,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:25:22,785 INFO L225 Difference]: With dead ends: 44 [2020-12-09 05:25:22,785 INFO L226 Difference]: Without dead ends: 23 [2020-12-09 05:25:22,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:25:22,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-09 05:25:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-09 05:25:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-09 05:25:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-12-09 05:25:22,811 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 4 [2020-12-09 05:25:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:25:22,811 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-12-09 05:25:22,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:25:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-12-09 05:25:22,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 05:25:22,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:25:22,812 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-09 05:25:22,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 05:25:22,812 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:25:22,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:25:22,813 INFO L82 PathProgramCache]: Analyzing trace with hash 774520604, now seen corresponding path program 1 times [2020-12-09 05:25:22,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:25:22,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629301844] [2020-12-09 05:25:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:25:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:25:22,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629301844] [2020-12-09 05:25:22,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116268095] [2020-12-09 05:25:22,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:22,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 05:25:22,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:25:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:25:22,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:25:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 05:25:22,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 05:25:22,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3] total 4 [2020-12-09 05:25:22,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038824080] [2020-12-09 05:25:22,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:25:22,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:25:22,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:25:22,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 05:25:22,938 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 3 states. [2020-12-09 05:25:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:25:22,957 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-12-09 05:25:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:25:22,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-09 05:25:22,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:25:22,958 INFO L225 Difference]: With dead ends: 39 [2020-12-09 05:25:22,958 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 05:25:22,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 05:25:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 05:25:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-12-09 05:25:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 05:25:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-12-09 05:25:22,967 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 7 [2020-12-09 05:25:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:25:22,967 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-12-09 05:25:22,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:25:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-12-09 05:25:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 05:25:22,968 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:25:22,968 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:25:23,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 05:25:23,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:25:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:25:23,173 INFO L82 PathProgramCache]: Analyzing trace with hash -2089991685, now seen corresponding path program 1 times [2020-12-09 05:25:23,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:25:23,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641044561] [2020-12-09 05:25:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:25:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:25:23,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641044561] [2020-12-09 05:25:23,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453351141] [2020-12-09 05:25:23,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:23,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 05:25:23,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:25:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:25:23,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:25:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:25:23,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 05:25:23,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 6 [2020-12-09 05:25:23,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510358230] [2020-12-09 05:25:23,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:25:23,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:25:23,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:25:23,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-09 05:25:23,399 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2020-12-09 05:25:23,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:25:23,422 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2020-12-09 05:25:23,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:25:23,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-09 05:25:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:25:23,423 INFO L225 Difference]: With dead ends: 49 [2020-12-09 05:25:23,423 INFO L226 Difference]: Without dead ends: 47 [2020-12-09 05:25:23,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-09 05:25:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-09 05:25:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-12-09 05:25:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 05:25:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-12-09 05:25:23,430 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 13 [2020-12-09 05:25:23,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:25:23,430 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-12-09 05:25:23,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:25:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-12-09 05:25:23,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 05:25:23,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:25:23,431 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:25:23,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:23,633 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:25:23,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:25:23,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1560931952, now seen corresponding path program 1 times [2020-12-09 05:25:23,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:25:23,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53467097] [2020-12-09 05:25:23,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:25:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:25:23,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53467097] [2020-12-09 05:25:23,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:25:23,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 05:25:23,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437157403] [2020-12-09 05:25:23,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:25:23,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:25:23,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:25:23,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:25:23,749 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-12-09 05:25:23,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:25:23,882 INFO L93 Difference]: Finished difference Result 101 states and 145 transitions. [2020-12-09 05:25:23,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:25:23,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-09 05:25:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:25:23,886 INFO L225 Difference]: With dead ends: 101 [2020-12-09 05:25:23,886 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 05:25:23,888 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 [2020-12-09 05:25:23,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 05:25:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2020-12-09 05:25:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 05:25:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-12-09 05:25:23,902 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 15 [2020-12-09 05:25:23,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:25:23,902 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-12-09 05:25:23,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:25:23,903 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-12-09 05:25:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 05:25:23,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:25:23,904 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:25:23,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 05:25:23,904 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:25:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:25:23,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1927732657, now seen corresponding path program 1 times [2020-12-09 05:25:23,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:25:23,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492638515] [2020-12-09 05:25:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:25:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:25:23,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492638515] [2020-12-09 05:25:23,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608655805] [2020-12-09 05:25:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:23,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 05:25:23,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:25:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:25:23,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:25:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:25:23,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 05:25:23,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 7 [2020-12-09 05:25:23,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923206446] [2020-12-09 05:25:23,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:25:23,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:25:23,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:25:23,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-09 05:25:23,995 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 4 states. [2020-12-09 05:25:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:25:24,022 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2020-12-09 05:25:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:25:24,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-09 05:25:24,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:25:24,023 INFO L225 Difference]: With dead ends: 69 [2020-12-09 05:25:24,023 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 05:25:24,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-09 05:25:24,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 05:25:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-09 05:25:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 05:25:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2020-12-09 05:25:24,029 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 21 [2020-12-09 05:25:24,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:25:24,029 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2020-12-09 05:25:24,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:25:24,029 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2020-12-09 05:25:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 05:25:24,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:25:24,030 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:25:24,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:24,231 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:25:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:25:24,232 INFO L82 PathProgramCache]: Analyzing trace with hash -77313777, now seen corresponding path program 1 times [2020-12-09 05:25:24,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:25:24,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992780853] [2020-12-09 05:25:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:25:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:24,342 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 05:25:24,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992780853] [2020-12-09 05:25:24,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315254691] [2020-12-09 05:25:24,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:25:24,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 05:25:24,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:25:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:25:24,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:25:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:25:24,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 05:25:24,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2020-12-09 05:25:24,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002914345] [2020-12-09 05:25:24,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:25:24,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:25:24,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:25:24,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 05:25:24,437 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 3 states. [2020-12-09 05:25:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:25:24,445 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-12-09 05:25:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:25:24,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-12-09 05:25:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:25:24,446 INFO L225 Difference]: With dead ends: 69 [2020-12-09 05:25:24,446 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 05:25:24,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 05:25:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 05:25:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 05:25:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 05:25:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 05:25:24,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-12-09 05:25:24,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:25:24,447 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 05:25:24,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:25:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 05:25:24,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 05:25:24,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:25:24,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 05:25:24,796 INFO L262 CegarLoopResult]: For program point L97(lines 97 99) no Hoare annotation was computed. [2020-12-09 05:25:24,796 INFO L258 CegarLoopResult]: At program point L31(lines 31 126) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (<= ULTIMATE.start_main_~blastFlag~0 2) (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~s__state~0 8640)) (and (< ULTIMATE.start_main_~blastFlag~0 5) .cse0))) [2020-12-09 05:25:24,797 INFO L258 CegarLoopResult]: At program point L98(lines 10 142) the Hoare annotation is: false [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point L94-1(lines 55 108) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point L90-1(lines 55 108) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L262 CegarLoopResult]: For program point L79-1(lines 55 108) no Hoare annotation was computed. [2020-12-09 05:25:24,797 INFO L265 CegarLoopResult]: At program point L141(lines 10 142) the Hoare annotation is: true [2020-12-09 05:25:24,797 INFO L258 CegarLoopResult]: At program point L26(lines 26 129) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (<= ULTIMATE.start_main_~blastFlag~0 2) (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~s__state~0 8640)) (and (< ULTIMATE.start_main_~blastFlag~0 5) .cse0))) [2020-12-09 05:25:24,798 INFO L258 CegarLoopResult]: At program point L51(lines 51 110) the Hoare annotation is: (or (< ULTIMATE.start_main_~blastFlag~0 5) (and (<= 8640 ULTIMATE.start_main_~s__state~0) (<= ULTIMATE.start_main_~s__state~0 8640))) [2020-12-09 05:25:24,798 INFO L258 CegarLoopResult]: At program point L47(lines 47 112) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (<= ULTIMATE.start_main_~blastFlag~0 2) (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~s__state~0 8640)) (and (< ULTIMATE.start_main_~blastFlag~0 5) .cse0))) [2020-12-09 05:25:24,798 INFO L265 CegarLoopResult]: At program point L138(lines 10 142) the Hoare annotation is: true [2020-12-09 05:25:24,798 INFO L258 CegarLoopResult]: At program point L101(lines 19 136) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (<= ULTIMATE.start_main_~blastFlag~0 2) (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~s__state~0 8640)) (and (< ULTIMATE.start_main_~blastFlag~0 5) .cse0))) [2020-12-09 05:25:24,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:25:24 BoogieIcfgContainer [2020-12-09 05:25:24,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:25:24,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:25:24,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:25:24,810 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:25:24,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:25:22" (3/4) ... [2020-12-09 05:25:24,812 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 05:25:24,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 05:25:24,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 05:25:24,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 05:25:24,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 05:25:24,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eb14ffd3-9a5d-43bc-99a8-54d6d2365984/bin/utaipan/witness.graphml [2020-12-09 05:25:24,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:25:24,849 INFO L168 Benchmark]: Toolchain (without parser) took 2796.70 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 36.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2020-12-09 05:25:24,849 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 92.3 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:25:24,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.49 ms. Allocated memory is still 92.3 MB. Free memory was 63.1 MB in the beginning and 69.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 05:25:24,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.82 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 67.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:25:24,850 INFO L168 Benchmark]: Boogie Preprocessor took 15.13 ms. Allocated memory is still 92.3 MB. Free memory was 67.4 MB in the beginning and 66.5 MB in the end (delta: 905.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:25:24,854 INFO L168 Benchmark]: RCFGBuilder took 264.49 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 46.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:25:24,855 INFO L168 Benchmark]: TraceAbstraction took 2277.96 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 45.9 MB in the beginning and 38.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:25:24,855 INFO L168 Benchmark]: Witness Printer took 38.40 ms. Allocated memory is still 115.3 MB. Free memory was 38.8 MB in the beginning and 36.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:25:24,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 92.3 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 166.49 ms. Allocated memory is still 92.3 MB. Free memory was 63.1 MB in the beginning and 69.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.82 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 67.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.13 ms. Allocated memory is still 92.3 MB. Free memory was 67.4 MB in the beginning and 66.5 MB in the end (delta: 905.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 264.49 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 46.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2277.96 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 45.9 MB in the beginning and 38.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * Witness Printer took 38.40 ms. Allocated memory is still 115.3 MB. Free memory was 38.8 MB in the beginning and 36.5 MB in the end (delta: 2.3 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: 140]: 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: 31]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || ((8640 <= s__state && !(s__hit == 0)) && s__state <= 8640)) || (blastFlag < 5 && 8640 <= s__state) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || ((8640 <= s__state && !(s__hit == 0)) && s__state <= 8640)) || (blastFlag < 5 && 8640 <= s__state) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || ((8640 <= s__state && !(s__hit == 0)) && s__state <= 8640)) || (blastFlag < 5 && 8640 <= s__state) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || ((8640 <= s__state && !(s__hit == 0)) && s__state <= 8640)) || (blastFlag < 5 && 8640 <= s__state) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: blastFlag < 5 || (8640 <= s__state && s__state <= 8640) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 34 SDslu, 53 SDs, 0 SdLazy, 82 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 48 NumberOfFragments, 102 HoareAnnotationTreeSize, 8 FomulaSimplifications, 396 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 7349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 253 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 123/139 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...