./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG --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 ad8e21886f5f45a7c58400298498a881b4f628bf6fff913be81ab14cf250dd19 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:04:11,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:04:11,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:04:11,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:04:11,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:04:11,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:04:11,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:04:11,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:04:11,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:04:11,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:04:11,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:04:11,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:04:11,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:04:11,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:04:11,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:04:11,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:04:11,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:04:11,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:04:11,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:04:11,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:04:11,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:04:11,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:04:11,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:04:11,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:04:11,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:04:11,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:04:11,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:04:11,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:04:11,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:04:11,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:04:11,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:04:11,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:04:11,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:04:11,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:04:11,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:04:11,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:04:11,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:04:11,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:04:11,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:04:11,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:04:11,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:04:11,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:04:11,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:04:11,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:04:11,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:04:11,525 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:04:11,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:04:11,525 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:04:11,526 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:04:11,526 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:04:11,533 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:04:11,533 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:04:11,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:04:11,535 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:04:11,535 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:04:11,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:04:11,535 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:04:11,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:04:11,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:04:11,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:04:11,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:04:11,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:04:11,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:04:11,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:04:11,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:04:11,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:04:11,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:04:11,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:04:11,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:04:11,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:04:11,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:04:11,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:04:11,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:11,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:04:11,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:04:11,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:04:11,543 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:04:11,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:04:11,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:04:11,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:04:11,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:04:11,545 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_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad8e21886f5f45a7c58400298498a881b4f628bf6fff913be81ab14cf250dd19 [2021-10-29 05:04:11,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:04:11,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:04:11,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:04:11,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:04:11,821 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:04:11,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2021-10-29 05:04:11,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/data/e0d4001f3/0c49092bcd18419fa05a549e14ecfb8f/FLAGc8bfa2209 [2021-10-29 05:04:12,323 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:04:12,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2021-10-29 05:04:12,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/data/e0d4001f3/0c49092bcd18419fa05a549e14ecfb8f/FLAGc8bfa2209 [2021-10-29 05:04:12,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/data/e0d4001f3/0c49092bcd18419fa05a549e14ecfb8f [2021-10-29 05:04:12,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:04:12,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:04:12,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:12,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:04:12,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:04:12,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:12,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad3f203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12, skipping insertion in model container [2021-10-29 05:04:12,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:12,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:04:12,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:04:12,868 WARN L228 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_04771804-4da3-4250-a240-b2c341615f22/sv-benchmarks/c/loop-invgen/apache-get-tag.i[893,906] [2021-10-29 05:04:12,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:12,912 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:04:12,925 WARN L228 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_04771804-4da3-4250-a240-b2c341615f22/sv-benchmarks/c/loop-invgen/apache-get-tag.i[893,906] [2021-10-29 05:04:12,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:12,946 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:04:12,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12 WrapperNode [2021-10-29 05:04:12,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:12,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:12,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:04:12,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:04:12,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:12,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:13,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:04:13,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:04:13,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:04:13,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:04:13,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:04:13,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:04:13,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:04:13,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (1/1) ... [2021-10-29 05:04:13,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:13,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:13,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:04:13,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:04:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:04:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:04:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:04:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:04:13,464 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:04:13,464 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-29 05:04:13,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:13 BoogieIcfgContainer [2021-10-29 05:04:13,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:04:13,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:04:13,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:04:13,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:04:13,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:04:12" (1/3) ... [2021-10-29 05:04:13,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddd2b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:13, skipping insertion in model container [2021-10-29 05:04:13,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:12" (2/3) ... [2021-10-29 05:04:13,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddd2b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:13, skipping insertion in model container [2021-10-29 05:04:13,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:13" (3/3) ... [2021-10-29 05:04:13,475 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2021-10-29 05:04:13,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:04:13,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-10-29 05:04:13,526 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:04:13,533 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:04:13,534 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-10-29 05:04:13,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 75 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:04:13,557 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:13,558 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:04:13,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 05:04:13,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash -255523899, now seen corresponding path program 1 times [2021-10-29 05:04:13,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:13,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049587033] [2021-10-29 05:04:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:13,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:13,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:13,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049587033] [2021-10-29 05:04:13,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049587033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:13,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:13,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:04:13,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425547252] [2021-10-29 05:04:13,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:04:13,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:13,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:04:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:13,803 INFO L87 Difference]: Start difference. First operand has 76 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 75 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:13,983 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2021-10-29 05:04:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:04:13,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:04:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:14,009 INFO L225 Difference]: With dead ends: 140 [2021-10-29 05:04:14,010 INFO L226 Difference]: Without dead ends: 62 [2021-10-29 05:04:14,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:04:14,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-29 05:04:14,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-10-29 05:04:14,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.22) internal successors, (61), 57 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2021-10-29 05:04:14,074 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 6 [2021-10-29 05:04:14,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:14,075 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2021-10-29 05:04:14,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:14,076 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2021-10-29 05:04:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:04:14,077 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:14,077 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:14,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:04:14,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 05:04:14,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:14,082 INFO L85 PathProgramCache]: Analyzing trace with hash -745175224, now seen corresponding path program 1 times [2021-10-29 05:04:14,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:14,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505466347] [2021-10-29 05:04:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:14,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:14,178 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:14,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505466347] [2021-10-29 05:04:14,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505466347] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:14,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:14,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:04:14,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215553031] [2021-10-29 05:04:14,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:04:14,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:04:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:14,185 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:14,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:14,322 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2021-10-29 05:04:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:04:14,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 05:04:14,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:14,324 INFO L225 Difference]: With dead ends: 74 [2021-10-29 05:04:14,324 INFO L226 Difference]: Without dead ends: 55 [2021-10-29 05:04:14,325 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:04:14,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-29 05:04:14,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-10-29 05:04:14,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.1875) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2021-10-29 05:04:14,333 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 8 [2021-10-29 05:04:14,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:14,334 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2021-10-29 05:04:14,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2021-10-29 05:04:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:04:14,335 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:14,335 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:14,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:04:14,336 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 05:04:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:14,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1867865087, now seen corresponding path program 1 times [2021-10-29 05:04:14,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:14,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517481124] [2021-10-29 05:04:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:14,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:14,586 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:14,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517481124] [2021-10-29 05:04:14,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517481124] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:04:14,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534754790] [2021-10-29 05:04:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:14,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:14,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:14,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:04:14,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:04:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:14,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:04:14,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:15,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 05:04:15,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534754790] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:04:15,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1415084846] [2021-10-29 05:04:15,171 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-10-29 05:04:15,172 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:04:15,175 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:04:15,180 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:04:15,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:04:15,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:04:15,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-29 05:04:15,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:04:15,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:04:15,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-29 05:04:15,242 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-10-29 05:04:15,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:04:15,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-29 05:04:15,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 05:04:15,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 05:04:15,263 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:04:15,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:04:15,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:04:15,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:04:15,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:04:15,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-29 05:04:15,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:04:15,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:04:15,342 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:04:15,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-10-29 05:04:15,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:04:15,363 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:94, output treesize:79 [2021-10-29 05:04:15,381 INFO L180 QuantifierPusher]: treesize reduction 5, result has 94.5 percent of original size [2021-10-29 05:04:15,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-10-29 05:04:15,406 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.0 percent of original size [2021-10-29 05:04:15,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-29 05:04:15,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,441 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size 103 [2021-10-29 05:04:15,448 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.4 percent of original size [2021-10-29 05:04:15,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 05:04:15,466 INFO L180 QuantifierPusher]: treesize reduction 10, result has 93.3 percent of original size [2021-10-29 05:04:15,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-10-29 05:04:15,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,494 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.4 percent of original size 114 [2021-10-29 05:04:15,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,607 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-10-29 05:04:15,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 05:04:15,613 INFO L180 QuantifierPusher]: treesize reduction 8, result has 89.5 percent of original size [2021-10-29 05:04:15,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-29 05:04:15,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,639 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.7 percent of original size 54 [2021-10-29 05:04:15,647 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-10-29 05:04:15,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-29 05:04:15,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:04:15,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:04:15,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:04:15,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-10-29 05:04:15,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-10-29 05:04:15,865 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:04:15,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:04:15,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-29 05:04:15,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-10-29 05:04:15,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-10-29 05:04:15,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:15,949 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:04:17,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:04:17,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 05:04:17,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 12 [2021-10-29 05:04:17,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023984077] [2021-10-29 05:04:17,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 05:04:17,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 05:04:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2021-10-29 05:04:17,148 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:17,440 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-10-29 05:04:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:04:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-29 05:04:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:17,441 INFO L225 Difference]: With dead ends: 85 [2021-10-29 05:04:17,441 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:04:17,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2021-10-29 05:04:17,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:04:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:04:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:04:17,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-29 05:04:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:17,444 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:04:17,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:04:17,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:04:17,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,448 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,448 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,448 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,448 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,449 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,449 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,449 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,449 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:17,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:17,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:17,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:04:17,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:17,852 INFO L853 garLoopResultBuilder]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-10-29 05:04:17,852 INFO L857 garLoopResultBuilder]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,853 INFO L853 garLoopResultBuilder]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,853 INFO L857 garLoopResultBuilder]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,853 INFO L857 garLoopResultBuilder]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,853 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,853 INFO L853 garLoopResultBuilder]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,853 INFO L857 garLoopResultBuilder]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,853 INFO L853 garLoopResultBuilder]: At program point L18-29(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,854 INFO L853 garLoopResultBuilder]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,854 INFO L857 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L19-5(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L19-6(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L19-7(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L853 garLoopResultBuilder]: At program point L18-38(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L19-8(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L19-9(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,855 INFO L857 garLoopResultBuilder]: For program point L19-10(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,856 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,856 INFO L853 garLoopResultBuilder]: At program point L18-41(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-10-29 05:04:17,856 INFO L857 garLoopResultBuilder]: For program point L19-11(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,856 INFO L857 garLoopResultBuilder]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,856 INFO L857 garLoopResultBuilder]: For program point L19-12(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,856 INFO L857 garLoopResultBuilder]: For program point L19-13(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,856 INFO L853 garLoopResultBuilder]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,856 INFO L857 garLoopResultBuilder]: For program point L19-14(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point L19-15(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L860 garLoopResultBuilder]: At program point L18-47(lines 17 22) the Hoare annotation is: true [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 68) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 54 68) no Hoare annotation was computed. [2021-10-29 05:04:17,857 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 40) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point L55(lines 55 64) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 63) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,859 INFO L853 garLoopResultBuilder]: At program point L48-2(lines 48 72) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-10-29 05:04:17,859 INFO L857 garLoopResultBuilder]: For program point L48-3(lines 48 72) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L853 garLoopResultBuilder]: At program point L32-2(lines 32 44) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (and (= ULTIMATE.start_main_~t~0 0) (< 0 (+ ULTIMATE.start_main_~tagbuf_len~0 1)))) [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point L32-3(lines 32 44) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 68) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:04:17,860 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,861 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,861 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,861 INFO L857 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,861 INFO L853 garLoopResultBuilder]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,861 INFO L857 garLoopResultBuilder]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,861 INFO L853 garLoopResultBuilder]: At program point L18-11(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-10-29 05:04:17,861 INFO L857 garLoopResultBuilder]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,861 INFO L853 garLoopResultBuilder]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:04:17,861 INFO L857 garLoopResultBuilder]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:04:17,869 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:04:17,871 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:04:17,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:04:17 BoogieIcfgContainer [2021-10-29 05:04:17,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:04:17,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:04:17,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:04:17,904 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:04:17,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:13" (3/4) ... [2021-10-29 05:04:17,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:04:17,919 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-29 05:04:17,919 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:04:17,920 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:04:17,920 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:04:17,978 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:04:17,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:04:17,979 INFO L168 Benchmark]: Toolchain (without parser) took 5277.61 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 59.7 MB in the beginning and 72.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,979 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 57.3 MB in the beginning and 57.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:17,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.25 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 59.7 MB in the beginning and 73.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.79 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,981 INFO L168 Benchmark]: Boogie Preprocessor took 48.04 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 70.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,981 INFO L168 Benchmark]: RCFGBuilder took 410.49 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 56.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,982 INFO L168 Benchmark]: TraceAbstraction took 4434.33 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 78.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 880.2 kB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,982 INFO L168 Benchmark]: Witness Printer took 74.76 ms. Allocated memory is still 119.5 MB. Free memory was 78.0 MB in the beginning and 72.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:17,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 57.3 MB in the beginning and 57.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.25 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 59.7 MB in the beginning and 73.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.79 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.04 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 70.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 410.49 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 56.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4434.33 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 78.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 880.2 kB. Max. memory is 16.1 GB. * Witness Printer took 74.76 ms. Allocated memory is still 119.5 MB. Free memory was 78.0 MB in the beginning and 72.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 237 SDslu, 99 SDs, 0 SdLazy, 217 SolverSat, 189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 22, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 47 NumberOfFragments, 177 HoareAnnotationTreeSize, 15 FomulaSimplifications, 293 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 3 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2/18 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 - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((0 <= t && 1 <= cond) && t <= tagbuf_len) || (t == 0 && 0 < tagbuf_len + 1) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) RESULT: Ultimate proved your program to be correct! [2021-10-29 05:04:18,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04771804-4da3-4250-a240-b2c341615f22/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...