./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d5e1e94b71e060a77443e2afd511bc50cc1649d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:36:45,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:36:45,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:36:45,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:36:45,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:36:45,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:36:45,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:36:45,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:36:45,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:36:45,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:36:45,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:36:45,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:36:45,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:36:45,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:36:45,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:36:45,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:36:45,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:36:45,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:36:45,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:36:45,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:36:45,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:36:45,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:36:45,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:36:45,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:36:45,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:36:45,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:36:45,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:36:45,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:36:45,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:36:45,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:36:45,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:36:45,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:36:45,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:36:45,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:36:45,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:36:45,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:36:45,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:36:45,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:36:45,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:36:45,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:36:45,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:36:45,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:36:45,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:36:45,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:36:45,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:36:45,446 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:36:45,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:36:45,446 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:36:45,447 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:36:45,447 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:36:45,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:36:45,447 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:36:45,448 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:36:45,449 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:36:45,449 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:36:45,449 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:36:45,450 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:36:45,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:36:45,451 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:36:45,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:36:45,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:36:45,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:36:45,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:36:45,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:36:45,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:36:45,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:36:45,453 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:36:45,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:36:45,453 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:36:45,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:36:45,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:36:45,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:36:45,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:36:45,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:36:45,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:36:45,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:36:45,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:36:45,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:36:45,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:36:45,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:36:45,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:36:45,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:36:45,459 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5e1e94b71e060a77443e2afd511bc50cc1649d [2020-11-30 01:36:45,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:36:45,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:36:45,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:36:45,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:36:45,848 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:36:45,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2020-11-30 01:36:45,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/data/178cf409c/1c99ff44ccba46f191ca2c041884a87a/FLAG6e0069097 [2020-11-30 01:36:46,417 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:36:46,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2020-11-30 01:36:46,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/data/178cf409c/1c99ff44ccba46f191ca2c041884a87a/FLAG6e0069097 [2020-11-30 01:36:46,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/data/178cf409c/1c99ff44ccba46f191ca2c041884a87a [2020-11-30 01:36:46,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:36:46,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:36:46,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:36:46,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:36:46,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:36:46,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:36:46" (1/1) ... [2020-11-30 01:36:46,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c09bf69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:46, skipping insertion in model container [2020-11-30 01:36:46,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:36:46" (1/1) ... [2020-11-30 01:36:46,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:36:46,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:36:47,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:36:47,058 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:36:47,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:36:47,097 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:36:47,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47 WrapperNode [2020-11-30 01:36:47,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:36:47,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:36:47,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:36:47,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:36:47,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:36:47,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:36:47,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:36:47,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:36:47,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... [2020-11-30 01:36:47,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:36:47,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:36:47,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:36:47,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:36:47,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:36:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:36:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:36:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:36:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:36:47,975 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:36:47,976 INFO L298 CfgBuilder]: Removed 70 assume(true) statements. [2020-11-30 01:36:47,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:36:47 BoogieIcfgContainer [2020-11-30 01:36:47,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:36:47,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:36:47,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:36:47,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:36:47,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:36:46" (1/3) ... [2020-11-30 01:36:47,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b80afbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:36:47, skipping insertion in model container [2020-11-30 01:36:47,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:36:47" (2/3) ... [2020-11-30 01:36:48,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b80afbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:36:47, skipping insertion in model container [2020-11-30 01:36:48,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:36:47" (3/3) ... [2020-11-30 01:36:48,002 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2020-11-30 01:36:48,014 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:36:48,020 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-30 01:36:48,030 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-30 01:36:48,055 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:36:48,055 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:36:48,055 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:36:48,056 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:36:48,056 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:36:48,056 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:36:48,056 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:36:48,056 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:36:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-11-30 01:36:48,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:36:48,087 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:36:48,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:36:48,089 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:36:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:36:48,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1541448954, now seen corresponding path program 1 times [2020-11-30 01:36:48,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:36:48,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452357759] [2020-11-30 01:36:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:36:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:36:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:36:48,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452357759] [2020-11-30 01:36:48,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:36:48,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:36:48,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624903493] [2020-11-30 01:36:48,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:36:48,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:36:48,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:36:48,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:36:48,332 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 2 states. [2020-11-30 01:36:48,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:36:48,394 INFO L93 Difference]: Finished difference Result 198 states and 279 transitions. [2020-11-30 01:36:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:36:48,396 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:36:48,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:36:48,416 INFO L225 Difference]: With dead ends: 198 [2020-11-30 01:36:48,416 INFO L226 Difference]: Without dead ends: 90 [2020-11-30 01:36:48,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:36:48,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-30 01:36:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-30 01:36:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-30 01:36:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2020-11-30 01:36:48,493 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 7 [2020-11-30 01:36:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:36:48,494 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2020-11-30 01:36:48,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:36:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2020-11-30 01:36:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:36:48,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:36:48,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:36:48,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:36:48,497 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:36:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:36:48,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1896790105, now seen corresponding path program 1 times [2020-11-30 01:36:48,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:36:48,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428890666] [2020-11-30 01:36:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:36:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:36:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:36:48,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428890666] [2020-11-30 01:36:48,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:36:48,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:36:48,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115632725] [2020-11-30 01:36:48,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:36:48,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:36:48,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:36:48,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:36:48,649 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand 4 states. [2020-11-30 01:36:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:36:48,853 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2020-11-30 01:36:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:36:48,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 01:36:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:36:48,855 INFO L225 Difference]: With dead ends: 94 [2020-11-30 01:36:48,855 INFO L226 Difference]: Without dead ends: 70 [2020-11-30 01:36:48,856 INFO L677 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 [2020-11-30 01:36:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-30 01:36:48,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-11-30 01:36:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-30 01:36:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-11-30 01:36:48,863 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 7 [2020-11-30 01:36:48,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:36:48,863 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-11-30 01:36:48,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:36:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-11-30 01:36:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:36:48,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:36:48,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:36:48,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:36:48,865 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:36:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:36:48,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2072703358, now seen corresponding path program 1 times [2020-11-30 01:36:48,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:36:48,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968280853] [2020-11-30 01:36:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:36:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:36:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:36:48,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968280853] [2020-11-30 01:36:48,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:36:48,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:36:48,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105413063] [2020-11-30 01:36:48,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:36:48,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:36:48,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:36:48,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:36:48,966 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 5 states. [2020-11-30 01:36:49,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:36:49,212 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2020-11-30 01:36:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:36:49,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-30 01:36:49,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:36:49,215 INFO L225 Difference]: With dead ends: 87 [2020-11-30 01:36:49,215 INFO L226 Difference]: Without dead ends: 60 [2020-11-30 01:36:49,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:36:49,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-30 01:36:49,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-11-30 01:36:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-30 01:36:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-11-30 01:36:49,233 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 9 [2020-11-30 01:36:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:36:49,233 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-11-30 01:36:49,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:36:49,233 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-11-30 01:36:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:36:49,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:36:49,235 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:36:49,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:36:49,235 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:36:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:36:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1487169254, now seen corresponding path program 1 times [2020-11-30 01:36:49,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:36:49,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060508223] [2020-11-30 01:36:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:36:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:36:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:36:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060508223] [2020-11-30 01:36:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349936996] [2020-11-30 01:36:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:36:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:36:49,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:36:49,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:36:49,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:36:49,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:36:49,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:36:49,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:36:49,835 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:36:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:36:49,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [331577027] [2020-11-30 01:36:49,938 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2020-11-30 01:36:49,938 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 01:36:49,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 01:36:49,956 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 01:36:49,959 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 01:36:50,605 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 01:36:50,841 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-30 01:36:51,220 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-11-30 01:36:51,612 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-11-30 01:36:52,074 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2020-11-30 01:36:52,465 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:36:52,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 01:36:52,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 12 [2020-11-30 01:36:52,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135821897] [2020-11-30 01:36:52,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 01:36:52,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:36:52,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 01:36:52,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-11-30 01:36:52,468 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 12 states. [2020-11-30 01:36:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:36:52,917 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2020-11-30 01:36:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:36:52,917 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-11-30 01:36:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:36:52,918 INFO L225 Difference]: With dead ends: 90 [2020-11-30 01:36:52,918 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:36:52,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2020-11-30 01:36:52,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:36:52,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:36:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:36:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:36:52,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 01:36:52,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:36:52,920 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:36:52,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 01:36:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:36:52,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:36:53,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2020-11-30 01:36:53,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:36:53,478 INFO L270 CegarLoopResult]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,478 INFO L274 CegarLoopResult]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,478 INFO L270 CegarLoopResult]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2020-11-30 01:36:53,479 INFO L274 CegarLoopResult]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,479 INFO L274 CegarLoopResult]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,479 INFO L270 CegarLoopResult]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,479 INFO L274 CegarLoopResult]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,479 INFO L270 CegarLoopResult]: At program point L18-29(lines 17 22) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,479 INFO L274 CegarLoopResult]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,480 INFO L270 CegarLoopResult]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2020-11-30 01:36:53,480 INFO L274 CegarLoopResult]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,480 INFO L274 CegarLoopResult]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,480 INFO L270 CegarLoopResult]: At program point L18-38(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,480 INFO L274 CegarLoopResult]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,480 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,480 INFO L270 CegarLoopResult]: At program point L18-41(lines 17 22) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L270 CegarLoopResult]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L277 CegarLoopResult]: At program point L18-47(lines 17 22) the Hoare annotation is: true [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point L54(lines 54 68) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point L54-1(lines 54 68) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,481 INFO L274 CegarLoopResult]: For program point L55(lines 55 64) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point L59(lines 59 63) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,482 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-7(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-11(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-15(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-16(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-18(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-19(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point L12-20(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,483 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-22(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-23(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-24(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-26(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-27(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-28(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-30(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-31(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-32(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-34(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-35(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-36(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,484 INFO L274 CegarLoopResult]: For program point L12-38(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-39(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-40(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-42(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-43(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-44(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-46(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-47(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-48(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-50(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-51(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-52(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-54(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-55(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-56(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,485 INFO L274 CegarLoopResult]: For program point L12-58(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,486 INFO L274 CegarLoopResult]: For program point L12-59(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,486 INFO L274 CegarLoopResult]: For program point L12-60(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,489 INFO L274 CegarLoopResult]: For program point L12-62(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,490 INFO L274 CegarLoopResult]: For program point L12-63(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,490 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,490 INFO L270 CegarLoopResult]: At program point L48-2(lines 48 72) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2020-11-30 01:36:53,490 INFO L274 CegarLoopResult]: For program point L48-3(lines 48 72) no Hoare annotation was computed. [2020-11-30 01:36:53,491 INFO L270 CegarLoopResult]: At program point L32-2(lines 32 44) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0))) (or (and (= ULTIMATE.start_main_~t~0 0) .cse0) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0) .cse0))) [2020-11-30 01:36:53,491 INFO L274 CegarLoopResult]: For program point L32-3(lines 32 44) no Hoare annotation was computed. [2020-11-30 01:36:53,491 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,491 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-11-30 01:36:53,491 INFO L274 CegarLoopResult]: For program point L66(lines 66 68) no Hoare annotation was computed. [2020-11-30 01:36:53,492 INFO L274 CegarLoopResult]: For program point L33(lines 33 37) no Hoare annotation was computed. [2020-11-30 01:36:53,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:36:53,492 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,494 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2020-11-30 01:36:53,494 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,495 INFO L274 CegarLoopResult]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,495 INFO L270 CegarLoopResult]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,495 INFO L274 CegarLoopResult]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,495 INFO L270 CegarLoopResult]: At program point L18-11(lines 17 22) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,496 INFO L274 CegarLoopResult]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,496 INFO L270 CegarLoopResult]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2020-11-30 01:36:53,496 INFO L274 CegarLoopResult]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:36:53,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:36:53 BoogieIcfgContainer [2020-11-30 01:36:53,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:36:53,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:36:53,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:36:53,521 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:36:53,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:36:47" (3/4) ... [2020-11-30 01:36:53,525 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:36:53,541 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2020-11-30 01:36:53,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:36:53,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:36:53,543 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:36:53,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9c949bcd-8cd7-4352-ab88-584dafe3152c/bin/utaipan/witness.graphml [2020-11-30 01:36:53,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:36:53,633 INFO L168 Benchmark]: Toolchain (without parser) took 6856.10 ms. Allocated memory was 86.0 MB in the beginning and 151.0 MB in the end (delta: 65.0 MB). Free memory was 49.3 MB in the beginning and 103.4 MB in the end (delta: -54.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,633 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 65.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:36:53,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.44 ms. Allocated memory is still 86.0 MB. Free memory was 49.1 MB in the beginning and 62.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 60.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,635 INFO L168 Benchmark]: Boogie Preprocessor took 48.50 ms. Allocated memory is still 86.0 MB. Free memory was 60.7 MB in the beginning and 59.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,635 INFO L168 Benchmark]: RCFGBuilder took 781.23 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 66.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,636 INFO L168 Benchmark]: TraceAbstraction took 5538.98 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 66.5 MB in the beginning and 109.7 MB in the end (delta: -43.2 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,636 INFO L168 Benchmark]: Witness Printer took 111.38 ms. Allocated memory is still 151.0 MB. Free memory was 109.7 MB in the beginning and 103.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:36:53,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 65.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.44 ms. Allocated memory is still 86.0 MB. Free memory was 49.1 MB in the beginning and 62.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 60.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.50 ms. Allocated memory is still 86.0 MB. Free memory was 60.7 MB in the beginning and 59.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 781.23 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 66.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5538.98 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 66.5 MB in the beginning and 109.7 MB in the end (delta: -43.2 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. * Witness Printer took 111.38 ms. Allocated memory is still 151.0 MB. Free memory was 109.7 MB in the beginning and 103.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && t + 1 <= tagbuf_len) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (t + 1 <= tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (t == 0 && t <= tagbuf_len) || ((1 <= cond && 0 <= t) && t <= tagbuf_len) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (t + 1 <= tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && t + 1 <= tagbuf_len) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (t + 1 <= tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (t + 1 <= tagbuf_len && 1 <= cond) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && t + 1 <= tagbuf_len) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && t + 1 <= tagbuf_len) && 0 <= t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (1 <= cond && 0 <= t) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!(0 == cond) && t + 1 <= tagbuf_len) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 108 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 230 SDslu, 167 SDs, 0 SdLazy, 266 SolverSat, 177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 47 NumberOfFragments, 175 HoareAnnotationTreeSize, 15 FomulaSimplifications, 362 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 167 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 5354 SizeOfPredicates, 5 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...