./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ebd5b9a3160cad0f8876c1414f4b918e994ed8d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:18:27,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:18:27,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:18:27,414 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:18:27,414 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:18:27,415 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:18:27,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:18:27,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:18:27,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:18:27,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:18:27,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:18:27,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:18:27,421 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:18:27,422 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:18:27,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:18:27,423 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:18:27,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:18:27,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:18:27,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:18:27,428 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:18:27,429 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:18:27,430 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:18:27,432 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:18:27,432 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:18:27,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:18:27,433 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:18:27,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:18:27,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:18:27,435 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:18:27,436 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:18:27,437 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:18:27,437 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:18:27,437 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:18:27,438 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:18:27,438 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:18:27,439 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:18:27,439 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:18:27,450 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:18:27,450 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:18:27,451 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:18:27,451 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:18:27,451 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:18:27,451 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:18:27,451 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:18:27,452 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:18:27,452 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:18:27,452 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:18:27,452 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:18:27,453 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:18:27,453 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:18:27,453 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:18:27,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:18:27,454 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:18:27,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:18:27,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:18:27,454 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:18:27,454 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:18:27,454 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:18:27,455 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:18:27,455 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:18:27,455 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:18:27,455 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:18:27,455 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:18:27,455 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:18:27,456 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:18:27,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:18:27,456 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 6ebd5b9a3160cad0f8876c1414f4b918e994ed8d [2018-10-26 23:18:27,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:18:27,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:18:27,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:18:27,509 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:18:27,509 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:18:27,510 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/../../sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:18:27,561 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/data/8a2780f33/96481fe165084d89b14ab69b6c8478ea/FLAG4b39a1801 [2018-10-26 23:18:27,970 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:18:27,971 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/sv-benchmarks/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:18:27,981 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/data/8a2780f33/96481fe165084d89b14ab69b6c8478ea/FLAG4b39a1801 [2018-10-26 23:18:27,994 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/data/8a2780f33/96481fe165084d89b14ab69b6c8478ea [2018-10-26 23:18:28,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:18:28,003 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:18:28,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:18:28,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:18:28,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:18:28,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f85506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28, skipping insertion in model container [2018-10-26 23:18:28,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:18:28,049 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:18:28,258 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:18:28,266 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:18:28,300 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:18:28,337 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:18:28,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28 WrapperNode [2018-10-26 23:18:28,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:18:28,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:18:28,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:18:28,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:18:28,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... [2018-10-26 23:18:28,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:18:28,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:18:28,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:18:28,462 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:18:28,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/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 [2018-10-26 23:18:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:18:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:18:28,504 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-10-26 23:18:28,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-10-26 23:18:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-10-26 23:18:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-10-26 23:18:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-10-26 23:18:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-10-26 23:18:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-10-26 23:18:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-10-26 23:18:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-10-26 23:18:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-10-26 23:18:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-10-26 23:18:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-10-26 23:18:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-10-26 23:18:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-10-26 23:18:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-10-26 23:18:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-10-26 23:18:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-10-26 23:18:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-10-26 23:18:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-10-26 23:18:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-10-26 23:18:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-10-26 23:18:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-10-26 23:18:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-10-26 23:18:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-10-26 23:18:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-10-26 23:18:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-10-26 23:18:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 23:18:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 23:18:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:18:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:18:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 23:18:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:18:29,187 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:18:29,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:18:29 BoogieIcfgContainer [2018-10-26 23:18:29,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:18:29,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:18:29,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:18:29,192 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:18:29,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:18:28" (1/3) ... [2018-10-26 23:18:29,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7485902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:18:29, skipping insertion in model container [2018-10-26 23:18:29,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:18:28" (2/3) ... [2018-10-26 23:18:29,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7485902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:18:29, skipping insertion in model container [2018-10-26 23:18:29,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:18:29" (3/3) ... [2018-10-26 23:18:29,195 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag_false-unreach-call_false-valid-memcleanup.i [2018-10-26 23:18:29,203 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:18:29,209 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:18:29,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:18:29,247 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:18:29,248 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:18:29,248 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:18:29,248 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:18:29,248 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:18:29,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:18:29,249 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:18:29,249 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:18:29,249 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:18:29,264 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-10-26 23:18:29,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:18:29,269 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:18:29,270 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:18:29,272 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:18:29,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:18:29,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1851164745, now seen corresponding path program 1 times [2018-10-26 23:18:29,278 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:18:29,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:18:29,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:29,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:18:29,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:18:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:18:29,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:18:29,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:18:29,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:18:29,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:18:29,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:18:29,407 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-10-26 23:18:29,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:18:29,428 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2018-10-26 23:18:29,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:18:29,429 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 23:18:29,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:18:29,436 INFO L225 Difference]: With dead ends: 68 [2018-10-26 23:18:29,437 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 23:18:29,439 INFO L605 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 [2018-10-26 23:18:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 23:18:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 23:18:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 23:18:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-10-26 23:18:29,471 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2018-10-26 23:18:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:18:29,472 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-10-26 23:18:29,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:18:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-10-26 23:18:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:18:29,473 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:18:29,473 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:18:29,474 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:18:29,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:18:29,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1791267399, now seen corresponding path program 1 times [2018-10-26 23:18:29,475 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:18:29,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:18:29,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:29,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:18:29,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:18:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:18:29,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:18:29,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:18:29,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:18:29,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:18:29,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:18:29,665 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 6 states. [2018-10-26 23:18:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:18:29,926 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2018-10-26 23:18:29,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:18:29,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-10-26 23:18:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:18:29,928 INFO L225 Difference]: With dead ends: 96 [2018-10-26 23:18:29,928 INFO L226 Difference]: Without dead ends: 92 [2018-10-26 23:18:29,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:18:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-10-26 23:18:29,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 51. [2018-10-26 23:18:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-26 23:18:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2018-10-26 23:18:29,938 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 22 [2018-10-26 23:18:29,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:18:29,938 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2018-10-26 23:18:29,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:18:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2018-10-26 23:18:29,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 23:18:29,939 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:18:29,939 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:18:29,939 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:18:29,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:18:29,940 INFO L82 PathProgramCache]: Analyzing trace with hash 577692452, now seen corresponding path program 1 times [2018-10-26 23:18:29,940 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:18:29,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:18:29,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:29,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:18:29,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:18:30,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:18:30,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:18:30,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:18:30,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:18:30,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:18:30,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:18:30,084 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 6 states. [2018-10-26 23:18:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:18:30,467 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2018-10-26 23:18:30,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:18:30,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-10-26 23:18:30,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:18:30,468 INFO L225 Difference]: With dead ends: 94 [2018-10-26 23:18:30,468 INFO L226 Difference]: Without dead ends: 82 [2018-10-26 23:18:30,469 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:18:30,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-10-26 23:18:30,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 48. [2018-10-26 23:18:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-26 23:18:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2018-10-26 23:18:30,474 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 27 [2018-10-26 23:18:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:18:30,474 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2018-10-26 23:18:30,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:18:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2018-10-26 23:18:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 23:18:30,475 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:18:30,475 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:18:30,475 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:18:30,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:18:30,475 INFO L82 PathProgramCache]: Analyzing trace with hash -457360686, now seen corresponding path program 1 times [2018-10-26 23:18:30,475 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:18:30,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:18:30,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:30,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:18:30,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:18:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:18:30,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:18:30,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:18:30,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:18:30,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:18:30,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:18:30,610 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 6 states. [2018-10-26 23:18:30,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:18:30,779 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2018-10-26 23:18:30,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 23:18:30,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-10-26 23:18:30,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:18:30,780 INFO L225 Difference]: With dead ends: 80 [2018-10-26 23:18:30,780 INFO L226 Difference]: Without dead ends: 65 [2018-10-26 23:18:30,781 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:18:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-10-26 23:18:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2018-10-26 23:18:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-26 23:18:30,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-10-26 23:18:30,785 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 27 [2018-10-26 23:18:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:18:30,786 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-10-26 23:18:30,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:18:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-10-26 23:18:30,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 23:18:30,787 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:18:30,787 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:18:30,787 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:18:30,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:18:30,787 INFO L82 PathProgramCache]: Analyzing trace with hash 145336543, now seen corresponding path program 1 times [2018-10-26 23:18:30,787 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:18:30,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:18:30,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:30,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:18:30,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:18:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:18:30,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:18:30,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:18:30,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:18:30,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:18:30,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:18:30,834 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 3 states. [2018-10-26 23:18:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:18:30,866 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2018-10-26 23:18:30,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:18:30,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-10-26 23:18:30,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:18:30,869 INFO L225 Difference]: With dead ends: 88 [2018-10-26 23:18:30,869 INFO L226 Difference]: Without dead ends: 59 [2018-10-26 23:18:30,870 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:18:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-10-26 23:18:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-10-26 23:18:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-26 23:18:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-10-26 23:18:30,874 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 33 [2018-10-26 23:18:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:18:30,875 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-10-26 23:18:30,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:18:30,875 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-10-26 23:18:30,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 23:18:30,876 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:18:30,876 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:18:30,876 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:18:30,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:18:30,876 INFO L82 PathProgramCache]: Analyzing trace with hash -526982049, now seen corresponding path program 1 times [2018-10-26 23:18:30,876 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:18:30,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:18:30,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:30,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:18:30,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:18:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:18:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:18:30,925 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:18:30,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:18:30 BoogieIcfgContainer [2018-10-26 23:18:30,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:18:30,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:18:30,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:18:30,957 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:18:30,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:18:29" (3/4) ... [2018-10-26 23:18:30,960 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:18:31,004 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cfe73866-4a84-49c3-a55a-6822cb709e43/bin-2019/uautomizer/witness.graphml [2018-10-26 23:18:31,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:18:31,005 INFO L168 Benchmark]: Toolchain (without parser) took 3003.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.8 MB in the beginning and 992.3 MB in the end (delta: -40.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:18:31,007 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:18:31,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.21 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:18:31,008 INFO L168 Benchmark]: Boogie Preprocessor took 123.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 930.1 MB in the beginning and 1.2 GB in the end (delta: -222.4 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:18:31,008 INFO L168 Benchmark]: RCFGBuilder took 726.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:18:31,009 INFO L168 Benchmark]: TraceAbstraction took 1767.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 103.0 MB). Peak memory consumption was 103.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:18:31,009 INFO L168 Benchmark]: Witness Printer took 48.79 ms. Allocated memory is still 1.2 GB. Free memory was 997.6 MB in the beginning and 992.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:18:31,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.21 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 123.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 930.1 MB in the beginning and 1.2 GB in the end (delta: -222.4 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 726.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1767.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 103.0 MB). Peak memory consumption was 103.0 MB. Max. memory is 11.5 GB. * Witness Printer took 48.79 ms. Allocated memory is still 1.2 GB. Free memory was 997.6 MB in the beginning and 992.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 652]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] int flag = __VERIFIER_nondet_int(); [L628] List p, a, t; VAL [flag=0] [L629] EXPR, FCALL malloc(sizeof(struct node)) VAL [flag=0, malloc(sizeof(struct node))={11:0}] [L629] a = (List) malloc(sizeof(struct node)) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}] [L630] COND FALSE !(a == 0) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}] [L631] p = a VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, p={11:0}] [L632] COND TRUE __VERIFIER_nondet_int() [L633] COND FALSE !(\read(flag)) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, p={11:0}] [L636] FCALL p->h = 2 VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, p={11:0}] [L638] EXPR, FCALL malloc(sizeof(struct node)) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}] [L638] t = (List) malloc(sizeof(struct node)) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, t={10:0}] [L639] COND FALSE !(t == 0) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, t={10:0}] [L640] FCALL p->n = t VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, t={10:0}] [L641] EXPR, FCALL p->n VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, p->n={10:0}, t={10:0}] [L641] p = p->n [L632] COND FALSE !(__VERIFIER_nondet_int()) [L643] FCALL p->h = 3 VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={10:0}, t={10:0}] [L644] p = a VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, t={10:0}] [L645] COND FALSE !(\read(flag)) VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, t={10:0}] [L649] EXPR, FCALL p->h VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, p->h=2, t={10:0}] [L649] COND FALSE !(p->h == 1) [L651] EXPR, FCALL p->h VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, p->h=2, t={10:0}] [L651] COND TRUE p->h != 3 [L652] __VERIFIER_error() VAL [a={11:0}, flag=0, malloc(sizeof(struct node))={11:0}, malloc(sizeof(struct node))={10:0}, p={11:0}, t={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 198 SDtfs, 180 SDslu, 317 SDs, 0 SdLazy, 205 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 102 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 8464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...