java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2n_append_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:38,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:38,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:38,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:38,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:38,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:38,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:38,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:38,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:38,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:38,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:38,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:38,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:38,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:38,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:38,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:38,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:38,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:38,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:38,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:38,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:38,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:38,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:38,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:38,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:38,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:38,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:38,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:38,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:38,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:38,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:38,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:38,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:38,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:38,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:38,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:38,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:38,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:38,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:38,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:38,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:38,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:03:38,341 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:38,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:38,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:38,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:38,344 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:38,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:38,344 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:38,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:38,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:38,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:38,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:38,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:38,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:38,347 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:38,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:38,347 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:38,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:38,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:38,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:38,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:38,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:38,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:38,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:38,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:38,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:38,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:38,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:38,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:38,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:03:38,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:38,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:38,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:38,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:38,725 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:38,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_append_unequal.i [2019-10-15 01:03:38,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670ed8b1d/941a65cb9e054a2882213f5c430604fe/FLAG86f0849c8 [2019-10-15 01:03:39,285 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:39,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_append_unequal.i [2019-10-15 01:03:39,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670ed8b1d/941a65cb9e054a2882213f5c430604fe/FLAG86f0849c8 [2019-10-15 01:03:39,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670ed8b1d/941a65cb9e054a2882213f5c430604fe [2019-10-15 01:03:39,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:39,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:39,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:39,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:39,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:39,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:39" (1/1) ... [2019-10-15 01:03:39,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ce804d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:39, skipping insertion in model container [2019-10-15 01:03:39,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:39" (1/1) ... [2019-10-15 01:03:39,664 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:39,724 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:40,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:40,225 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:40,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:40,361 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:40,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40 WrapperNode [2019-10-15 01:03:40,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:40,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:40,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:40,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:40,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:40,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:40,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:40,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:40,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-10-15 01:03:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 01:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-15 01:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-10-15 01:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_append [2019-10-15 01:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 01:03:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure dll_append [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:40,956 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:41,152 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:41,153 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:03:41,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:41 BoogieIcfgContainer [2019-10-15 01:03:41,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:41,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:41,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:41,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:41,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:39" (1/3) ... [2019-10-15 01:03:41,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce16172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:41, skipping insertion in model container [2019-10-15 01:03:41,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (2/3) ... [2019-10-15 01:03:41,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce16172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:41, skipping insertion in model container [2019-10-15 01:03:41,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:41" (3/3) ... [2019-10-15 01:03:41,175 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_append_unequal.i [2019-10-15 01:03:41,187 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:41,194 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:41,207 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:41,235 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:41,236 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:41,236 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:41,236 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:41,236 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:41,236 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:41,236 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:41,237 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-15 01:03:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:03:41,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:41,258 INFO L380 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:41,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:41,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1154315247, now seen corresponding path program 1 times [2019-10-15 01:03:41,275 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:41,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126531962] [2019-10-15 01:03:41,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:41,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126531962] [2019-10-15 01:03:41,492 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:41,492 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:41,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891561031] [2019-10-15 01:03:41,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:41,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:41,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:41,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:41,517 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-10-15 01:03:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:41,546 INFO L93 Difference]: Finished difference Result 97 states and 125 transitions. [2019-10-15 01:03:41,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:41,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-10-15 01:03:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:41,557 INFO L225 Difference]: With dead ends: 97 [2019-10-15 01:03:41,557 INFO L226 Difference]: Without dead ends: 42 [2019-10-15 01:03:41,561 INFO L600 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 [2019-10-15 01:03:41,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-15 01:03:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-15 01:03:41,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-15 01:03:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2019-10-15 01:03:41,602 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 29 [2019-10-15 01:03:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:41,603 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-10-15 01:03:41,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2019-10-15 01:03:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:03:41,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:41,605 INFO L380 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:41,606 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:41,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:41,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1593246622, now seen corresponding path program 1 times [2019-10-15 01:03:41,623 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:41,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655388699] [2019-10-15 01:03:41,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:41,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655388699] [2019-10-15 01:03:41,791 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:41,791 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:41,791 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310095751] [2019-10-15 01:03:41,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:41,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:41,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:41,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:41,796 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 5 states. [2019-10-15 01:03:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:41,859 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2019-10-15 01:03:41,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:41,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-15 01:03:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:41,862 INFO L225 Difference]: With dead ends: 76 [2019-10-15 01:03:41,862 INFO L226 Difference]: Without dead ends: 47 [2019-10-15 01:03:41,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:41,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-15 01:03:41,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-10-15 01:03:41,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-15 01:03:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2019-10-15 01:03:41,877 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 29 [2019-10-15 01:03:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:41,878 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2019-10-15 01:03:41,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2019-10-15 01:03:41,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-15 01:03:41,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:41,880 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1] [2019-10-15 01:03:41,880 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:41,880 INFO L82 PathProgramCache]: Analyzing trace with hash 751546294, now seen corresponding path program 1 times [2019-10-15 01:03:41,880 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:41,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125973282] [2019-10-15 01:03:41,881 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,881 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:03:41,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125973282] [2019-10-15 01:03:41,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:41,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:03:41,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055668480] [2019-10-15 01:03:41,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:03:41,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:41,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:03:41,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:41,963 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 3 states. [2019-10-15 01:03:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:41,988 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2019-10-15 01:03:41,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:03:41,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-10-15 01:03:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:41,990 INFO L225 Difference]: With dead ends: 81 [2019-10-15 01:03:41,990 INFO L226 Difference]: Without dead ends: 47 [2019-10-15 01:03:41,991 INFO L600 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 [2019-10-15 01:03:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-15 01:03:41,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-10-15 01:03:41,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-15 01:03:41,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-10-15 01:03:41,999 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 39 [2019-10-15 01:03:41,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:42,000 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-10-15 01:03:42,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:03:42,000 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2019-10-15 01:03:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-15 01:03:42,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:42,001 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1] [2019-10-15 01:03:42,002 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:42,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:42,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1053892040, now seen corresponding path program 1 times [2019-10-15 01:03:42,002 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:42,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507663366] [2019-10-15 01:03:42,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:42,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:42,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:42,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:03:42,117 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507663366] [2019-10-15 01:03:42,117 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497119644] [2019-10-15 01:03:42,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-10-15 01:03:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:42,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:03:42,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:42,324 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:03:42,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1797124855] [2019-10-15 01:03:42,489 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 40 [2019-10-15 01:03:42,535 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:42,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:42,589 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:42,591 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 30 variables. [2019-10-15 01:03:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:42,596 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:42,633 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:42,633 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:42,635 INFO L553 sIntCurrentIteration]: We unified 38 AI predicates to 38 [2019-10-15 01:03:42,636 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:42,636 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:42,637 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6, 6] total 8 [2019-10-15 01:03:42,637 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853613512] [2019-10-15 01:03:42,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:42,638 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:42,639 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:42,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:42,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:42,639 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 2 states. [2019-10-15 01:03:42,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:42,643 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2019-10-15 01:03:42,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:42,643 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 39 [2019-10-15 01:03:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:42,644 INFO L225 Difference]: With dead ends: 46 [2019-10-15 01:03:42,644 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:42,645 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:42,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-10-15 01:03:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:42,646 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:42,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:42,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:42,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:42,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:42,920 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:42,920 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:42,920 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:42,921 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-15 01:03:42,921 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-15 01:03:42,921 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-15 01:03:42,922 INFO L446 ceAbstractionStarter]: At program point L577(line 577) the Hoare annotation is: true [2019-10-15 01:03:42,922 INFO L443 ceAbstractionStarter]: For program point L577-1(line 577) no Hoare annotation was computed. [2019-10-15 01:03:42,923 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 587) the Hoare annotation is: true [2019-10-15 01:03:42,923 INFO L446 ceAbstractionStarter]: At program point L576-2(lines 576 585) the Hoare annotation is: true [2019-10-15 01:03:42,923 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 585) no Hoare annotation was computed. [2019-10-15 01:03:42,923 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 587) no Hoare annotation was computed. [2019-10-15 01:03:42,923 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 587) no Hoare annotation was computed. [2019-10-15 01:03:42,923 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:42,924 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:42,924 INFO L443 ceAbstractionStarter]: For program point L601-1(lines 601 603) no Hoare annotation was computed. [2019-10-15 01:03:42,924 INFO L446 ceAbstractionStarter]: At program point L601-3(lines 601 603) the Hoare annotation is: true [2019-10-15 01:03:42,925 INFO L443 ceAbstractionStarter]: For program point L597(lines 597 606) no Hoare annotation was computed. [2019-10-15 01:03:42,925 INFO L443 ceAbstractionStarter]: For program point L601-4(lines 601 603) no Hoare annotation was computed. [2019-10-15 01:03:42,925 INFO L446 ceAbstractionStarter]: At program point L596(line 596) the Hoare annotation is: true [2019-10-15 01:03:42,925 INFO L443 ceAbstractionStarter]: For program point L596-1(line 596) no Hoare annotation was computed. [2019-10-15 01:03:42,926 INFO L443 ceAbstractionStarter]: For program point L597-2(lines 595 607) no Hoare annotation was computed. [2019-10-15 01:03:42,926 INFO L446 ceAbstractionStarter]: At program point dll_appendENTRY(lines 595 607) the Hoare annotation is: true [2019-10-15 01:03:42,926 INFO L443 ceAbstractionStarter]: For program point dll_appendEXIT(lines 595 607) no Hoare annotation was computed. [2019-10-15 01:03:42,926 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:42,926 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:42,926 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:42,927 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:42,927 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:42,927 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:42,927 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:42,927 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:42,927 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:42,927 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:42,928 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 608 636) no Hoare annotation was computed. [2019-10-15 01:03:42,928 INFO L446 ceAbstractionStarter]: At program point L632(line 632) the Hoare annotation is: true [2019-10-15 01:03:42,928 INFO L443 ceAbstractionStarter]: For program point L632-1(line 632) no Hoare annotation was computed. [2019-10-15 01:03:42,928 INFO L439 ceAbstractionStarter]: At program point L630(lines 608 636) the Hoare annotation is: false [2019-10-15 01:03:42,928 INFO L443 ceAbstractionStarter]: For program point L624(lines 624 626) no Hoare annotation was computed. [2019-10-15 01:03:42,928 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 608 636) no Hoare annotation was computed. [2019-10-15 01:03:42,928 INFO L443 ceAbstractionStarter]: For program point L618(lines 618 620) no Hoare annotation was computed. [2019-10-15 01:03:42,928 INFO L443 ceAbstractionStarter]: For program point L616(lines 616 628) no Hoare annotation was computed. [2019-10-15 01:03:42,929 INFO L443 ceAbstractionStarter]: For program point L616-2(lines 608 636) no Hoare annotation was computed. [2019-10-15 01:03:42,929 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 608 636) the Hoare annotation is: true [2019-10-15 01:03:42,929 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 634) no Hoare annotation was computed. [2019-10-15 01:03:42,929 INFO L443 ceAbstractionStarter]: For program point L617-1(lines 617 623) no Hoare annotation was computed. [2019-10-15 01:03:42,929 INFO L439 ceAbstractionStarter]: At program point L617-3(lines 617 623) the Hoare annotation is: false [2019-10-15 01:03:42,929 INFO L439 ceAbstractionStarter]: At program point L613(line 613) the Hoare annotation is: false [2019-10-15 01:03:42,929 INFO L443 ceAbstractionStarter]: For program point L617-4(lines 617 623) no Hoare annotation was computed. [2019-10-15 01:03:42,930 INFO L443 ceAbstractionStarter]: For program point L613-1(line 613) no Hoare annotation was computed. [2019-10-15 01:03:42,930 INFO L439 ceAbstractionStarter]: At program point L611(line 611) the Hoare annotation is: false [2019-10-15 01:03:42,930 INFO L443 ceAbstractionStarter]: For program point L611-1(line 611) no Hoare annotation was computed. [2019-10-15 01:03:42,930 INFO L443 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 588 594) no Hoare annotation was computed. [2019-10-15 01:03:42,930 INFO L446 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 588 594) the Hoare annotation is: true [2019-10-15 01:03:42,931 INFO L446 ceAbstractionStarter]: At program point L589-2(lines 589 593) the Hoare annotation is: true [2019-10-15 01:03:42,931 INFO L443 ceAbstractionStarter]: For program point L589-3(lines 588 594) no Hoare annotation was computed. [2019-10-15 01:03:42,931 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-15 01:03:42,931 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:42,931 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-15 01:03:42,931 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:42,932 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:42,932 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:42,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:42 BoogieIcfgContainer [2019-10-15 01:03:42,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:42,943 INFO L168 Benchmark]: Toolchain (without parser) took 3300.36 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 101.3 MB in the beginning and 89.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:42,944 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.2 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:42,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.26 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 164.7 MB in the end (delta: -63.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:42,948 INFO L168 Benchmark]: Boogie Preprocessor took 68.42 ms. Allocated memory is still 200.8 MB. Free memory was 164.7 MB in the beginning and 161.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:42,949 INFO L168 Benchmark]: RCFGBuilder took 725.62 ms. Allocated memory is still 200.8 MB. Free memory was 161.9 MB in the beginning and 111.0 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:42,954 INFO L168 Benchmark]: TraceAbstraction took 1782.12 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 111.0 MB in the beginning and 89.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:42,958 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.2 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.26 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 164.7 MB in the end (delta: -63.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.42 ms. Allocated memory is still 200.8 MB. Free memory was 164.7 MB in the beginning and 161.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 725.62 ms. Allocated memory is still 200.8 MB. Free memory was 161.9 MB in the beginning and 111.0 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1782.12 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 111.0 MB in the beginning and 89.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 634]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 62 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 22 SDslu, 164 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 46 PreInvPairs, 47 NumberOfFragments, 21 HoareAnnotationTreeSize, 46 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 11880 SizeOfPredicates, 2 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 107, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9736842105263158, AVG_VARS_REMOVED_DURING_WEAKENING: 1.5526315789473684, AVG_WEAKENED_CONJUNCTS: 0.15789473684210525, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...