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-ext3-properties/sll_circular_traversal-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:24,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:24,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:24,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:24,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:24,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:24,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:24,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:24,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:24,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:24,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:24,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:24,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:24,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:24,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:24,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:24,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:24,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:24,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:24,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:24,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:24,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:24,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:24,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:24,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:24,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:24,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:24,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:24,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:24,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:24,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:24,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:24,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:24,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:24,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:24,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:24,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:24,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:24,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:24,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:24,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:24,494 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 [2019-10-13 21:04:24,508 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:24,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:24,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:24,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:24,509 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:24,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:24,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:24,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:24,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:24,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:24,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:24,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:24,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:24,511 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:24,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:24,512 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:24,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:24,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:24,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:24,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:24,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:24,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:24,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:24,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:24,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:24,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:24,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:24,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:24,515 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 [2019-10-13 21:04:24,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:24,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:24,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:24,802 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:24,802 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:24,803 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-10-13 21:04:24,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dfc27dd4/f855ea19892b41009323e92f1c957419/FLAGea3c441a0 [2019-10-13 21:04:25,399 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:25,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-10-13 21:04:25,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dfc27dd4/f855ea19892b41009323e92f1c957419/FLAGea3c441a0 [2019-10-13 21:04:25,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dfc27dd4/f855ea19892b41009323e92f1c957419 [2019-10-13 21:04:25,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:25,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:25,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:25,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:25,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:25,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:25" (1/1) ... [2019-10-13 21:04:25,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45070ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:25, skipping insertion in model container [2019-10-13 21:04:25,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:25" (1/1) ... [2019-10-13 21:04:25,748 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:25,795 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:26,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:26,252 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:26,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:26,356 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:26,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26 WrapperNode [2019-10-13 21:04:26,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:26,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:26,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:26,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:26,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (1/1) ... [2019-10-13 21:04:26,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:26,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:26,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:26,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:26,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (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 [2019-10-13 21:04:26,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:26,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-13 21:04:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:26,835 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:27,017 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:27,018 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 21:04:27,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:27 BoogieIcfgContainer [2019-10-13 21:04:27,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:27,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:27,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:27,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:27,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:25" (1/3) ... [2019-10-13 21:04:27,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd888a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:27, skipping insertion in model container [2019-10-13 21:04:27,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:26" (2/3) ... [2019-10-13 21:04:27,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd888a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:27, skipping insertion in model container [2019-10-13 21:04:27,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:27" (3/3) ... [2019-10-13 21:04:27,027 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2019-10-13 21:04:27,036 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:27,044 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:27,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:27,078 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:27,079 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:27,079 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:27,079 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:27,080 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:27,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:27,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:27,080 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:27,095 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-10-13 21:04:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-13 21:04:27,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:27,101 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:27,103 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:27,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:27,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1054550836, now seen corresponding path program 1 times [2019-10-13 21:04:27,116 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:27,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731107057] [2019-10-13 21:04:27,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:27,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:27,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:27,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731107057] [2019-10-13 21:04:27,268 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:27,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:27,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867043180] [2019-10-13 21:04:27,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:27,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:27,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:27,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:27,294 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-10-13 21:04:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:27,325 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2019-10-13 21:04:27,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:27,327 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-13 21:04:27,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:27,335 INFO L225 Difference]: With dead ends: 53 [2019-10-13 21:04:27,336 INFO L226 Difference]: Without dead ends: 26 [2019-10-13 21:04:27,338 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 [2019-10-13 21:04:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-13 21:04:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-13 21:04:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-13 21:04:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-10-13 21:04:27,375 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2019-10-13 21:04:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:27,375 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-10-13 21:04:27,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-10-13 21:04:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-13 21:04:27,377 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:27,377 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:27,377 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:27,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:27,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1615663296, now seen corresponding path program 1 times [2019-10-13 21:04:27,378 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:27,378 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155414815] [2019-10-13 21:04:27,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:27,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:27,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:27,525 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155414815] [2019-10-13 21:04:27,526 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:27,526 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:04:27,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642343722] [2019-10-13 21:04:27,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:27,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:27,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:27,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:27,534 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2019-10-13 21:04:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:27,591 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2019-10-13 21:04:27,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:04:27,592 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-10-13 21:04:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:27,593 INFO L225 Difference]: With dead ends: 42 [2019-10-13 21:04:27,593 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 21:04:27,594 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 [2019-10-13 21:04:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 21:04:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-10-13 21:04:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 21:04:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-10-13 21:04:27,601 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2019-10-13 21:04:27,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:27,602 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-10-13 21:04:27,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-10-13 21:04:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 21:04:27,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:27,620 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] [2019-10-13 21:04:27,621 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1504540904, now seen corresponding path program 1 times [2019-10-13 21:04:27,623 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:27,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419914617] [2019-10-13 21:04:27,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:27,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:27,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:27,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419914617] [2019-10-13 21:04:27,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482427026] [2019-10-13 21:04:27,774 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 [2019-10-13 21:04:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:27,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:04:27,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:27,959 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:28,060 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [365891151] [2019-10-13 21:04:28,066 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 22 [2019-10-13 21:04:28,108 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:28,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:28,198 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:28,200 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Performed 33 root evaluator evaluations with a maximum evaluation depth of 0. Performed 33 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-10-13 21:04:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:28,203 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:28,266 INFO L227 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 88.89% of their original sizes. [2019-10-13 21:04:28,267 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:28,274 INFO L553 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-10-13 21:04:28,275 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:28,275 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:28,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6, 6] total 11 [2019-10-13 21:04:28,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710431326] [2019-10-13 21:04:28,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:28,277 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:28,277 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:28,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:28,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:28,278 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 4 states. [2019-10-13 21:04:28,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:28,281 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-13 21:04:28,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:28,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-13 21:04:28,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:28,282 INFO L225 Difference]: With dead ends: 27 [2019-10-13 21:04:28,282 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:28,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:28,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-10-13 21:04:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:28,284 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:28,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:28,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:28,492 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:28,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:28,543 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:28,544 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:28,544 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:28,544 INFO L446 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: true [2019-10-13 21:04:28,544 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2019-10-13 21:04:28,544 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2019-10-13 21:04:28,544 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:28,544 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:28,545 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:28,545 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:28,545 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:28,545 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:28,545 INFO L446 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: true [2019-10-13 21:04:28,545 INFO L446 ceAbstractionStarter]: At program point sll_circular_createENTRY(lines 563 583) the Hoare annotation is: true [2019-10-13 21:04:28,545 INFO L446 ceAbstractionStarter]: At program point L566(line 566) the Hoare annotation is: true [2019-10-13 21:04:28,546 INFO L443 ceAbstractionStarter]: For program point sll_circular_createFINAL(lines 563 583) no Hoare annotation was computed. [2019-10-13 21:04:28,546 INFO L443 ceAbstractionStarter]: For program point L573(lines 573 575) no Hoare annotation was computed. [2019-10-13 21:04:28,546 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2019-10-13 21:04:28,546 INFO L439 ceAbstractionStarter]: At program point L571-2(lines 571 580) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 5)) (not (= |sll_circular_create_#in~data| 1))) [2019-10-13 21:04:28,546 INFO L443 ceAbstractionStarter]: For program point L571-3(lines 571 580) no Hoare annotation was computed. [2019-10-13 21:04:28,546 INFO L443 ceAbstractionStarter]: For program point L565(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:04:28,547 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:04:28,547 INFO L443 ceAbstractionStarter]: For program point sll_circular_createEXIT(lines 563 583) no Hoare annotation was computed. [2019-10-13 21:04:28,547 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:28,547 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:28,547 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:28,547 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:28,547 INFO L439 ceAbstractionStarter]: At program point L601(lines 584 611) the Hoare annotation is: false [2019-10-13 21:04:28,547 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 584 611) no Hoare annotation was computed. [2019-10-13 21:04:28,548 INFO L443 ceAbstractionStarter]: For program point L599-1(lines 599 607) no Hoare annotation was computed. [2019-10-13 21:04:28,548 INFO L439 ceAbstractionStarter]: At program point L599-3(lines 599 607) the Hoare annotation is: false [2019-10-13 21:04:28,548 INFO L443 ceAbstractionStarter]: For program point L599-4(lines 599 607) no Hoare annotation was computed. [2019-10-13 21:04:28,548 INFO L443 ceAbstractionStarter]: For program point L591(lines 591 593) no Hoare annotation was computed. [2019-10-13 21:04:28,548 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 584 611) no Hoare annotation was computed. [2019-10-13 21:04:28,548 INFO L439 ceAbstractionStarter]: At program point L587(line 587) the Hoare annotation is: (and (= main_~len~0 5) (= main_~data_init~0 1)) [2019-10-13 21:04:28,549 INFO L443 ceAbstractionStarter]: For program point L587-1(line 587) no Hoare annotation was computed. [2019-10-13 21:04:28,549 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 609) no Hoare annotation was computed. [2019-10-13 21:04:28,549 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 584 611) the Hoare annotation is: true [2019-10-13 21:04:28,549 INFO L443 ceAbstractionStarter]: For program point L600(lines 600 602) no Hoare annotation was computed. [2019-10-13 21:04:28,549 INFO L443 ceAbstractionStarter]: For program point L590-1(lines 590 597) no Hoare annotation was computed. [2019-10-13 21:04:28,549 INFO L439 ceAbstractionStarter]: At program point L590-3(lines 590 597) the Hoare annotation is: false [2019-10-13 21:04:28,549 INFO L443 ceAbstractionStarter]: For program point L590-4(lines 590 597) no Hoare annotation was computed. [2019-10-13 21:04:28,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:28 BoogieIcfgContainer [2019-10-13 21:04:28,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:28,564 INFO L168 Benchmark]: Toolchain (without parser) took 2830.66 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 101.1 MB in the beginning and 134.1 MB in the end (delta: -33.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:28,565 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:04:28,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.93 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 169.7 MB in the end (delta: -68.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:28,567 INFO L168 Benchmark]: Boogie Preprocessor took 60.39 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 166.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:28,568 INFO L168 Benchmark]: RCFGBuilder took 600.71 ms. Allocated memory is still 202.9 MB. Free memory was 166.1 MB in the beginning and 122.4 MB in the end (delta: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:28,569 INFO L168 Benchmark]: TraceAbstraction took 1541.38 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 122.4 MB in the beginning and 134.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:28,572 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 623.93 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 169.7 MB in the end (delta: -68.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.39 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 166.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 600.71 ms. Allocated memory is still 202.9 MB. Free memory was 166.1 MB in the beginning and 122.4 MB in the end (delta: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1541.38 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 122.4 MB in the beginning and 134.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 609]: 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: 590]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: !(\old(len) == 5) || !(\old(data) == 1) - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 17 SDslu, 69 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 16 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 3776 SizeOfPredicates, 2 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 138, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9083333333333332, AVG_VARS_REMOVED_DURING_WEAKENING: 1.45, AVG_WEAKENED_CONJUNCTS: 0.7, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...