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/sll2c_remove_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:52,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:52,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:52,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:52,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:52,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:52,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:52,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:52,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:52,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:52,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:52,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:52,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:52,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:52,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:52,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:52,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:52,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:52,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:52,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:52,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:52,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:52,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:52,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:52,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:52,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:52,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:52,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:52,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:52,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:52,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:52,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:52,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:52,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:52,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:52,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:52,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:52,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:52,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:52,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:52,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:52,462 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 21:04:52,489 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:52,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:52,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:52,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:52,492 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:52,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:52,492 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:52,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:52,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:52,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:52,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:52,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:52,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:52,495 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:52,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:52,495 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:52,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:52,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:52,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:52,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:52,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:52,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:52,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:52,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:52,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:52,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:52,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:52,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:52,498 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 21:04:52,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:52,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:52,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:52,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:52,811 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:52,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_remove_all_reverse.i [2019-10-13 21:04:52,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e7aa35d/dfc90da5c2bb41ff92a3a79e1d44670f/FLAG068096b47 [2019-10-13 21:04:53,458 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:53,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_remove_all_reverse.i [2019-10-13 21:04:53,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e7aa35d/dfc90da5c2bb41ff92a3a79e1d44670f/FLAG068096b47 [2019-10-13 21:04:53,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e7aa35d/dfc90da5c2bb41ff92a3a79e1d44670f [2019-10-13 21:04:53,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:53,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:53,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:53,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:53,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:53,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:53" (1/1) ... [2019-10-13 21:04:53,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c635417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:53, skipping insertion in model container [2019-10-13 21:04:53,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:53" (1/1) ... [2019-10-13 21:04:53,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:53,779 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:54,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:54,267 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:54,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:54,381 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:54,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54 WrapperNode [2019-10-13 21:04:54,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:54,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:54,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:54,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:54,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (1/1) ... [2019-10-13 21:04:54,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:54,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:54,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:54,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:54,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (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 21:04:54,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:54,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:54,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:54,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:54,525 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:04:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-13 21:04:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_remove_last [2019-10-13 21:04:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:04:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-13 21:04:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_remove_last [2019-10-13 21:04:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:04:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:04:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:54,917 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:55,114 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:55,115 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:04:55,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:55 BoogieIcfgContainer [2019-10-13 21:04:55,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:55,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:55,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:55,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:55,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:53" (1/3) ... [2019-10-13 21:04:55,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccc4912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:55, skipping insertion in model container [2019-10-13 21:04:55,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:54" (2/3) ... [2019-10-13 21:04:55,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccc4912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:55, skipping insertion in model container [2019-10-13 21:04:55,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:55" (3/3) ... [2019-10-13 21:04:55,125 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_remove_all_reverse.i [2019-10-13 21:04:55,135 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:55,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:55,158 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:55,185 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:55,186 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:55,186 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:55,186 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:55,186 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:55,186 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:55,186 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:55,186 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-10-13 21:04:55,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 21:04:55,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:55,211 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] [2019-10-13 21:04:55,213 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:55,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:55,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1597421219, now seen corresponding path program 1 times [2019-10-13 21:04:55,228 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:55,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252871184] [2019-10-13 21:04:55,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:55,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:55,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:55,410 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 21:04:55,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252871184] [2019-10-13 21:04:55,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:55,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:55,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009275809] [2019-10-13 21:04:55,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:55,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:55,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:55,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:55,438 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2019-10-13 21:04:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:55,466 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2019-10-13 21:04:55,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:55,468 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-13 21:04:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:55,478 INFO L225 Difference]: With dead ends: 71 [2019-10-13 21:04:55,478 INFO L226 Difference]: Without dead ends: 39 [2019-10-13 21:04:55,482 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 21:04:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-13 21:04:55,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-13 21:04:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-13 21:04:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-10-13 21:04:55,529 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 24 [2019-10-13 21:04:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:55,531 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-10-13 21:04:55,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-13 21:04:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 21:04:55,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:55,534 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] [2019-10-13 21:04:55,534 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:55,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:55,535 INFO L82 PathProgramCache]: Analyzing trace with hash 657162430, now seen corresponding path program 1 times [2019-10-13 21:04:55,535 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:55,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774531169] [2019-10-13 21:04:55,536 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:55,536 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:55,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:55,711 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 21:04:55,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774531169] [2019-10-13 21:04:55,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:55,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:04:55,713 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867049807] [2019-10-13 21:04:55,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:55,715 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:55,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:55,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:55,716 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 5 states. [2019-10-13 21:04:55,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:55,789 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2019-10-13 21:04:55,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:04:55,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-13 21:04:55,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:55,791 INFO L225 Difference]: With dead ends: 63 [2019-10-13 21:04:55,792 INFO L226 Difference]: Without dead ends: 42 [2019-10-13 21:04:55,793 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 21:04:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-13 21:04:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-10-13 21:04:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 21:04:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2019-10-13 21:04:55,802 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 24 [2019-10-13 21:04:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:55,802 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2019-10-13 21:04:55,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2019-10-13 21:04:55,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:55,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:55,804 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] [2019-10-13 21:04:55,804 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:55,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1280322166, now seen corresponding path program 1 times [2019-10-13 21:04:55,805 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:55,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607685916] [2019-10-13 21:04:55,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:55,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:55,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:55,939 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607685916] [2019-10-13 21:04:55,939 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:55,939 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:04:55,939 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124209949] [2019-10-13 21:04:55,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:55,940 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:55,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:55,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:55,941 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 4 states. [2019-10-13 21:04:55,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:55,993 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2019-10-13 21:04:55,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:55,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-13 21:04:55,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:55,996 INFO L225 Difference]: With dead ends: 47 [2019-10-13 21:04:55,996 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 21:04:55,997 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 21:04:56,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2019-10-13 21:04:56,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-13 21:04:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-10-13 21:04:56,013 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 32 [2019-10-13 21:04:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:56,015 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-10-13 21:04:56,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-10-13 21:04:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 21:04:56,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:56,017 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, 1, 1, 1] [2019-10-13 21:04:56,017 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:56,018 INFO L82 PathProgramCache]: Analyzing trace with hash 410004661, now seen corresponding path program 1 times [2019-10-13 21:04:56,018 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:56,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624947491] [2019-10-13 21:04:56,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:56,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624947491] [2019-10-13 21:04:56,194 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:56,194 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:04:56,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324783573] [2019-10-13 21:04:56,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:56,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:56,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:56,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:56,196 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 6 states. [2019-10-13 21:04:56,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:56,378 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2019-10-13 21:04:56,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:04:56,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2019-10-13 21:04:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:56,380 INFO L225 Difference]: With dead ends: 58 [2019-10-13 21:04:56,380 INFO L226 Difference]: Without dead ends: 41 [2019-10-13 21:04:56,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:04:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-13 21:04:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-13 21:04:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-13 21:04:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-10-13 21:04:56,388 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 42 [2019-10-13 21:04:56,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:56,389 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-10-13 21:04:56,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-10-13 21:04:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-13 21:04:56,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:56,391 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, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:56,391 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1436962146, now seen corresponding path program 1 times [2019-10-13 21:04:56,391 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:56,392 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063126128] [2019-10-13 21:04:56,392 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,392 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:56,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063126128] [2019-10-13 21:04:56,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:56,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:04:56,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377444963] [2019-10-13 21:04:56,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:56,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:56,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:56,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:56,523 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 4 states. [2019-10-13 21:04:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:56,589 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-10-13 21:04:56,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:56,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2019-10-13 21:04:56,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:56,591 INFO L225 Difference]: With dead ends: 62 [2019-10-13 21:04:56,593 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 21:04:56,594 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:56,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 21:04:56,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-13 21:04:56,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 21:04:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-10-13 21:04:56,606 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 45 [2019-10-13 21:04:56,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:56,607 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-10-13 21:04:56,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-10-13 21:04:56,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 21:04:56,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:56,610 INFO L380 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:56,610 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:56,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1302090595, now seen corresponding path program 1 times [2019-10-13 21:04:56,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:56,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032880188] [2019-10-13 21:04:56,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 21:04:56,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032880188] [2019-10-13 21:04:56,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520972214] [2019-10-13 21:04:56,742 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 21:04:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:56,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:56,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 21:04:57,004 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 21:04:57,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [381098890] [2019-10-13 21:04:57,065 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 48 [2019-10-13 21:04:57,113 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:57,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:57,172 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:57,174 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 26 variables. [2019-10-13 21:04:57,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:57,178 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:57,216 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:04:57,216 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:57,219 INFO L553 sIntCurrentIteration]: We unified 46 AI predicates to 46 [2019-10-13 21:04:57,219 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:57,219 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:57,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 8 [2019-10-13 21:04:57,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348280430] [2019-10-13 21:04:57,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:57,221 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:57,222 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:57,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:57,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:57,222 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 2 states. [2019-10-13 21:04:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:57,227 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-10-13 21:04:57,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:57,227 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-10-13 21:04:57,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:57,228 INFO L225 Difference]: With dead ends: 43 [2019-10-13 21:04:57,228 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:57,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 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 21:04:57,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:57,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2019-10-13 21:04:57,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:57,234 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:57,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:57,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:57,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:57,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:57,550 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:57,551 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:57,551 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:57,551 INFO L446 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: true [2019-10-13 21:04:57,551 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2019-10-13 21:04:57,551 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2019-10-13 21:04:57,551 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:57,552 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:57,552 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:57,552 INFO L443 ceAbstractionStarter]: For program point sll_circular_remove_lastEXIT(lines 584 600) no Hoare annotation was computed. [2019-10-13 21:04:57,552 INFO L443 ceAbstractionStarter]: For program point L589(lines 589 599) no Hoare annotation was computed. [2019-10-13 21:04:57,552 INFO L439 ceAbstractionStarter]: At program point sll_circular_remove_lastENTRY(lines 584 600) the Hoare annotation is: (or (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|))) (not (= 0 (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|))) (and (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|) 0) (= (select (select |#memory_$Pointer$.offset| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|) 0))) [2019-10-13 21:04:57,552 INFO L443 ceAbstractionStarter]: For program point L589-2(lines 584 600) no Hoare annotation was computed. [2019-10-13 21:04:57,552 INFO L443 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2019-10-13 21:04:57,553 INFO L439 ceAbstractionStarter]: At program point L594-3(lines 594 596) the Hoare annotation is: (or (and (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|) 0) (= sll_circular_remove_last_~head.base |sll_circular_remove_last_#in~head.base|) (= sll_circular_remove_last_~head.offset |sll_circular_remove_last_#in~head.offset|) (= (select (select |#memory_$Pointer$.offset| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|) 0)) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|))) (not (= 0 (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|)))) [2019-10-13 21:04:57,553 INFO L443 ceAbstractionStarter]: For program point L594-4(lines 594 596) no Hoare annotation was computed. [2019-10-13 21:04:57,553 INFO L443 ceAbstractionStarter]: For program point L586-1(lines 586 588) no Hoare annotation was computed. [2019-10-13 21:04:57,554 INFO L439 ceAbstractionStarter]: At program point L586-3(lines 586 588) the Hoare annotation is: (or (and (= (select (select |#memory_$Pointer$.base| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|) 0) (= sll_circular_remove_last_~head.base |sll_circular_remove_last_#in~head.base|) (= sll_circular_remove_last_~head.offset |sll_circular_remove_last_#in~head.offset|) (= (select (select |#memory_$Pointer$.offset| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|) 0)) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|))) (not (= 0 (select (select |old(#memory_$Pointer$.base)| |sll_circular_remove_last_#in~head.base|) |sll_circular_remove_last_#in~head.offset|)))) [2019-10-13 21:04:57,554 INFO L443 ceAbstractionStarter]: For program point L586-4(lines 586 588) no Hoare annotation was computed. [2019-10-13 21:04:57,555 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:57,555 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:57,555 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:57,555 INFO L446 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2019-10-13 21:04:57,555 INFO L443 ceAbstractionStarter]: For program point L576-1(line 576) no Hoare annotation was computed. [2019-10-13 21:04:57,555 INFO L446 ceAbstractionStarter]: At program point L573(line 573) the Hoare annotation is: true [2019-10-13 21:04:57,556 INFO L446 ceAbstractionStarter]: At program point L575-2(lines 575 580) the Hoare annotation is: true [2019-10-13 21:04:57,556 INFO L443 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2019-10-13 21:04:57,556 INFO L443 ceAbstractionStarter]: For program point L575-3(lines 575 580) no Hoare annotation was computed. [2019-10-13 21:04:57,556 INFO L446 ceAbstractionStarter]: At program point sll_circular_createENTRY(lines 572 583) the Hoare annotation is: true [2019-10-13 21:04:57,556 INFO L443 ceAbstractionStarter]: For program point sll_circular_createFINAL(lines 572 583) no Hoare annotation was computed. [2019-10-13 21:04:57,556 INFO L443 ceAbstractionStarter]: For program point sll_circular_createEXIT(lines 572 583) no Hoare annotation was computed. [2019-10-13 21:04:57,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:57,556 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:57,556 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:57,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:57,557 INFO L443 ceAbstractionStarter]: For program point L609(lines 609 611) no Hoare annotation was computed. [2019-10-13 21:04:57,557 INFO L439 ceAbstractionStarter]: At program point L607(line 607) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (<= 2 main_~len~0)) [2019-10-13 21:04:57,557 INFO L443 ceAbstractionStarter]: For program point L607-1(lines 606 608) no Hoare annotation was computed. [2019-10-13 21:04:57,557 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 601 615) the Hoare annotation is: true [2019-10-13 21:04:57,557 INFO L439 ceAbstractionStarter]: At program point L604(line 604) the Hoare annotation is: false [2019-10-13 21:04:57,557 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 608) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (<= 2 main_~len~0)) [2019-10-13 21:04:57,558 INFO L443 ceAbstractionStarter]: For program point L604-1(line 604) no Hoare annotation was computed. [2019-10-13 21:04:57,558 INFO L443 ceAbstractionStarter]: For program point L606-3(lines 606 608) no Hoare annotation was computed. [2019-10-13 21:04:57,558 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 601 615) no Hoare annotation was computed. [2019-10-13 21:04:57,558 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 601 615) no Hoare annotation was computed. [2019-10-13 21:04:57,558 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 613) no Hoare annotation was computed. [2019-10-13 21:04:57,559 INFO L439 ceAbstractionStarter]: At program point L610(lines 601 615) the Hoare annotation is: false [2019-10-13 21:04:57,559 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 563 571) the Hoare annotation is: true [2019-10-13 21:04:57,559 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 563 571) no Hoare annotation was computed. [2019-10-13 21:04:57,559 INFO L446 ceAbstractionStarter]: At program point L566(line 566) the Hoare annotation is: true [2019-10-13 21:04:57,559 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 563 571) no Hoare annotation was computed. [2019-10-13 21:04:57,559 INFO L443 ceAbstractionStarter]: For program point L565(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:04:57,559 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:04:57,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,575 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,603 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,604 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,605 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:57 BoogieIcfgContainer [2019-10-13 21:04:57,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:57,617 INFO L168 Benchmark]: Toolchain (without parser) took 3912.77 ms. Allocated memory was 143.7 MB in the beginning and 252.2 MB in the end (delta: 108.5 MB). Free memory was 98.7 MB in the beginning and 167.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:57,618 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 21:04:57,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.46 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.5 MB in the beginning and 165.4 MB in the end (delta: -66.9 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:57,626 INFO L168 Benchmark]: Boogie Preprocessor took 76.90 ms. Allocated memory is still 201.3 MB. Free memory was 165.4 MB in the beginning and 162.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:57,627 INFO L168 Benchmark]: RCFGBuilder took 655.58 ms. Allocated memory is still 201.3 MB. Free memory was 162.6 MB in the beginning and 114.8 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:57,628 INFO L168 Benchmark]: TraceAbstraction took 2493.95 ms. Allocated memory was 201.3 MB in the beginning and 252.2 MB in the end (delta: 50.9 MB). Free memory was 114.1 MB in the beginning and 167.8 MB in the end (delta: -53.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:04:57,635 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.46 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.5 MB in the beginning and 165.4 MB in the end (delta: -66.9 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.90 ms. Allocated memory is still 201.3 MB. Free memory was 165.4 MB in the beginning and 162.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 655.58 ms. Allocated memory is still 201.3 MB. Free memory was 162.6 MB in the beginning and 114.8 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2493.95 ms. Allocated memory was 201.3 MB in the beginning and 252.2 MB in the end (delta: 50.9 MB). Free memory was 114.1 MB in the beginning and 167.8 MB in the end (delta: -53.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 613]: 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: 575]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 594]: Loop Invariant [2019-10-13 21:04:57,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,648 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((#memory_$Pointer$[head][head] == 0 && head == head) && head == head) && #memory_$Pointer$[head][head] == 0) || !(0 == \old(#memory_$Pointer$)[head][head])) || !(0 == \old(#memory_$Pointer$)[head][head]) - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 586]: Loop Invariant [2019-10-13 21:04:57,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((#memory_$Pointer$[head][head] == 0 && head == head) && head == head) && #memory_$Pointer$[head][head] == 0) || !(0 == \old(#memory_$Pointer$)[head][head])) || !(0 == \old(#memory_$Pointer$)[head][head]) - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant [2019-10-13 21:04:57,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:57,656 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:57,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:57,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (#memory_$Pointer$[s][s] == 0 && #memory_$Pointer$[s][s] == 0) && 2 <= len - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 220 SDtfs, 41 SDslu, 334 SDs, 0 SdLazy, 137 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 33 PreInvPairs, 36 NumberOfFragments, 158 HoareAnnotationTreeSize, 33 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 22232 SizeOfPredicates, 2 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 44/47 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 114, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9782608695652174, AVG_VARS_REMOVED_DURING_WEAKENING: 1.5869565217391304, AVG_WEAKENED_CONJUNCTS: 0.13043478260869565, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...