java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:45,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:45,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:45,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:45,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:45,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:45,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:45,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:45,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:45,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:45,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:45,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:45,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:45,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:45,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:45,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:45,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:45,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:45,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:45,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:45,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:45,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:45,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:45,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:45,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:45,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:45,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:45,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:45,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:45,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:45,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:45,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:45,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:45,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:45,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:45,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:45,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:45,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:45,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:45,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:45,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:45,526 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 21:04:45,559 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:45,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:45,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:45,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:45,563 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:45,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:45,564 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:45,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:45,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:45,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:45,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:45,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:45,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:45,568 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:45,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:45,568 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:45,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:45,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:45,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:45,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:45,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:45,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:45,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:45,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:45,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:45,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:45,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:45,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:45,572 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 21:04:45,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:45,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:45,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:45,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:45,886 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:45,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all.i [2019-10-13 21:04:45,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2866fbb4c/94719449a8124bb6afe82a9caf0cf34a/FLAG0de6f5d08 [2019-10-13 21:04:46,564 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:46,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all.i [2019-10-13 21:04:46,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2866fbb4c/94719449a8124bb6afe82a9caf0cf34a/FLAG0de6f5d08 [2019-10-13 21:04:46,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2866fbb4c/94719449a8124bb6afe82a9caf0cf34a [2019-10-13 21:04:46,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:46,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:46,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:46,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:46,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:46,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:46" (1/1) ... [2019-10-13 21:04:46,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388d384c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:46, skipping insertion in model container [2019-10-13 21:04:46,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:46" (1/1) ... [2019-10-13 21:04:46,891 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:46,942 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:47,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:47,391 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:47,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:47,534 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:47,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47 WrapperNode [2019-10-13 21:04:47,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:47,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:47,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:47,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:47,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:47,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:47,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:47,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:47,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (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 21:04:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:47,672 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:04:47,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-13 21:04:47,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-10-13 21:04:47,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2019-10-13 21:04:47,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2019-10-13 21:04:47,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:47,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:47,685 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:47,685 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:47,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:47,691 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:47,691 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:04:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-13 21:04:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-10-13 21:04:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2019-10-13 21:04:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2019-10-13 21:04:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:48,113 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:48,288 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:48,289 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 21:04:48,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:48 BoogieIcfgContainer [2019-10-13 21:04:48,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:48,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:48,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:48,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:48,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:46" (1/3) ... [2019-10-13 21:04:48,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a7df93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:48, skipping insertion in model container [2019-10-13 21:04:48,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (2/3) ... [2019-10-13 21:04:48,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a7df93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:48, skipping insertion in model container [2019-10-13 21:04:48,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:48" (3/3) ... [2019-10-13 21:04:48,298 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2019-10-13 21:04:48,308 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:48,318 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:48,330 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:48,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:48,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:48,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:48,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:48,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:48,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:48,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:48,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-10-13 21:04:48,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 21:04:48,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:48,386 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:48,387 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:48,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:48,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1303429635, now seen corresponding path program 1 times [2019-10-13 21:04:48,402 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:48,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056517306] [2019-10-13 21:04:48,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,403 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:48,568 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 21:04:48,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056517306] [2019-10-13 21:04:48,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:48,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:48,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512700796] [2019-10-13 21:04:48,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:48,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:48,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:48,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:48,595 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2019-10-13 21:04:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:48,621 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2019-10-13 21:04:48,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:48,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-10-13 21:04:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:48,631 INFO L225 Difference]: With dead ends: 86 [2019-10-13 21:04:48,632 INFO L226 Difference]: Without dead ends: 38 [2019-10-13 21:04:48,635 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 21:04:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-13 21:04:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-13 21:04:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-13 21:04:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2019-10-13 21:04:48,675 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2019-10-13 21:04:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:48,676 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2019-10-13 21:04:48,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2019-10-13 21:04:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 21:04:48,678 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:48,678 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:48,678 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:48,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2048382207, now seen corresponding path program 1 times [2019-10-13 21:04:48,679 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:48,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774054773] [2019-10-13 21:04:48,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:48,797 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 21:04:48,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774054773] [2019-10-13 21:04:48,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:48,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:04:48,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102226138] [2019-10-13 21:04:48,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:48,800 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:48,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:48,801 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 5 states. [2019-10-13 21:04:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:48,877 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2019-10-13 21:04:48,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:04:48,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-13 21:04:48,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:48,879 INFO L225 Difference]: With dead ends: 68 [2019-10-13 21:04:48,879 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 21:04:48,880 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 21:04:48,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 21:04:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2019-10-13 21:04:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-13 21:04:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-10-13 21:04:48,888 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 25 [2019-10-13 21:04:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:48,889 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-10-13 21:04:48,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:48,889 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-13 21:04:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 21:04:48,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:48,890 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:48,891 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:48,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1036290808, now seen corresponding path program 1 times [2019-10-13 21:04:48,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:48,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471287324] [2019-10-13 21:04:48,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:49,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471287324] [2019-10-13 21:04:49,014 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:49,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:04:49,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977091718] [2019-10-13 21:04:49,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:04:49,015 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:49,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:04:49,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:04:49,016 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 3 states. [2019-10-13 21:04:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:49,042 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2019-10-13 21:04:49,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:04:49,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-13 21:04:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:49,044 INFO L225 Difference]: With dead ends: 73 [2019-10-13 21:04:49,044 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 21:04:49,045 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:04:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 21:04:49,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-10-13 21:04:49,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-13 21:04:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2019-10-13 21:04:49,053 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 30 [2019-10-13 21:04:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:49,053 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2019-10-13 21:04:49,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:04:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2019-10-13 21:04:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 21:04:49,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:49,055 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:49,055 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:49,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1569732746, now seen corresponding path program 1 times [2019-10-13 21:04:49,056 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:49,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665981329] [2019-10-13 21:04:49,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:49,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:49,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:49,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665981329] [2019-10-13 21:04:49,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219938705] [2019-10-13 21:04:49,141 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 21:04:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:04:49,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:49,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:49,321 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:49,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1845559399] [2019-10-13 21:04:49,449 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 31 [2019-10-13 21:04:49,493 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:49,493 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:49,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:49,572 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 37 root evaluator evaluations with a maximum evaluation depth of 4. Performed 37 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 29 variables. [2019-10-13 21:04:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:49,576 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:49,616 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 82.92% of their original sizes. [2019-10-13 21:04:49,616 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:49,635 INFO L553 sIntCurrentIteration]: We unified 29 AI predicates to 29 [2019-10-13 21:04:49,635 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:49,636 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:49,636 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6, 6] total 12 [2019-10-13 21:04:49,637 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165604257] [2019-10-13 21:04:49,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:49,638 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:49,638 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:49,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:49,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:49,639 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 6 states. [2019-10-13 21:04:49,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:49,655 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-10-13 21:04:49,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:04:49,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-13 21:04:49,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:49,656 INFO L225 Difference]: With dead ends: 42 [2019-10-13 21:04:49,656 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:49,657 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:04:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:49,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:49,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2019-10-13 21:04:49,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:49,658 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:49,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:49,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:49,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:49,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:49,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:49,966 INFO L446 ceAbstractionStarter]: At program point L607-2(lines 607 610) the Hoare annotation is: true [2019-10-13 21:04:49,966 INFO L443 ceAbstractionStarter]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2019-10-13 21:04:49,966 INFO L446 ceAbstractionStarter]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: true [2019-10-13 21:04:49,966 INFO L443 ceAbstractionStarter]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2019-10-13 21:04:49,966 INFO L443 ceAbstractionStarter]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2019-10-13 21:04:49,966 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:49,967 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:49,967 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:49,967 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-13 21:04:49,967 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-13 21:04:49,967 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-13 21:04:49,967 INFO L443 ceAbstractionStarter]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2019-10-13 21:04:49,967 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2019-10-13 21:04:49,968 INFO L439 ceAbstractionStarter]: At program point L576-2(lines 576 589) the Hoare annotation is: (or (not (= |dll_create_#in~data| 1)) (and (= 0 dll_create_~head~0.offset) (= dll_create_~data 1) (= dll_create_~len 2) (= 0 dll_create_~head~0.base)) (not (= |dll_create_#in~len| 2))) [2019-10-13 21:04:49,968 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2019-10-13 21:04:49,968 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2019-10-13 21:04:49,968 INFO L446 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2019-10-13 21:04:49,968 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2019-10-13 21:04:49,968 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 586) no Hoare annotation was computed. [2019-10-13 21:04:49,969 INFO L443 ceAbstractionStarter]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2019-10-13 21:04:49,969 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2019-10-13 21:04:49,969 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:49,969 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:49,969 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:49,969 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:49,970 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:49,970 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:49,970 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:49,970 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:49,970 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:49,970 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:49,970 INFO L446 ceAbstractionStarter]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2019-10-13 21:04:49,971 INFO L443 ceAbstractionStarter]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2019-10-13 21:04:49,971 INFO L443 ceAbstractionStarter]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2019-10-13 21:04:49,971 INFO L446 ceAbstractionStarter]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2019-10-13 21:04:49,971 INFO L443 ceAbstractionStarter]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2019-10-13 21:04:49,971 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2019-10-13 21:04:49,972 INFO L443 ceAbstractionStarter]: For program point L628(line 628) no Hoare annotation was computed. [2019-10-13 21:04:49,972 INFO L439 ceAbstractionStarter]: At program point L624(line 624) the Hoare annotation is: false [2019-10-13 21:04:49,972 INFO L443 ceAbstractionStarter]: For program point L624-1(line 624) no Hoare annotation was computed. [2019-10-13 21:04:49,972 INFO L443 ceAbstractionStarter]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2019-10-13 21:04:49,972 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2019-10-13 21:04:49,973 INFO L439 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: false [2019-10-13 21:04:49,973 INFO L443 ceAbstractionStarter]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2019-10-13 21:04:49,973 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2019-10-13 21:04:49,973 INFO L443 ceAbstractionStarter]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2019-10-13 21:04:49,973 INFO L439 ceAbstractionStarter]: At program point L622-3(lines 622 627) the Hoare annotation is: false [2019-10-13 21:04:49,974 INFO L446 ceAbstractionStarter]: At program point L622-4(lines 622 627) the Hoare annotation is: true [2019-10-13 21:04:49,974 INFO L439 ceAbstractionStarter]: At program point L616(line 616) the Hoare annotation is: (and (= main_~data~0 1) (= main_~len~0 2)) [2019-10-13 21:04:49,974 INFO L439 ceAbstractionStarter]: At program point L618-2(lines 618 621) the Hoare annotation is: false [2019-10-13 21:04:49,974 INFO L443 ceAbstractionStarter]: For program point L616-1(line 616) no Hoare annotation was computed. [2019-10-13 21:04:49,974 INFO L443 ceAbstractionStarter]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2019-10-13 21:04:49,975 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 613 632) the Hoare annotation is: true [2019-10-13 21:04:49,975 INFO L439 ceAbstractionStarter]: At program point L625(lines 613 632) the Hoare annotation is: false [2019-10-13 21:04:49,975 INFO L443 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2019-10-13 21:04:49,975 INFO L446 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: true [2019-10-13 21:04:49,975 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-10-13 21:04:49,976 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2019-10-13 21:04:49,976 INFO L443 ceAbstractionStarter]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:49,976 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:49,976 INFO L443 ceAbstractionStarter]: For program point L567(line 567) no Hoare annotation was computed. [2019-10-13 21:04:49,976 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:49,977 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:49,977 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:49,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:49 BoogieIcfgContainer [2019-10-13 21:04:49,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:49,994 INFO L168 Benchmark]: Toolchain (without parser) took 3121.86 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 101.1 MB in the beginning and 100.6 MB in the end (delta: 488.6 kB). Peak memory consumption was 97.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:49,995 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:04:49,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.08 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 167.6 MB in the end (delta: -66.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:49,997 INFO L168 Benchmark]: Boogie Preprocessor took 68.54 ms. Allocated memory is still 202.9 MB. Free memory was 167.6 MB in the beginning and 165.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:49,997 INFO L168 Benchmark]: RCFGBuilder took 685.87 ms. Allocated memory is still 202.9 MB. Free memory was 165.0 MB in the beginning and 116.5 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,001 INFO L168 Benchmark]: TraceAbstraction took 1699.61 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 115.8 MB in the beginning and 100.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,005 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.08 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 167.6 MB in the end (delta: -66.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.54 ms. Allocated memory is still 202.9 MB. Free memory was 167.6 MB in the beginning and 165.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 685.87 ms. Allocated memory is still 202.9 MB. Free memory was 165.0 MB in the beginning and 116.5 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1699.61 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 115.8 MB in the beginning and 100.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: (!(\old(data) == 1) || (((0 == head && data == 1) && len == 2) && 0 == head)) || !(\old(len) == 2) - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 143 SDtfs, 21 SDslu, 152 SDs, 0 SdLazy, 29 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 36 PreInvPairs, 38 NumberOfFragments, 49 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 8004 SizeOfPredicates, 2 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 127, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9344827586206897, AVG_VARS_REMOVED_DURING_WEAKENING: 1.206896551724138, AVG_WEAKENED_CONJUNCTS: 0.9310344827586207, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...