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/dll2c_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:36,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:36,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:36,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:36,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:36,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:36,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:36,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:36,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:36,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:36,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:36,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:36,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:36,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:36,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:36,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:36,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:36,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:36,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:36,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:36,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:36,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:36,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:36,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:36,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:36,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:36,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:36,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:36,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:36,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:36,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:36,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:36,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:36,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:36,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:36,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:36,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:36,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:36,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:36,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:36,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:36,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:03:36,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:36,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:36,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:36,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:36,341 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:36,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:36,342 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:36,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:36,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:36,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:36,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:36,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:36,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:36,343 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:36,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:36,344 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:36,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:36,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:36,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:36,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:36,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:36,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:36,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:36,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:36,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:36,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:36,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:36,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:36,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:03:36,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:36,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:36,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:36,719 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:36,719 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:36,720 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_update_all.i [2019-10-15 01:03:36,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e5c72619/0713b3c6d5644c36babb90d6939e9059/FLAGb6e295698 [2019-10-15 01:03:37,344 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:37,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_update_all.i [2019-10-15 01:03:37,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e5c72619/0713b3c6d5644c36babb90d6939e9059/FLAGb6e295698 [2019-10-15 01:03:37,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e5c72619/0713b3c6d5644c36babb90d6939e9059 [2019-10-15 01:03:37,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:37,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:37,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:37,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:37,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:37,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8c8127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:37, skipping insertion in model container [2019-10-15 01:03:37,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:37" (1/1) ... [2019-10-15 01:03:37,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:37,754 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:38,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:38,402 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:38,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:38,539 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:38,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38 WrapperNode [2019-10-15 01:03:38,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:38,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:38,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:38,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:38,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... [2019-10-15 01:03:38,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:38,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:38,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:38,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:38,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 01:03:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-15 01:03:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-10-15 01:03:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_get_data_at [2019-10-15 01:03:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_update_at [2019-10-15 01:03:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 01:03:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_get_data_at [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_update_at [2019-10-15 01:03:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:39,258 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:39,382 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:39,382 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-15 01:03:39,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:39 BoogieIcfgContainer [2019-10-15 01:03:39,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:39,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:39,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:39,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:39,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:37" (1/3) ... [2019-10-15 01:03:39,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a288a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:39, skipping insertion in model container [2019-10-15 01:03:39,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:38" (2/3) ... [2019-10-15 01:03:39,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a288a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:39, skipping insertion in model container [2019-10-15 01:03:39,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:39" (3/3) ... [2019-10-15 01:03:39,394 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_update_all.i [2019-10-15 01:03:39,405 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:39,413 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:39,425 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:39,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:39,452 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:39,452 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:39,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:39,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:39,453 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:39,453 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:39,453 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-15 01:03:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 01:03:39,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:39,482 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, 1, 1] [2019-10-15 01:03:39,485 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:39,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1661227511, now seen corresponding path program 1 times [2019-10-15 01:03:39,499 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:39,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193355091] [2019-10-15 01:03:39,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:39,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193355091] [2019-10-15 01:03:39,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:39,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:39,700 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197725857] [2019-10-15 01:03:39,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:39,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:39,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:39,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:39,725 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2019-10-15 01:03:39,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:39,753 INFO L93 Difference]: Finished difference Result 97 states and 127 transitions. [2019-10-15 01:03:39,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:39,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-10-15 01:03:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:39,765 INFO L225 Difference]: With dead ends: 97 [2019-10-15 01:03:39,765 INFO L226 Difference]: Without dead ends: 45 [2019-10-15 01:03:39,769 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:39,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-15 01:03:39,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-15 01:03:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-15 01:03:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2019-10-15 01:03:39,817 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 32 [2019-10-15 01:03:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:39,819 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2019-10-15 01:03:39,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-10-15 01:03:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 01:03:39,822 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:39,822 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, 1, 1] [2019-10-15 01:03:39,823 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:39,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:39,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1248070634, now seen corresponding path program 1 times [2019-10-15 01:03:39,824 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:39,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299575204] [2019-10-15 01:03:39,824 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,824 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:39,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:40,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299575204] [2019-10-15 01:03:40,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:40,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:40,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643232054] [2019-10-15 01:03:40,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:40,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:40,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:40,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:40,010 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 5 states. [2019-10-15 01:03:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:40,082 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2019-10-15 01:03:40,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:40,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-15 01:03:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:40,085 INFO L225 Difference]: With dead ends: 75 [2019-10-15 01:03:40,085 INFO L226 Difference]: Without dead ends: 50 [2019-10-15 01:03:40,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-15 01:03:40,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2019-10-15 01:03:40,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-15 01:03:40,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2019-10-15 01:03:40,097 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2019-10-15 01:03:40,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:40,097 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2019-10-15 01:03:40,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:40,097 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2019-10-15 01:03:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 01:03:40,099 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:40,099 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] [2019-10-15 01:03:40,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:40,100 INFO L82 PathProgramCache]: Analyzing trace with hash -820838434, now seen corresponding path program 1 times [2019-10-15 01:03:40,100 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:40,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363060289] [2019-10-15 01:03:40,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:40,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:40,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363060289] [2019-10-15 01:03:40,260 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:40,260 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:03:40,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108915738] [2019-10-15 01:03:40,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:03:40,261 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:40,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:03:40,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:40,262 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 4 states. [2019-10-15 01:03:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:40,324 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2019-10-15 01:03:40,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:03:40,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2019-10-15 01:03:40,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:40,326 INFO L225 Difference]: With dead ends: 69 [2019-10-15 01:03:40,326 INFO L226 Difference]: Without dead ends: 56 [2019-10-15 01:03:40,327 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 [2019-10-15 01:03:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-10-15 01:03:40,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2019-10-15 01:03:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-15 01:03:40,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2019-10-15 01:03:40,336 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 42 [2019-10-15 01:03:40,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:40,337 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2019-10-15 01:03:40,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:03:40,337 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2019-10-15 01:03:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-15 01:03:40,339 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:40,339 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, 1, 1, 1, 1, 1] [2019-10-15 01:03:40,339 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:40,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:40,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1202630968, now seen corresponding path program 1 times [2019-10-15 01:03:40,340 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:40,340 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446405713] [2019-10-15 01:03:40,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:40,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:40,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446405713] [2019-10-15 01:03:40,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503323408] [2019-10-15 01:03:40,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:40,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:03:40,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,695 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:40,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1871672889] [2019-10-15 01:03:40,770 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 51 [2019-10-15 01:03:40,812 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:40,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:40,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:40,890 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-10-15 01:03:40,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:40,895 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:40,943 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-10-15 01:03:40,944 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:40,968 INFO L553 sIntCurrentIteration]: We unified 49 AI predicates to 49 [2019-10-15 01:03:40,968 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:40,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:40,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5] total 12 [2019-10-15 01:03:40,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931913531] [2019-10-15 01:03:40,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:03:40,971 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:40,972 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:40,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:03:40,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:40,972 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 6 states. [2019-10-15 01:03:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:41,002 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2019-10-15 01:03:41,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:03:41,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2019-10-15 01:03:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:41,004 INFO L225 Difference]: With dead ends: 48 [2019-10-15 01:03:41,004 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:41,006 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:03:41,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:41,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2019-10-15 01:03:41,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:41,007 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:41,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:03:41,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:41,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:41,209 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:41,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:41,349 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:41,350 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:41,350 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:41,350 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-15 01:03:41,351 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-15 01:03:41,351 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-15 01:03:41,351 INFO L446 ceAbstractionStarter]: At program point dll_circular_destroyENTRY(lines 590 600) the Hoare annotation is: true [2019-10-15 01:03:41,351 INFO L443 ceAbstractionStarter]: For program point L591(lines 591 599) no Hoare annotation was computed. [2019-10-15 01:03:41,351 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-10-15 01:03:41,351 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 593 597) no Hoare annotation was computed. [2019-10-15 01:03:41,351 INFO L443 ceAbstractionStarter]: For program point L591-2(lines 590 600) no Hoare annotation was computed. [2019-10-15 01:03:41,352 INFO L443 ceAbstractionStarter]: For program point dll_circular_destroyEXIT(lines 590 600) no Hoare annotation was computed. [2019-10-15 01:03:41,352 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:41,352 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:41,353 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:41,353 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:41,353 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:41,353 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:41,353 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:41,354 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:41,354 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:41,354 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:41,354 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 615 634) no Hoare annotation was computed. [2019-10-15 01:03:41,354 INFO L443 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2019-10-15 01:03:41,354 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 632) no Hoare annotation was computed. [2019-10-15 01:03:41,355 INFO L439 ceAbstractionStarter]: At program point L626(line 626) the Hoare annotation is: false [2019-10-15 01:03:41,355 INFO L443 ceAbstractionStarter]: For program point L626-1(line 626) no Hoare annotation was computed. [2019-10-15 01:03:41,355 INFO L443 ceAbstractionStarter]: For program point L626-2(lines 626 628) no Hoare annotation was computed. [2019-10-15 01:03:41,355 INFO L439 ceAbstractionStarter]: At program point L622(line 622) the Hoare annotation is: false [2019-10-15 01:03:41,355 INFO L443 ceAbstractionStarter]: For program point L624-2(lines 624 629) no Hoare annotation was computed. [2019-10-15 01:03:41,355 INFO L443 ceAbstractionStarter]: For program point L622-1(lines 620 623) no Hoare annotation was computed. [2019-10-15 01:03:41,355 INFO L439 ceAbstractionStarter]: At program point L624-3(lines 624 629) the Hoare annotation is: false [2019-10-15 01:03:41,356 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 615 634) no Hoare annotation was computed. [2019-10-15 01:03:41,356 INFO L446 ceAbstractionStarter]: At program point L624-4(lines 624 629) the Hoare annotation is: true [2019-10-15 01:03:41,356 INFO L439 ceAbstractionStarter]: At program point L618(line 618) the Hoare annotation is: (and (= main_~data~0 1) (= main_~len~0 2)) [2019-10-15 01:03:41,356 INFO L439 ceAbstractionStarter]: At program point L620-2(lines 620 623) the Hoare annotation is: false [2019-10-15 01:03:41,356 INFO L443 ceAbstractionStarter]: For program point L618-1(line 618) no Hoare annotation was computed. [2019-10-15 01:03:41,356 INFO L443 ceAbstractionStarter]: For program point L620-3(lines 620 623) no Hoare annotation was computed. [2019-10-15 01:03:41,356 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 615 634) the Hoare annotation is: true [2019-10-15 01:03:41,358 INFO L439 ceAbstractionStarter]: At program point L627(lines 615 634) the Hoare annotation is: false [2019-10-15 01:03:41,358 INFO L443 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2019-10-15 01:03:41,359 INFO L439 ceAbstractionStarter]: At program point L575(line 575) the Hoare annotation is: (or (not (= |dll_circular_create_#in~data| 1)) (and (= dll_circular_create_~len 2) (= dll_circular_create_~data 1)) (not (= |dll_circular_create_#in~len| 2))) [2019-10-15 01:03:41,359 INFO L439 ceAbstractionStarter]: At program point L577-2(lines 577 585) the Hoare annotation is: (or (not (= |dll_circular_create_#in~data| 1)) (not (= |dll_circular_create_#in~len| 2))) [2019-10-15 01:03:41,359 INFO L443 ceAbstractionStarter]: For program point dll_circular_createEXIT(lines 574 589) no Hoare annotation was computed. [2019-10-15 01:03:41,359 INFO L443 ceAbstractionStarter]: For program point L575-1(line 575) no Hoare annotation was computed. [2019-10-15 01:03:41,359 INFO L443 ceAbstractionStarter]: For program point L577-3(lines 577 585) no Hoare annotation was computed. [2019-10-15 01:03:41,359 INFO L443 ceAbstractionStarter]: For program point dll_circular_createFINAL(lines 574 589) no Hoare annotation was computed. [2019-10-15 01:03:41,359 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:41,360 INFO L446 ceAbstractionStarter]: At program point dll_circular_createENTRY(lines 574 589) the Hoare annotation is: true [2019-10-15 01:03:41,361 INFO L439 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: (or (not (= |dll_circular_create_#in~data| 1)) (not (= |dll_circular_create_#in~len| 2))) [2019-10-15 01:03:41,361 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:41,363 INFO L446 ceAbstractionStarter]: At program point L609-2(lines 609 612) the Hoare annotation is: true [2019-10-15 01:03:41,366 INFO L443 ceAbstractionStarter]: For program point L609-3(lines 609 612) no Hoare annotation was computed. [2019-10-15 01:03:41,366 INFO L443 ceAbstractionStarter]: For program point dll_circular_update_atFINAL(lines 608 614) no Hoare annotation was computed. [2019-10-15 01:03:41,366 INFO L443 ceAbstractionStarter]: For program point dll_circular_update_atEXIT(lines 608 614) no Hoare annotation was computed. [2019-10-15 01:03:41,367 INFO L446 ceAbstractionStarter]: At program point dll_circular_update_atENTRY(lines 608 614) the Hoare annotation is: true [2019-10-15 01:03:41,367 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-15 01:03:41,367 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:41,367 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-15 01:03:41,370 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:41,370 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:41,370 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:41,371 INFO L443 ceAbstractionStarter]: For program point dll_circular_get_data_atFINAL(lines 601 607) no Hoare annotation was computed. [2019-10-15 01:03:41,371 INFO L443 ceAbstractionStarter]: For program point dll_circular_get_data_atEXIT(lines 601 607) no Hoare annotation was computed. [2019-10-15 01:03:41,371 INFO L446 ceAbstractionStarter]: At program point dll_circular_get_data_atENTRY(lines 601 607) the Hoare annotation is: true [2019-10-15 01:03:41,371 INFO L446 ceAbstractionStarter]: At program point L602-2(lines 602 605) the Hoare annotation is: true [2019-10-15 01:03:41,371 INFO L443 ceAbstractionStarter]: For program point L602-3(lines 602 605) no Hoare annotation was computed. [2019-10-15 01:03:41,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:41 BoogieIcfgContainer [2019-10-15 01:03:41,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:41,400 INFO L168 Benchmark]: Toolchain (without parser) took 3726.16 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 101.3 MB in the beginning and 202.2 MB in the end (delta: -101.0 MB). Peak memory consumption was 113.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:41,401 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:41,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.69 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 101.1 MB in the beginning and 170.9 MB in the end (delta: -69.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:41,403 INFO L168 Benchmark]: Boogie Preprocessor took 88.70 ms. Allocated memory is still 206.6 MB. Free memory was 170.9 MB in the beginning and 168.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:41,404 INFO L168 Benchmark]: RCFGBuilder took 754.53 ms. Allocated memory is still 206.6 MB. Free memory was 168.2 MB in the beginning and 118.8 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:41,405 INFO L168 Benchmark]: TraceAbstraction took 2012.37 ms. Allocated memory was 206.6 MB in the beginning and 246.9 MB in the end (delta: 40.4 MB). Free memory was 118.2 MB in the beginning and 202.2 MB in the end (delta: -84.0 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:41,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 865.69 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 101.1 MB in the beginning and 170.9 MB in the end (delta: -69.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.70 ms. Allocated memory is still 206.6 MB. Free memory was 170.9 MB in the beginning and 168.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 754.53 ms. Allocated memory is still 206.6 MB. Free memory was 168.2 MB in the beginning and 118.8 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2012.37 ms. Allocated memory was 206.6 MB in the beginning and 246.9 MB in the end (delta: 40.4 MB). Free memory was 118.2 MB in the beginning and 202.2 MB in the end (delta: -84.0 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 632]: 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: 609]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: !(\old(data) == 1) || !(\old(len) == 2) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 171 SDtfs, 42 SDslu, 187 SDs, 0 SdLazy, 39 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 39 PreInvPairs, 40 NumberOfFragments, 62 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 15276 SizeOfPredicates, 2 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 24/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 126, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9532312925170067, AVG_VARS_REMOVED_DURING_WEAKENING: 1.3265306122448979, AVG_WEAKENED_CONJUNCTS: 0.4897959183673469, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...